overall_design basis (digboi)- process

8/13/2019 Overall_Design Basis (Digboi)- Process

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00 ALL CS 24.12.07 TSM 26.12.07 SMK 26.12.07 IFC Issued for Comments

Rev. Sheet Name ate Name ate Name ate Status Remar!" !#nd of rev#s#on

$re%ared" rev#sed Che&!ed A%%roved

es#'nat#on (as#s do&ument

UNIT NO. 34, 35, 36 & 37

$ro*e&t Name

MSQ UPGRADATION - IOCL DIGBOI$ro*e&t No.

10169Bo&ument No.

D 10169B 90 4LI 1001Sheet + of

1/6Rev#s#on

00

,$ Ident. No. 1-072-21.do& er#ved from )/A 07, B!"#$ %'( GFA 0373)*

Issue 04 "0.10.1-- Issue Rev. 02 " 21.0.2002 Sheet 1 of 6

$ART II 3 $RC,SS $ACKA),

S,CTIN A 3 ,N)IN,,RIN) ,SI)N (ASIS

S)CTION + IIA

)NGIN))RING D)SIGN BASIS - PROC)SS

.


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T"! % C##

S N. D'*2*#

1 I#'*#

P' D'*2*#

3 M'!*"! D""

4 U*!** S2*%*"*#

5 )*2(# D*# B"*

6 M"'*"! % C#'*# D*# P8*!28

7 P' C#'! "# I#'(#"*#

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9 C, S"#"' & P'"*

10 )*2(# D*#"*# "# N('*#

11 L*# N('*# "# I#*%*"*# S(

1 I#'(# #('*#

13 A#"!* 2*# #('*#

14 P'' '!*% ;"!; #('*#

15 S"% R((#"*#

16 )#;*'#(#"! R*'(#

17 S"( & C##" S(

1: U*!* S"*#, S"% 8


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I#= % R!;"# D(#

No. T#t5e Summar of Rev#s#ons

$ro*e&t Name

MSQ UPGRADATION - IOCL DIGBOI$ro*e&t No. o&ument No.

D10169B904LI1001Sheet + of

3/6Rev#s#on

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1.0 I#'*#

P!" #! 8 *# *#%'("*# 2';* 8 P' L*#', M/S A=#T na%htha >TN8 and )u9ahat# na%htha )RN8#nto a 5#'ht Na%hthafeed#n' the Ne9 ISM3>T un#t un#t 068 and a heav na%htha feed#n' ane?#st#n' >T+reform#n' un#t.

The o=*e&t#ve of 8 R%'(" S2!*' >#* 035?#s to s%5#t the feed from the e?#st#n' reform#n'un#t #nto a 5#'ht reformate feed#n' the str#%%er of Ne9 >T un#t un#t 068 and a heav reformatesend to MS %oo5.

The o=*e&t#ve of 8 N< ISOM-@DT #* >#* 036?#s to treat 5#'ht na%htha from un#t 04 #n orderto %rodu&e a su5fur free and sta=#5#@ed na%htha #n&5ud#n' the 5#'ht reformate feed from un#t 08"

&onta#n#n' 5ess than 0. 9t %%m su5furand 5ess than 0.1 9t %%m n#tro'en" and 0.1%%mma?8?'ento feed the Isomer#@at#on un#t un#t 078.

The o=*e&t#ve of 8 I('*"*# #* >#* 037?#s to #n&rease the RN of the hdrotreated 5#'htna%htha &ut.

The Isomer#@at#on un#t &a%at #s 46.76 Mt+ear and the stream fa&tor #s 000 h+r.

The un#t turndo9n rate #s 0 of the des#'n &a%at 9h#5e ma!#n' on3s%ef#&at#on %rodu&ts.

The %o9er reBu#rement for the ne9 fa#t#es 9#55 =e met from the e?#st#n' sstem. $o9er 9#55 =ed#str#=uted to %ro%osed ne9 un#ts throu'h a ne9 su=stat#on #n&5ud#n' a ne9 transformer to feed thene9 su=stat#on &om%5ete 9#th fa#t#es 5#!e vent#5at#on" f#re dete&t#on + %rote&t#on et&. It #n&5udes a55

&a=5#n' from s9#t&h'ear for LT %ane5 to ne9 un#ts8 and >T feeder for >T dr#ves #n ne9 un#ts8

The s&o%e a5so #n&5udes a55 IS(L ut#5#t#es d#str#=ut#on for a=ove ment#oned un#ts #n&5ud#n' f5are"dra#ns + se9ers and =5o9 do9n sstem.

L#&ensors des#'n for the a=ove ment#oned ;n#ts and $MCs des#'n of the IS(L ;t#5#t d#str#=ut#on#n&5ud#n' f5are" dra#ns + se9ers and =5o9do9n8 and /,, =5end stat#on forms %art of the /,,$a&!a'e of the %ro*e&t.

The des#'n =as#s %resented here #ntends to %rov#de the deta#5 en'#neer#n' &ontra&tor 9#th thete&hn#&a5 #nformat#on reBu#red to &om%5ete the en'#neer#n' des#'n s%ef#&at#ons of the %ro*e&tun#ts #n a un#form and &ons#stent manner.

1.2 ,n'#neer#n' es#'n (as#s ,(8 for a55 fa#t#es" &onta#n#n' te&hn#&a5 #nformat#on a'reed =et9een ICL

and L#&ensor" and ICL and $MC sha55 =e =#nd#n' on the %ro&ess des#'n and en'#neer#n' of un#ts"ut#5#t sstems and offs#te fa#t#es.

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1. Th#s do&ument &onst#tutes &ommon ,n'#neer#n' es#'n (as#s def#n#n' overa55 %ro*e&t reBu#rements forma!#n' the un#ts &om%at#=5e and ensur#n' un#form des#'n %ra&t#&es for the tota5 %ro*e&t. It a5so%rov#des &erta#n m#n#mum reBu#rements s%ef#ed and used = L#&ensor.

1.4 Th#s ,( &onst#tutes the 'u#de5#nes to =e fo55o9ed dur#n' deta#5ed en'#neer#n' des#'n" %ro&urement and&onstru&t#on of the fa#t#es #n th#s %ro*e&t. LSTK Contra&tor sha55 em%5o and #n&or%orate the#r =esten'#neer#n' %ra&t#&es and e?%er#en&e to ensure smooth and safe &omm#ss#on#n' of the %5ant#n&5ud#n' start3u% and shutdo9n+norma5 o%erat#on and emer'en& hand5#n'.

1. The des#'n =as#s #n $ro&ess ata (oo! D (oo! 1 D Eo5ume 1+1" 9h#&h #s %art of $ro&ess $a&!a'e fromL#&ensor" sha55 a5so =e &ons#dered an #nte'ra5 %art of th#s ,(. In &ase of an d#s&re%an& =et9een$ro&ess ata (oo! D (oo! 1 D Eo5ume 1+1 and th#s ,(" LSTK &ontra&tor sha55 re%ort the same to$MC+ICL #n 9r#t#n' for ne&essar &5ar#f#&at#on.

.0 P' D'*2*#

.1 P' T*! T B U F' A!! D(#"*#

$ro*e&t Name MS :ua5#t ;%'radat#on

9ner Ind#an #5 Cor%orat#on L#m#ted

Lo&at#on #'=o# Ref#ner" Assam

. U#* N('

The ;n#t num=ers are as fo55o9s

S'. N. F"*!* U#* N('

1 Na%htha S%5#tter 04

2 Reformate S%5#tter 0

Ne9 >T un#t 06

4 Isomer#@at#on un#t 07

.3 U#* D'*2*#

.3.1 U#* 034

N"288" S2!*'

/eed Ca%at

S"*8 R#

N"288" D@DT N"288" C$' N"288" G#* 034?#s to s%5#t the na%htha feed &om%osed = SRN" CN" >TN and)RN #nto

- a 5#'ht na%htha feed#n' the ISM3>T to Isomer#@at#on un#t.

- a heav na%htha feed#n' the e?#st#n' >T+CR; reform#n' un#t.

.3. U#* 035

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R%'(" S2!*'

Ca%at 1020 !'+h

The %ur%ose of the RSU >#* 035?#s to s%5#t reformate feed from the e?#st#n' >T+CR; reform#n'un#t #nto

- a 5#'ht reformate sent to >T str#%%er.

- a heav reformate sent to MS %oo5.

.3.3 U#* 036

@DT U#*

/eed Ca%at

LIG@T NAP@T@A LIG@T R)FORMAT)

Fe#'ht rate #n !'+h 06- 4

The %ur%ose of the @DT >#* 036? #s to %rodu&e a &5ean desu5fur#@ed na%htha &ut to =e%ro&essed #n the Isomer#@at#on un#t 078 after remova5 of a55 #m%ur#t#es 9h#&h are &urrent5%o#sons for &ata5sts su5fur" n#tro'en" 9ater" ha5o'ens" d#o5ef#ns" o5ef#ns" arsen#&" mer&ur andother meta5s8.

.3.4 U#* 037

I('*"*# U#*

/eed Ca%at 4 !'+h

I('*"*# >#* 037?#s the &onvers#on of 5o9 o&tane stra#'ht &ha#n &om%ounds to the#r h#'hero&tane =ran&hed #somers. The 5#'ht hdrodesu5%hur#@ed na%htha feed #s dr#ed and %assed over an

a&t#vated &h5or#de &ata5st #n the %resen&e of on&e throu'h hdro'en a5so dr#ed8. The#somer#@at#on rea&tor tem%eratures are !e%t 5o9 #n the ran'e 1203160GC ta!#n' advanta'e of theh#'her eBu#5#=r#um &on&entrat#on of #somers at 5o9er tem%eratures and m#n#m#@#n' hdro&ra&!#n'.The rea&t#on reBu#res a ver 5o9 %art#a5 %ressure of hdro'en ena=5#n' on&e throu'h hdro'en to=e used.

A de#sohe?an#@er to9er #s #n&5uded #n the f5o9 s&heme to re&&5e the 5o9 o&tane C 6n3%araff#ns and meth5 %entanes =a&! to the rea&tor r&u#t to o=ta#n a h#'h o&tane %rodu&t.

.4 U#* # S'"( %"'

The un#ts are des#'ned 9#th on3stream hours %er ear at 000 hours.

.5 U#* T'# for a#r =5o9ers and a#r &om%ressor des#'n 40C at - R>

&8 F(T for Coo5#n' To9er 2C

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H M#n#mum tem%erature C

H F#nter#@#n' tem%erature 4C

H es#'n m#n#mum tem%erature 4C

H Re5at#ve hum#d#t3 Avera'e 7

3 Ma?#mum -

H r =u5= tem%erature 40C

H (arometr#& %ressure 3 Avera'e 101 m=ar

A**#"! ""

Avera'e 9#nd ve5ot Km+hr

Ma?#mum 9#nd ve5ot 100 Km+hr

,arth Bua!e fa&tor IS 1- Jone E

Ra#nfa55 Ma? re&orded 0 mm #n one hr

17. mm #n 24 hr

;n#t e5evat#on 141. m a=ove sea 5eve5

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4.0 U*!** S2*%*"*#

4.1 ;t#5t #es &ond#t#ons at un#t =atter 5#m#t are '#ven =e5o9. The ut#5#t#es %ressure are as measured at theres%e&t#ve headers #n the %#%era&!" ad*a&ent to the MS: S#te.'rade 5eve5.

S! P"'"(' M*#*(( N'("! M"=*(( M8. D*#1 M)DIUM PR)SSUR) >MP? ST)AM

$ressure" !'+&m' 10 11 12 16.-Tem%erature" GC 20 260 00 4

2 LO PR)SSUR) >LP? ST)AM$ressure" !'+&m' 2.0 2. .0 .0Tem%erature" GC 10 160 170 1

MP COND)NSAT)$ressure" !'+&m' 6 3 3 16.-

Tem%erature" GC 3 3 3 44 LP COND)NSAT)

$ressure" !'+&m' 6 3 3 .0

Tem%erature" GC 3 3 3 1 NITROG)N$ressure" !'+&m' .0 .0 6.0 12.0Tem%erature" GC Am= Am= Am= 6

6 COOLING AT)RSu%%5 $ressure" K'+&m' 2.7 .0 .0 7.0

Return $ressure" K'+&m' 2.2 3 3 7.0

Su%%5 Tem%erature" GC 100

Return Tem%erature" GC 3 3 4 100

7 D)MIN)RALIS)D AT)R

$ressure" K'+&m' 4. .0 .

Tem%erature" GC Am=#ent Am=#ent Am=#ent

BOIL)R F))D AT)R

$ressure" K'+&m' 20 0 40 -0

Tem%erature" GC -0 100 12 10

- S)RIC) AT)R

$ressure" K'+&m' 3 1. 3

Tem%erature" GC 20 0

10 DRINEING AT)R

$ressure" K'+&m' 2. . .

Tem%erature" GC Am= Am= Am=

11 PLANT AIR

$ressure" K'+&m' 6.0 7.0 .0 10.0Tem%erature" GC Am= Am= Am= 100

12 INSTRUM)NT AIR

$ressure" !'+&m' 6.0 7.0 .0 10.0

Tem%erature" GC Am= Am= Am= 100

1 FU)L GAS

$ressure" !'+&m' 1. 2.0 2.2 4.

Tem%erature" GC Am= Am= Am= 100

14 F'8 C"* >S'#8 10


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1 @DROG)N

$ressure" !'+&m' 1- 2.

Tem%erature" GC 4 100

16

$ressure" !'+&m'

Tem%erature" GC

17

4. )!'*"! P


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NITR),N 0.

M,T>AN, 1.07

CAR(NMNOI, 0.2

CP 2.-7

$R$AN, 0.72

$R$N?

L#&ensors m#n#mum Bua5#t reBu#rements for N#tro'en #s as fo55o9s vo58 and same sha55 =e madeava#5a=5e = ICL at un#t =atter 5#m#t

2 %%m ma?.

C 20 %%m ma?.

C2 20 %%m ma?.

ther &ar=on &om%ounds %%m ma?.

Ch5or#ne 1 %%m ma?.

Fater %%m ma?.

>2 20 %%m ma?.

N2 --.7 m#n#.

No=5e 'ases (a5an&e

N2 :;ALIT< vo5ume &om%os#t#on8

N2 --.- vo5 norma58

2 10%%m

C 20%%m ma? %ea! va5ue8 D 10 %%m norma5

C2 20%%m ma? %ea! va5ue8 D 10 %%m norma5

Ch5or#de 1%%m ma?

Fater %%m ma?

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>2 20%%m ma?

ther &ar=on &om%ound %%m ma?

No=5e )as Rema#n

4.5 @'#The Bua5#t of ma!e3u% hdro'en ava#5a=5e at the =atter 5#m#t #s as fo55o9s D

Com%onent Mo5e

>dro'en --.

C1 0.

>2S Q10 %%m mo5e8

>C5 Q0. %%m mo5e8

C Q %%m mo5e8

CS N#5

CPC2 Q20 %%m mo5e8

5ef#ns N#5

>2 No free 9ater

Ma?#mum a55o9a=5e &ontam#nant 5eve5s #n >dro'en ma!e3u%

Tota5 su5fur 1.0 9t %%m ma?.

Tota5 N#tro'en 1.0 9t %%m ma?.

Fater 0. 9t %%m ma?.18

C P C2 10320 9t %%m ma?.

5ef#ns 10 mo5 %%m ma?.

Ch5or#de .0 9t %%m ma?.

>2&om%os#t#on

Com%onent vo5 Im%ur#t#es 9t %%m

>2 m#n8 --.................................. Su5fur ..........................................

C1 ma?8 0.................................... >2 ..........................................

C2 ........................................ C P C2 ma?8 20......................................

C ........................................ 5ef#ns ..........................................

C4 P ........................................ >C5 ma?.8 1 %%m vo5 ma?"

...0. to =e &ons#dered for

&h5or#de 'uard des#'n8

18 At the out5et of the hdro'en drers #n ;n#t 07

Note D >dro'en ma!e3u% to ;n#t 07 shou5d =e ta!en se%arate5 from Ref#ner header a5so from

$SA out5et header.

4.6 A*' Q"!*

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S'.N.

P"'"(' P!"# A*' I#'(# A*'

1 e9 %o#nt at atmos%her#& %ressure 3 40o C

2 Re5at#ve >um#d#t Saturated

#5 Content" %%m N#5 N#5

5.0 )*2(# D*# "*

5.1 C!(#, ! "# R"'

"? D*# P''

/a&tors 5#!e %um% shut3off &ond#t#ons" %ressure dro%s #n re&&5e 5oo% et&. shou5d =e &ons#dered

for f#?#n' des#'n %ressure. $um% shut3off sha55 =e &a5&u5ated at 1.2 ? rated d#fferent#a5%ressure P ma?. su&t#on %ressure.

Equipment which could have to bear the shut-off pressure of a pump in case of a valve closing(either control valve or block valve) is designed for the following pressure:

Design pressure = Design pressure of the suction vessel + liquid height at vessel !! at pumpsuction + "#$% of pump differential pressure&

Fhen o%erat#n' %ressure #s 5ess than or eBua5 to 100 !'+&m'" des#'n %ressure sha55 =e eBua5

to norma5 o%erat#n' %ressure %5us 10 m#n. 2.0 !'+&m8. Fhen o%erat#n' %ressure #s morethan 100 !'+&m'" des#'n %ressure sha55 =e eBua5 to norma5 o%erat#n' %ressure %5us m#n10 !'+&m8.

A55 steam hand5#n' + &ondensate vesse5s sha55 =e des#'ned for fu55 va&uum &ond#t#ons a5so.

A55 vesse5s + &o5umns su=*e&t to #nterna5 %ressure shou5d =e des#'ned to 9#thstand a m#n#mum

e?terna5 %ressure of 0.17 !'+&m a=s.

M#n#mum des#'n %ressure for eBu#%ment &onne&ted 9#th f5are header 9#thout NRE shou5d =e

. !'+&m'.

The %ressure #n 04EE001" %ressure has =een !e%t at 1 K'+&m2' for suff#ent $ressure dro% forthe CE. In su&h &ases" the des#'n #nformat#ons %rov#ded = A?ens to =e fo55o9ed.

S%ea5 &ons#derat#on shou5d =e '#ven for va&uum des#'n8 to the des#'n of vesse5 norma55

su=*e&t to #nterna5 %ressure and &onne&ted to a &om%ressor su&t#on or e*e&tors.

/u55 va&uum 9#55 =e s%ef#ed for #so5a=5e eBu#%ment &onta#n#n' f5u#d hav#n' a va%our %ressure5o9er than atmos%her#& %ressure at am=#ent tem%erature.

/or eBu#%ment su=*e&t to %ressure and tem%erature s9#n's" the ma'n#tude and freBuen& of

these s9#n's 9#55 =e '#ven on the s%ef#&at#on sheet.

Fhen severa5 %#e&es of eBu#%ment are %rote&ted = the same re5#ef va5ve" ea&h %#e&e of

eBu#%ment 9#55 =e des#'ned at 5east for the %ressure #m%osed = the d#s&har'e &ond#t#ons ofthe re5#ef va5ve #n &ase of emer'en&.

/or fra&t#onat#on &o5umns" the referen&e des#'n %ressure #s ta!en as that at the =ottom of the

&o5umn.

The eBu#%ment su=*e&ted to steam out sha55 =e des#'ned for fu55 va&uum. Add#t#ona55" su&h

eBu#%ment sha55 =e des#'ned 9#th ma?#mum o%erat#n' %ressure or steam %ressure 9h#&h ever#s h#'her as o%erat#n' %ressure %5us the standard over des#'n.

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=8 D*# (2'"'

es#'n tem%erature for unf#red %ressure vesse5s and #nter&onne&t#n' %#%#n' 9#55 #n 'enera5 =e

eBua5 to ma?#mum ant#%ated o%erat#n' tem%erature %5us 0GC #f vesse5 o%erates =et9een@ero to 400GC and 2GC #f vesse5 o%erates a=ove 400GC.

Cond#t#ons 5#!e steam3out for hand#n' out vesse5 to ma#ntenan&e8 9#55 =e &ons#dered 9h#5e

s%ef#n' des#'n tem%erature.

/or vesse5s o%erat#n' at am=#ent tem%erature" 6GC 9#55 =e used for me&han#&a5 des#'n.

Note Fhen d#fferent meta5 tem%eratures &an =e %red#&ted to o&&ur for d#fferent @ones of avesse5 dur#n' o%erat#on then d#fferent tem%erature shou5d =e #nd#&ated on the s!et&h andd#fferent tem%. shou5d =e ta!en #nto a&&ount for des#'n#n' the vesse5.

/or feed + eff5uent e?&han'ers of rea&t#on se&t#on P 2G C G C to =e added to ma?.

o%erat#n' tem%erature to ta!e #nto a&&ount the tem%erature %rof#5e mod#f#&at#on at 5o9&a%at.

/or o%erat#n' tem%eratures =e5o9 0GC" des#'n tem%erature to =e m#n#mum o%erat#n'

tem%erature D G C or m#n#mum am=#ent tem%erature" 9h#&hever #s 5o9er.

The effe&t of autorefr#'erat#on due to de%ressur#sat#on to atmos%her#& %ressure 9#55 =e ta!en

#nto &ons#derat#on L$) sstems for e?am%5e8.

? L** R*# *(

Res#den&e t#me #s def#ned =et9een 5o9 5#Bu#d 5eve5 and h#'h 5#Bu#d 5eve5

Serv#&e Res#den&e t#me

Ref5u? 10 m#nutes

In the NS; Ref5u? drum" A?ens has s%ef#ed 1 m#n res#den&e t#me 9h#&h #s to =e fo55o9ed.

Co5umn feed 1 20m#nutes on f5o9 &ontro5

r 10 m#nutes on &as&ade 5eve5 + f5o9 &ontro5

Re=o#5#n' = heater 10 m#nutes on feed to heater

'et(een )** and *** : max o+ the t(o +ollo(ing ,alues

- calculated on net bottom roduct : 15 mn on +lo( control or mn on cascade le,el/+lo( control

+or +urther rocessing or 2 mn (ith discharge to storage.

- calculated on total +eed heater : 2 mn

(et9een LLL and TL 9#th a LSLL #nsta55ed at m#n#mum d#stan&e from LLL8 mn on the eBu#va5ent f5o9rateof the va%or 'enerated #n the f#red heater.

Re=o#5#n' = thermos#%hon 10 to 0 se&onds

$rodu&t to stora'e 23m#nutes

$rodu&t feed#n' another un#t 1 m#nutes on f5o9 &ontro5

r 10 m#nutes on &as&ade 5eve5 + f5o9 &ontro5

/eed sur'e drum 0 m#nutes of d#am Q 1.2 m

20 m#nutes #f 1.2 m Q d#am Q 1. m

1 m#nutes #f 1. m Q d#am

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In the &ase of %um%s ensur#n' severa5 serv#&es su&h as ref5u? and 5#Bu#d d#st#55ate to stora'e" theres#den&e t#me of the &orres%ond#n' vesse5 9#55 =e 9h#&hever #s 'reater from the a=ove 5#st.

? ! S2*%*"*#

Eesse5s 9#55 =e s#@ed a&&ord#n' to #ns#de d#ameter and 21 e55#%t#&a5 heads or hem#s%her#&a5

heads. To% &over f5an'ed #f I Q -00 mm

A55 &onne&t#ons 9#55 =e f5an'ed

243#n&h man9as are &urrent5 s%ef#ed. M#n#mum #ns#de d#ameter sha55 =e 20 #n&hes for

I-00 mm. Lar'er s#@e 9#55 =e s%ef#ed 9hen reBu#red to a&&ommodate #nterna5s.

In traed &o5umns" man9as 9#55 =e %rov#ded a=ove the to% tra" at the feed tra and =e5o9

the =ottom tra. A man9a 9#55 =e %rov#ded at an tra 9#th remova=5e #nterna5s. M#n#mumnum=ers of man9a

ne man9a ever 6000 mm or 10 tras" 9h#&hever #s 5ess

/or sma55 vesse5s 6 >> to =e %rov#ded.

Eesse5s" e?&e%t#on done for rea&tors" 9#55 =e %rov#ded 9#th vent and dra#n no@@5es. Eent and

dra#n s#@es 9#55 not =e #nd#&ated" un5ess reBu#red for %ro&ess reasons.

Se%arate steam3out &onne&t#ons 9#55 =e s%ef#ed.

$referred d#ameters of &o5umns and vesse5s See atta&hed ta=5e #n the fo55o9#n' %a'e.

Fhere

%oss#=5e m#n#mum &o5umn d#ameter to =e 1000 mm.

$5ease e5a=orate as #n 073CC300 " d#a #s 00mm

ReBu#rement of =road eBu#%ment s%ef#&at#on

/o55o9#n' are the &onstra#nts #n trans%ortat#on and hand5#n' of heav eBu#%ment

Ma?#mum 9e#'ht of eBu#%ment 400 MT

Ma?#mum d#ameter #n&5ud#n' no@@5es + %ro*e&t#ons 4. metre

Ma?#mum 5en'th overa55 2 metre

/or I> s%5#tters" #t 9#55 =e a&&e%ta=5e to have more than 2 m

$5ease e5a=orate as e?&e%t I> &o5umn" he#'ht of a55 the &o5umns #n R MS: #s =e5o9 2m

/or sma55 d#ameter to9ers U 008" to9er #nterna5s shou5d =e remova=5e from one end and to

=e &artr#d'e t%e. $rov#de f5an'es 9here ne&essar a5on' to9er.

S#@e of vent and dra#n shou5d =e m#n 2

$ro*e&t Name



14/6Rev#s#on

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15/62

PR)F)RR)D DIAM)T)RS OF COLUMNS & )SS)LS

O* D*"(' >((?

00 2200

08 2008

400 2400

00 2600

600 200

700 000

00 200

-00 4008

1000 600

1100 008

12008 4000

1008 420

1400 400

1008 470

1600 000

17008

100

1-008

2000

21008

NT, Se&ond %referen&e #n =ra&!ets

$ro*e&t Name



15/6Rev#s#on

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16/62

? T'" & P"$*#

Co5umns overs#@#n' to &orres%ond to 10 of norma5 f5o9 rates.

T'"

Ea5ve tras 9#55 norma55 =e s%ef#ed sta#n5ess stee58

Ea5ve tra &o5umns 9#55 =e s%ef#ed 9#th the fo55o9#n' ma?#mum f5ood#n' fa&tors

77 for va&uum to9ers

7 for other serv#&es

70 for &o5umn d#ameters under -00 mm

L#&ensor has a5read s%ef#ed ma? f5ood#n' for a55 the &o5umns 9h#&h ma =e fo55o9ed.

%erat#n' ran'e for the tras 9#55 =e at 5east 0 to 110 of norma5 5oads

Tras 9#55 =e num=ered from the =ottom to%

1131 &hrom#um a55o tra mater#a5 to =e s%ef#ed 9#th 1mm &orros#on a55o9an&e

Ant# S%#n va5ves on tras8 to =e %rov#ded. $5ease e5a=orate8

P"$*#

Co5umn d#ameters are est#mated us#n' &a5&u5at#on methods %rov#ded = the ma*or %a&!#n'manufa&turers.

/or random %a&!#n'" %rov#de hand ho5e at =ottom of %a&!#n'.

5. R"' S2*%* R((#"*#

/or 5o9 a55oed stee5s for Rea&tors

S%ef#& re&ommendat#ons for 1.2 Cr30. Mo and 1.2Cr30.Mo 9#th C5ad or ver5a

"? G#'"! C((#

The #nformat#on '#ven hereafter for V(ase Meta5 :ua5#t and VFe5d#n' resu5ts from L#&ensorse?%er#en&e #n the f#e5d of h#'h %ressure un#ts. S%ef#& &odes" as 9e55 as C5#ent and ,n'#neer#n'Contra&tor Standards ma a5so #nf5uen&e the &ho#&e #n mater#a5s and methods. Therefore" there&ommendat#ons shou5d =e used as 'u#de5#nes =ut the f#na5 des#on #s the res%ons#=#5#t of theeta#5 ,n'#neer#n' Contra&tor.

The data '#ven here shou5d not #n an &ase #nterfere 9#th Manufa&turers !no93ho9 and the#rBua5#t standards.

? S2

These re&ommendat#ons are to =e a%%5#ed to the eBu#%ment fa=r#&ated 9#th 1.2 Cr30. Mo 5o9a55oed stee5 and 1.2 Cr30. Mo 5o9 a55oed stee5 9e5d over5a#d or &5add#n' 9#th austen#t#&sta#n5ess stee5 and =u#5t #n a&&ordan&e 9#th the ASM, &ode as a%%5#&a=5e.

es#'n Code As Referen&e8

ASM, Se&t#on EIII" #v. 1 $ressure Eesse5s

ASM, Se&t#on EIII" #v. 2 $ressure Eesse5s3 A5ternat#ve ru5es

? R"' M"#%"'*#

*? B" M"'*"! P!"

The %5ates to =e used for the fa=r#&at#on of the eBu#%ment sha55 &om%5 9#th the =as#&reBu#rements of the 'rade SA 7 'r11 &52 su%%5emented = fo55o9#n' add#t#ona5 reBu#rements

$ro*e&t Name



16/6Rev#s#on

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17/62

S! M"$*# P'/@" T'"(#

The stee5 %5ates sha55 =e made = the e5e&tr#& furna&e va&uum de'assed stee5 %ro&ess.

>eat treatments ho5d t#me sha55 =e suff#ent to o=ta#n an un#form tem%erature throu'houtthe %5ate.

The tem%er#n' tem%erature sha55 =e ada%ted so as to '#ve the reBu#red me&han#&a5

%ro%ert#es after %ost39e5d heat treatment.

C8(*"! A#"!*

The &hem#&a5 ana5s#s of the %resent stee5 'rade sha55 =e #n &onform#t 9#th ASTM reBu#rements9#th the re&ommended restr#&t#ons

The e?%e&ted 5eve5 of #m%ur#t#es &an =e as fo55o9s

$referen&es

N# 0.20 ma?

Cu 0.1 ma?

S# 0.4430.6 %rodu&t8

C 0.1 ma?

A5 0.00 ma?

E 0.010 ma?

$ 0.007 ma?

S 0.00 ma?

Sn 0.010 ma?

As 0.012 ma?Mn 0. 3 0.7 %rodu&t8

S= 0.004 ma?

N2 0 %%m ma?

2 20 %%m ma?

>2 2 %%m ma?

N= 0.01 ma?

T# 0.01 ma?

$ P Sn 0.012 ma?

In v#e9 of m#n#m#@#n' the r#s! of tem%er em=r#tt5ement" the VW fa&tor sha55 not e?&eed 10.Th#s fa&tor" 9h#&h #s determ#ned = the fo55o9#n' formu5a 9here the e5ements are s%ef#ed#n 9e#'ht %er&enta'es" sha55 ver#f the re5at#on hereafter

H >S* J M#? K >P J S#? K 104 1:0tar'et 108

/urthermore the h#'h %ur#t 5eve5 of the stee5 sha55 =e su&h that $" Sn" S= and As =e as 5o9as %oss#=5e to meet (R;SCAT %arameter O

>10PJ4S#J5SJA?/100 15 22(

A55 e5ements ment#oned here a=ove have to =e &he&!ed on 5ad5e and on %rodu&t.

M8"#*"! P'2'*

$ro*e&t Name



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18/62

Tens#5e $ro%ert#es

3 Tens#5e tests sha55 =e &arr#ed out res%e&t#ve5 at room and des#'n tem%erature.

3 Room tem%erature tens#5e %ro%ert#es sha55 meet the reBu#rements of the mater#a5standard.

Im%a&t Test $ro%ert#es

3 Char% E3not&h #m%a&t test#n' #s reBu#red for a55 %ressure reta#n#n' &om%onents"9e5ds and heat affe&ted @one. The #m%a&t test s%emens sha55 =e &arr#ed out onea&h %5ate. The avera'e of three #m%a&t test va5ues at a tem%erature of 31X C 0X/8 sha55 not =e 5ess than 40 ft. 5= W8 9#thout #nd#v#dua5 va5ue =e5o9 ft.5= 47 W8.Mater#a5s su%%5#ers shou5d #nd#&ate the &ond#t#ons %5ate th#&!ness and heattreatment8 under 9h#&h th#s 'uarantee &an =e e?tended to 30X C 322X /8.

>ardness $ro%ert#es

3 The mater#a5 hardness sha55 not e?&eed 220 >(.

Res%ons#=#5#t for (ase Mater#a5 Tests

3 Me&han#&a5 tests ma =e %erformed = the =ase mater#a5s Manufa&turer or therea&tor Manufa&turer. The =ase mater#a5s Manufa&turer sha55 'uarantee that them#n#mum me&han#&a5 %ro%ert#es reBu#red 9#55 =e met after a55 ant#%ated heattreatments of the rea&tor dur#n' and after fa=r#&at#on.

**? B" M"'*"! F'*#

S! M"$*# 2'/8" '"(#

/or'#n's #n&5ud#n' those used for she55" heads and no@@5es" sha55 &onform to a55reBu#rements of the 'rade SA 63/11 and the add#t#ona5 reBu#rements '#ven for %5atedef#ned a=ove.

A55 for'#n' sha55 =e ordered from stee5 made = the e5e&tr#& furna&e and va&uum de'assed

%ro&ess.Note /or'#n's &an =e made from ho55o9 #n'ots.

C8(*"! A#"!*

In add#t#on to the reBu#rements of mater#a5 standard" the s%ef#& restr#&t#ons e?%osed for%5ates sha55 =e fu55 a%%5#ed.

M8"#*"! P'2'*

A55 #m%a&t test#n' reBu#rements '#ven for %5ates are a%%5#&a=5e for for'#n's.

? !*#

*? G#'"!

The %5ate" or for'#n' ed'e %re%arat#on for 9e5d#n' as 9e55 as the no@@5e o%en#n's 9#55 =e

&arr#ed out = ma&h#n#n'. /5ame &utt#n' ma =e a55o9ed = the &ontra&tor %rov#ded the heataffe&ted @one #s &om%5ete5 removed = ma&h#n#n' or 'r#nd#n'.

**? !*# P'

Fe5d#n' %ro&esses are

SAF Su=mer'ed Ar& Fe5d#n'

SMAF Sh#e5ded Manua5 Ar& Fe5d#n'

)TAF )as Tun'sten Ar& Fe5d#n'

$ro*e&t Name



1:/6Rev#s#on

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19/62

Note A55 the 9e5ds #n hdro'en serv#&e" #n&5ud#n' the #nterna5s" have to =e fu55 %enetrat#ont%e. If th#s #s not %oss#=5e" there 9#55 =e a vent dr#553ho5e of the not 9e5ded area.

***? !*# C#("! C8(*"! A#"!*

The de%os#ted 9e5d meta5 sha55 mat&h 9#th the nom#na5 &hem#&a5 &om%os#t#on of the =ase

mater#a5 and the me&han#&a5 %ro%ert#es of the de%os#ted 9e5d meta5 sha55 meet those of the=ase mater#a5.

The (rus&ato %arameter #n the 9e5d de%os#t sha55 =e fo55o9s

>10P J4S#J 5SJA?/100 15 22(

A55 &hem#&a5 e5ements s%ef#ed #n $$M8

? O;'!"

*? G#'"!

The 9e5d over5a #s a%%5#ed us#n' a t9o35aer te&hn#Bue

/#rst 5aer 0-L

Se&ond 5aer 47

M#n#mum effe&t#ve th#&!ness of und#5uted a55o after f#na5 ma&h#n#n' sha55 =e those reBu#redon eBu#%ment data sheet s%ef#&at#on.

>o9ever" s#n'5e 5aer 9e5d de%os#t over5a ma =e used %rov#ded the fa=r#&ator &andemonstrate to the &ontra&tor the use of a Bua5#f#ed and a&&e%ta=5e %ro&edure.

**? F''* C##

The ferr#te &ontent of the 9e5d de%os#ts 9#55 =e 5ess than " =ut more than = e5on'

d#a'ram to %revent hot &ra&!#n'.

%? P ! @" T'"(#

The eBu#%ment sha55 re&e#ve $F>T as reBu#red = ASM, and+or a%%5#&a=5e &ode &ases.

;n5ess other9#se s%ef#ed = stee5 ma!er the re&ommended ran'e of tem%erature #s 63

720X C dur#n' hours m#n#mum D to =e &onf#rmed = rea&tor manufa&turer a&&ord#n' to 9a55th#&!ness.

A55 9e5d#n' 9#55 =e &om%5eted =efore f#na5 $F>T.

? N# D'*; T*#

Rea&tors &an =e su=m#tted to non3destru&t#ve tests after $F>T

Rad#o'ra%h#& e?am#nat#on %r#or to $F>T8.

;5trason#& e?am#nat#on

Ma'net#& %art#&5e e?am#nat#on

e %enetrant e?am#nat#on of 9e5d over5a

>ardness measurement hardness tester8

/err#te &he&!#n' ma'net#& ferr#tes&o%e8 #n add#t#on to ferr#te eva5uat#on =ased u%onsam%5#n' and &hem#&a5 ana5s#s. A&&e%tan&e &r#ter#a of ferr#te &ontent = ma'net#&ferr#tes&o%e sha55 =e to 10.

5.3 F*' @"'

$ro*e&t Name



19/6Rev#s#on

00

,$ Ident. No. 1-072-21.do& er#ved from )/A 07, Issue 04 "0.10.1-- Issue Rev. " Sheet 1- of 6


20/62

/#red heaters sha55 =e des#'ned for ma?#mum eff#en&. LSTK &ontra&tor sha55 &ons#der =oth

o%t#ons #.e. a#r %re3heat#n' steam 'enerat#on se5e&t the one 9#th h#'her %a=a&! 9#th due&onsu5tat#ons 9#th $MC+ICL.

As 063//3001 #s a sma55 furna&eY a#r %reheat#n' or steam 'enerat#on ma not =e feas#=5e.

>eaters 9#55 =e %rov#ded for 'as f#r#n' on5. /#red heaters to =e des#'ned to meet the %ro&ess

reBu#rement for fue5 'as Bua5#t#es as s%ef#ed under ut#5#t#es s%ef#&at#ons.

Safet #nstrumentat#on sha55 =e %rov#ded as %er IS312 5atest ed#t#on8 a%%5#&a=5e for

$ro&ess >eaters.

In &ommon sta&!" sam%5e %o#nts are to =e %rov#ded for sam%5e &o55e&t#on = $o55ut#on

Contro5 (oard" as %er the#r 'u#de5#nes %rov#ded #n Anne?ure3I.

/#red heaters and au?#5#ar eBu#%ment sha55 &onform to A$I Standard 60 e?&e%t mod#f#ed

added = L#&ensor s%ef#&at#ons + ata Sheet = th#s s%ef#&at#on or others%ef#&at#on.

>eater term#na5s sha55 =e des#'ned to a&&e%t the moments and for&es 5#sted #n Ta=5e 7 of

A$I Standard 60" 9h#&h sha55 =e mu5t#%5#ed = a fa&tor of 2.

The num=er" d#mens#on and !#nd of #nstruments and au?#5#ar &onne&t#ons sha55" as a ru5e"

&onform to $#%#n' Instrumentat#on #a'ram $I8 at the m#n#mum.

$referred order of 5eve5s for steam 'enerat#on" #f reBu#red to =e #n&5uded for ener'

o%t#m#sat#on" 9ou5d =e M$+L$ >eaters sha55 =e %rov#ded for 'as + fue5 o#5 f#r#n'. ,a&h =urnersha55 have a %#5ot 'as =urner. Atom#s#n' steam sha55 =e M$ steam. Soot =5o9ers sha55 =e%neumat#&" 5o&a55 o%erated" retra&ta=5e 9#th auto3manua5 seBuent#a5 &ontro5. Steam a#r de3&o!#n' fa#t sha55 =e %referred #f ne&essar.

,?truded f#ns to =e used u% to 2-0C. /5an'e t%e header u% to 40 =ar or #f fou5#n' a=ove

0.0004 metr#&.

In a55 the f#red heaters" e?tended tu=es used #n &onve&t#on =an! sha55 =e studded tu=es.

Therma5 des#'n of the heater #s to =e done a&&ord#n'5.

A &ommon sta&! for the t9o ne9 heaters #s %referred.

/or mu5t#%ass heaters the fo55o9#n' 9#55 =e s%ef#ed

M#?ed %hase Smmetr#&a5 arran'ement of the %asses and =oard tem%erature #nd#&ator onea&h %ass out5et.

L#Bu#d %hase f5o9 &ontro5 va5ve 9#th a m#n#mum f5o9 sto%%er on ea&h %ass #n5et and =oardtem%erature #nd#&ator on ea&h %ass out5et.

Ea%our %hase Smmetr#&a5 arran'ement of the %asses and =oard tem%erature #nd#&ator onea&h %ass out5et e?&e%t for =o?3t%e heaters In th#s &ase see the manufa&turersre&ommendat#ons8.

S!#n thermo&ou%5e 9#55 =e s%ef#ed for ea&h %ass. S!#n thermo&ou%5e shou5d =e du%5e? and

9e5ded. t%e e?&e%t for =o?3t%e heaters 9#th a 5ar'e num=er of %asses #n th#s &ase" see themanufa&turers re&ommendat#ons.

vers#@#n' 9#55 =e &ons#dered as fo55o9s

To ta!e #nto a&&ount the r#s! of unders#@#n' of heat re&over sstems #.e. feed3eff5uent" feed3=ottom8" fo55o9#n' overs#@#n' #s t%#&a55 s%ef#ed

/eed heater 10 1 of heater dut or of feed + eff5uent e?&han'e dut" 9h#&hever #s'reater.

Re=o#5er of feed + =ottom e?&han'e or 10 1 of re=o#5er dut" 9h#&hever #s 'reater.

Tu=e sheet+han'er su%%ort shou5d =e 0Cr34.N#31N=

$ro*e&t Name



0/6Rev#s#on

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21/62

5.4 @" )=8"#' / A*' C!' / C##' / R*!'

"? G#'"! G*!*#

/o55o9#n' 'enera5 'u#de5#nes sha55 =e fo55o9ed

A#r3&oo5#n' sha55 =e ma?#m#sed for 9h#&h the &ut3off tem%erature of %ro&ess streams sha55 =e

C. >o9ever" 9hen further tr#m3&oo5#n' = 9ater #s ne&essar" the &ut3off tem%erature of

%ro&ess stream sha55 =e 6 de' C. r =u5= tem%erature 42 GC to =e &ons#dered for &oo5ers#@#n'. >o9ever" to avo#d sma55 tr#m &oo5er or a#r &oo5er these 'u#de5#nes &an =e re5a?ed #n&onsu5tat#on 9#th the ICL + $MC.

/or a55 the &oo5ers A?ens has s%ef#ed the &ut off tem%erature 9h#&h shou5d =e fo55o9ed.

$referred stra#'ht tu=e 5en'th #s 6 meters

$referred s#@e for Car=on Stee5 and 5o9 a55o u% to and #n&5ud#n' Cr" Z Mo8 tu=es #s 20 ? 2mm and 2 ? 2. mm.

$referred s#@e for =rass and adm#ra5t tu=es #s 20 ? 2 2 ? 2. mm res%e&t#ve5.

$referred s#@e for h#'h a55o a=ove Cr Z Mo and Austen#t#&8 tu=e #s 20 2 ? t to su#t

des#'n.

$referred tu=e %#t&h #s sBuare %#t&h #n fou5#n' serv#&es /ou5#n' [ 0.0004 hC m2 + !&a58

Ma?#mum a55o9a=5e =und5e 9e#'ht D 1 MT

Ma?#mum a55o9a=5e =und5e d#ameter 1400 mm

M#n#mum over des#'n of 110 on heat dut 9#55 =e &ons#dered for the heat e?&han'ers"e?&e%t

verhead &ondensers 9h#&h have to =e overs#@ed to ta!e #nto a&&ount the 'reater of e#ther110 11 of the est#mated o%erat#n' dut or the dut #n&rease of the &orres%ond#n' re=o#5er.

To ta!e #nto a&&ount the r#s! of unders#@#n' of heat re&over sstems #.e. feed3eff5uent"

feed3=ottom8" the fo55o9#n' overs#@#n' #s t%#&a55 s%ef#ed

3 ,ff5uent &oo5er or feed %reheater8 10 of &oo5er dut or %reheater dut8 or offeed + eff5uent e?&han'e dut" 9h#&hever #s 'reater.

3 Re=o#5er of feed + =ottom e?&han'e or 10 of re=o#5er dut" 9h#&hever #s 'reater.

3 (ottom &oo5er 10 of &oo5er dut or of feed + =ottom e?&han'e dut" 9h#&hever#s 'reater.

ver and a=ove the overdes#'n on heat dut as ment#oned a=ove for heat e?&han'er" theresha55 =e a m#n#mum mar'#n of 10 overdes#'n on &a5&u5ated surfa&e area.

/or 9ater &oo5er =a&! f5ush#n' fa#t#es are reBu#red

/o55o9#n' overdes#'n 9#55 =e &ons#dered for the a#r &oo5ers 10 m#n#mum8

verhead a#r&ondensers 9h#&h have to =e overs#@ed to ta!e #nto a&&ount the 'reater ofe#ther 110 of the est#mated o%erat#n' dut or the dut #n&rease of the &orres%ond#n're=o#5er.

To ta!e #nto a&&ount the r#s! of unders#@#n' of heat re&over sstems #.e. feed3eff5uent"feed3=ottom8" the fo55o9#n' overs#@#n' #s t%#&a55 s%ef#ed

3 Rea&tor eff5uent a#r&oo5er 10 of a#r&oo5er dut or of feed + eff5uent e?&han'edut" 9h#&hever #s 'reater.

3 (ottom a#r &oo5er 10 of a#r &oo5er dut or of feed + =ottom e?&han'e dut"

9h#&hever #s 'reater.

$ro*e&t Name



1/6Rev#s#on

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22/62

ver and a=ove the overdes#'n on heat dut as ment#oned a=ove for a#r &oo5ers" there sha55=e a m#n#mum mar'#n of 10 overdes#'n on &a5&u5ated surfa&e area..

? S8!! "# T 8" =8"#'

M*# %!*# %" #*' * 0.0004 8C-(/E"!

S"'*%**"! "# *#'2'"

L#&ensor has used fo55o9#n' su''ested fou5#n' fa&tors

S %!*# %"'>8' ( C/E"!?

S'"( F!*# %"' S'"( F!*# %"'

>drotreater Rea&tor/eed

0.0004 Isomerate 0.000

>drotreater Rea&tor

eff5uent

0.000 Sta=#5#ser /eed 0.000

Str#%%er feed +overhead va%ors

0.000 Sta=#5#serverheadva%ors

0.000

Isomer#sat#onRea&tor feed+ eff5uent

0.0004

/or sta&!ed e?&han'ers" ma?#mum t9o she55s shou5d =e sta&!ed. If 5ess than 00 mm she55s"

three she55s ma =e sta&!ed.

,?&han'er T%e

S8!! * %!*# T * %!*# T2

0.0002 0.0002 /5oat#n'

Q 0.0002 0.0002 /#?ed T + sheet

0.0002 U 0.0002 ;3tu=e =und5e

U 0.0002 U 0.0002 /#?ed T+sheet or ;3tu=e =und5e

Corros#on a55o9an&e

;n5ess other9#se s%ef#ed &orros#on a55o9an&e for a55 e?&han'ers shou5d =e as %er T,MAstandard C5ass R8.

/or ; tu=e e?&han'er" rad#us ; =end shou5d =e at 5east t#mes tu=es .

$ro*e&t Name



/6Rev#s#on

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23/62

? D*# 2'' %' 8" =8"# *2(#

Ma?#mum ant#%ated o%erat#n' %ressure %5us 10 or 2 !'+&m" 9h#&hever #s 'reater. The

m#n#mum des#'n %ressure #s . !'+&m '.

,?&han'ers that are su=*e&t to %um% shut off" #n 'enera5" sha55 have des#'n %ressure eBua5 to

ma?#mum shut off %ressure as fo55o9s.

Equipment which could have to bear the shut-off pressure of a pump in case of a valve closing(either control valve or block valve) is designed for the following pressure:

Design pressure = Design pressure of the suction vessel + liquid height at vessel !! at pumpsuction + "#$% of pump differential pressure&

In &ase e?&han'er #s o%erat#n' under va&uum or #n steam serv#&e" des#'n shou5d =e for fu55

va&uum.

The tu=es of feed + eff5uent e?&han'er #n h#'h %ressure serv#&e need not =e des#'ned for fu55

des#'n %ressure of the she55 %rov#ded these &om%onents &an never e?%er#en&e these&ond#t#on. Start3u%" shutdo9n emer'en& de%ressur#sat#on &ond#t#on shou5d =e &ons#dered.In add#t#on to a=ove &r#ter#a" des#'n %ressure of an e?&han'er shou5d ref5e&t the 5o&at#on andset %ressure of the safet re5#ev#n' va5ve %rote&t#n' #t. /or h#'h d#fferent#a5 %ressure" thedes#'n %ressure of 5o9est %ressure s#de shou5d =e at 5east 0.77 ? h#'hest %ressure s#de des#'n%ressure.

? D*# (2'"' %' 8" =8"# *2(#

,?&han'er o%erat#n' =et9een @ero to 400G C sha55 =e des#'ned for the ma?#mum ant#%ated

o%erat#n' tem%erature %5us 2G C =ut not 5ess than 6G C.

In &ase of %oss#=5e 5oss of f5o9 of &oo5#n' med#a" the tu=es ma =e su=*e&ted to fu55 %ro&ess

#n5et tem%erature 9#th no mar'#n. These &om%onents shou5d =e des#'ned for ma?#mum%ro&ess ant#%ated tem%. of hotter med#um.

/or feed + eff5uent e?&han'ers of rea&t#on se&t#on P 2GC GC to =e added to ma?. o%erat#n'

tem%erature to ta!e #nto a&&ount the tem%erature %rof#5e mod#f#&at#on at 5o9 &a%at.

,?&han'ers o%erat#n' at 0C and =e5o9 shou5d =e des#'ned for m#n#mum ant#%ated

tem%erature. /or o%erat#n' tem%eratures =e5o9 0GC" des#'n tem%erature to =e m#n#mumo%erat#n' tem%erature D G C or m#n#mum am=#ent tem%erature" 9h#&hever #s 5o9er.

The effe&t of autorefr#'erat#on due to de%ressur#sat#on to atmos%her#& %ressure 9#55 =e ta!en

#nto &ons#derat#on L$) sstems for e?am%5e8.

5.5 P(2

S%are %h#5oso%h

100 s%are for &ont#nuous serv#&e and &r#t#&a5 #nterm#ttent serv#&e

r#ve of %um%s

,5e&tr#& Motor" un5ess other9#se for %ro&ess+safet reasons

,Bu#%ment 9h#&h &ou5d have to =ear the shut3off %ressure of a %um% #n &ase of a va5ve

&5os#n' e#ther &ontro5 va5ve or =5o&! va5ve8 #s des#'ned for the fo55o9#n' %ressure

es#'n %ressure es#'n %ressure of the su&t#on vesse5 P 5#Bu#d he#'ht at vesse5 >LL at %um%su&t#on P 12 of %um% d#fferent#a5 %ressure.

10 overs#@#n' 9#55 norma55 =e s%ef#ed

20 overs#@#n' 9#55 =e s%ef#ed on ref5u? and re=o#5er f5o9 rates.

$ro*e&t Name



3/6Rev#s#on

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24/62

The %um% data sheets s%ef the %ro&ess f5o9 9#thout %rov#s#on for the m#n#mum f5o9 9h#&h9#55 =e s%ef#ed = the %um%s vendor. Fherever reBu#red" the LSTK &ontra&tor to add the%um% m#n#mum f5o9" as %er vendor #nformat#on" to the %ro&ess f5o9 s%ef#ed #n the data sheetto arr#ve at %um% &a%at.

,5e&tr#&a5 motor dr#vers 9#55 =e s%ef#ed. Cr#t#&a5 serv#&e dr#vers 9#55 =e e#ther steam tur=#nesor &onne&ted to e5e&tr#&a5 emer'en& net9or!.

Cont#nuous serv#&e %ro&ess %um%s 9#55 =e s%ef#ed 9#th fu55 s%ares.

Common s%ares &an =e s%ef#ed 9henever a%%ro%r#ate for meter#n' %um%s

$um%s on $Is are sho9n 9#th %ermanent stra#ners at su&t#on.

A55 %um% sha55 =e %rov#ded 9#th =r#d5e &oo5#n' 9ater 5#nes for =ear#n' &oo5#n'" '5and &oo5#n'"sea5 &oo5#n'8 " as %er vendor #nformat#on" even #f these 5#nes are not sho9n on L#&ensors$Is #n /,, %a&!a'e. The return from a55 the %um%s to =e ta!en #nto a vesse5 from 9herethe 9ater to =e %um%ed to the%um%s sha55 =e &onne&ted to a se%arate &oo5#n' 9ater returnheader 9h#&h 9#55 run %ara55e5 to ma#n return header. The ded#&ated &oo5#n' 9ater returnheader for %um%s sha55 =e &onne&ted to ma#n return header at the =atter 5#m#t 9#th %rov#s#onfor #so5at#on. Coo5#n' 9ater to + from ea&h %um% 5#ne s#@es sha55 =e m#n#mum 1 N(. $um%vendors =atter 5#m#t for &oo5#n' 9ater sha55 =e 1 N( ANSI 1.16 f5an'e 9#th &ounter f5an'es"

'as!ets" fasteners for =oth CFS and CFR 5#nes at #nd#v#dua5 %um%s.

S#'ht '5ass for &oo5#n' 9ater f5o9 at %um% =ear#n' hous#n'" sea5s et&.8 shou5d =e =a55 t%e.

ra#ns from %um% =ase %5ates sha55 =e routed" throu'h an o%en funne5 and %#%e5#ne" for ea&h#nd#v#dua5 %um%" to nearest o#5 9ater se9er &at&h %o#nt.

5.6 C(2''

S%are %h#5oso%h

/or re%ro&at#n' &om%ressors" %rov#de 2 of 100

/or Centr#fu'a5" no s%are reBu#red

The re&ommendat#on '#ven #n the A$I Re&ommended $ra&t#&e 21" 5ast ed#t#on" A%%end#? V/

and A$I Re&ommended %ra&t#&e 20" 5ast ed#t#on" A%%end#? V(" 9#55 =e fo55o9ed.

,5e&tr#&a5 motor dr#vers 9#55 =e s%ef#ed. Cr#t#&a5 serv#&e dr#vers 9#55 =e e#ther steam tur=#nesor &onne&ted to e5e&tr#&a5 emer'en& net9or!.

9#n' to the h#'h re5#a=#5#t of &entr#fu'a5 &om%ressors" a s%are 9#55 not =e s%ef#ed. /u55s%are &a%at 9#55 =e s%ef#ed for re%ro&at#n' &om%ressors.

The &om%ressor overs#@#n' 9#55 =e s%ef#ed as fo55o9s

Ma!e3u% 10 20 m#n#mum8

Re&&5e e%ends u%on the %ro&ess

)as Buen&h 20 2 m#n#mum

5.7 S"'-2 B!


25/62

S%are for / fan es

r#ver Motor

Contro5 110 of rated shaft %o9er var#a=5e s%eed

5.: S"$ @*8 L*(*"*#

M#n#mum sta&! he#'ht shou5d =e 9or!ed out us#n' formu5a

> 14 ? :8 0. or 60 metres 9h#&hever #s h#'her

Fhere"

> he#'ht of sta&! #n metres

: S2em#ss#ons #n !'+h

6.0 M"'*"! % C#'*# D*# P8*!28

6.1 I#'*#

The &r#ter#a for se5e&t#n' eBu#%ment and %#%#n' meta55ur' for th#s %ro*e&t are =ased on

L#&ensors e?tens#ve e?%er#en&e 9#th hdro3%ro&ess#n' te&hno5o'#es" and the 'enera5 %ra&t#&esof the ref#n#n' #ndustr.

The %r#mar o=*e&t#ve #n mater#a5 se5e&t#on #s to %revent fa#5ure resu5t#n' from env#ronment"

norma5 o%erat#on" and u%set &ond#t#ons. The mater#a5 se5e&t#on for th#s %ur%ose #s =ased on

me&han#&a5 des#'n &ond#t#ons.

The se&ondar o=*e&t#ve #s to %rov#de adeBuate %rote&t#on a'a#nst the 'radua5 mater#a5 5oss =

&orros#on" to a&h#eve the tar'eted des#'n 5#fe. ,Bu#%ment or %#%#n' norma5 o%erat#n'&ond#t#ons are used for se5e&t#n' the a%%ro%r#ate meta55ur' for a tar'eted des#'n 5#fe.Therefore" the se5e&ted mater#a5 for a '#ven serv#&e shou5d sat#sf =oth the o=*e&t#ves ofmeta55ur'#&a5 sta=#5#t" and des#'n 5#fe.

6. R((#"*# %' ("'*"! % #'*#

"? )*2(# D*# L*%

The fo55o9#n' des#'n 5#fe ma =e a%%5#ed to the des#'n of the un#t as a

standard =ase>eav 9a55 rea&tors + vesse5s 0 ears

#n&5ud#n' non remova=5e #nterna5s and &ata5st =ed su%%ort =eams8

Rea&tor remova=5e #nterna5s 20 ears

Co5umns" vesse5s 20 ears

>eat e?&han'ers she55 and s#m#5ar serv#&es 20 ears

>#'h a55o e?&han'er tu=e =und5es 10 ears

/urna&e tu=es 10 1ears

$#%#n' 10 1ears

$ro*e&t Name



5/6Rev#s#on

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26/62

Car=on stee5 + 5o9 a55o heat e?&han'er tu=e =und5es 10 ears

? C''*# "!!


27/62

For Carbon Steel and Low Alloyed Steel (up to 9 % Cr included):

Minimum corrosion

allowance (CA)

Axens standard

recommendation

Client request

Removable internals

On each exposedsurface: of totalCA applied to vessel

shell

Agreed

ixed internals and

structural supportbeams (!)

On each exposedsurface: full CA

applied to vessel shell

Agreed

(!) i"e" Catal#st bed support beams and distributor $ %uench tra#s support beamsof reactor

In 'enera5" no &orros#on a55o9an&e 9#55 =e '#ven for remova=5e #nterna5s made of sta#n5ess

stee5 1 Cr and a=ove8 as a5so for those made of non3ferrous h#'h a55oed. >o9ever" a&orros#on a55o9an&e sha55 =e s%ef#ed for some #nterna5s e?%osed to severe &ond#t#ons su&has non remova=5e #nterna5s of rea&tor" &ata5st =ed su%%ort =eams of rea&tor. These #nterna5ssha55 therefore have the CA" =ased on the rea&tor des#'n 5#fe s%ef#ed #n %ara'ra%hV,Bu#%ment es#'n L#fe" on ea&h e?%osed surfa&e.

No &orros#on #s &ons#dered for #nterna5s made 9#th E 9#re s&reen or 9#re mesh.

***? P' P*2*#

/or un#form &orros#on" &orros#on a55o9an&e for %#%#n' &an =e d#str#=uted as fo55o9s

)=2 '" C''*# "!!


28/62

Moderate53&orros#ve env#ronment 1+ mm8

Sour Fater" Fet Sour )as" Am#nes

Caust#&s" et&.

Severe53&orros#ve env#ronment 1+4 6mm8

Aerated 9ater" >ot su5fur or su5f#de260C8" 9et sa5ts" 9et C2

am=#ent tem%erature8" >ot steam 40C8"

et&.

'ote: Ecept for specific cases or following owner requirements it is the !icensor*s generalpractice to specif a minimum corrosion allowance of ,&$ "&$mm on the stainless steel madepiping components&

? M*#*(( D*# M"! T(2'"' >MDMT?

MMT %arameter sha55 =e def#ned dur#n' mater#a5 des#'n #n order to se5e&t mater#a5s &a%a=5e of

res#st#n' =r#tt5e fra&ture at the sa#d M#n#mum es#'n Meta5 Tem%erature. Th#s #s %ure5 ame&han#&a5 des#'n reBu#rement no &orros#on &on&ern8.

Three d#fferent &r#ter#a ma =e used to esta=5#sh the m#n#mum des#'n tem%erature

It ma =e =ased on &ons#derat#on of the 5o9est e?%e&ted o%erat#n' tem%erature" the 5o9est

am=#ent tem%erature or an o%erat#ona5 u%set su&h as auto3refr#'erat#on" or an !#nd of othersour&e of 5o9 tem%erature. A trans#ent &ond#t#on su&h as auto3refr#'erat#on ma =e 'overn#n'"%art#&u5ar5 #f the restart#n' %ro&edure does not %erm#t 9arm3u% =efore re3%ressur#s#n'.

It ma =e esta=5#shed as the m#n#mum e?em%t#on tem%erature a55o9ed = the a%%5#&a=5e

en'#neer#n' &ode. /or e?am%5e" the ASM, (13 %#%#n' &ode %erm#ts most &ar=on stee5%#%#n' 9#th 9a55 th#&!ness of 12.7mm or 5ess to =e e?em%t from #m%a&t test#n' #f used at

tem%erature not &o5der than D2-o

C.

If the mater#a5 of &onstru&t#on #s #m%a&t tested" the M#n#mum es#'n Tem%erature #s usua55

ta!en to =e the sa#d #m%a&t test tem%erature 9h#&h #s" for e?am%5e" the &ase for >T rea&tor8.The #m%a&t test &ond#t#ons =e#n' def#ned as a fun&t#on of the stee5 'rade. M#n#mum es#'nMeta5 Tem%erature for rea&tors &om%onents #s usua55 s%ef#ed as D 0oC or D 1oCde%end#n' on stee5 'rade &ons#dered8 un5ess %ro&ess &ond#t#ons and+or o9ner reBu#rementd#&tate a 5o9er tem%erature

In the same manner" su#ta=5e measures sha55 =e ta!en #n res%e&t of the 9ater tem%erature dur#n'the hdrostat#& test to avo#d an =r#tt5e fra&ture.

? T(2'"' )('*!(#

Lo9 a55o stee5 su&h as 2.2Cr D 1Mo" 2.2Cr D 1 Mo D E and Cr D 1 Mo D E are sus&e%t#=5e totem%er em=r#tt5ement 9hen o%erated #n the tem%erature ran'e of t%#&a55 00 D 0oC #.e.hdrotreaters or hdro&ra&!ers8.

;nder su&h o%erat#n' &ond#t#ons" em=r#tt5ement %henomena ma a%%ear #n &onne&t#on 9#th the=ehav#our of Cr3Mo stee5s after 5on' term serv#&e e?%osure.

Affe&ted mater#a5 &an sho9 a &ons#dera=5e redu&t#on #n tou'hness %ro%ert#es at am=#enttem%erature" and s%ea5 %re&aut#ons need therefore to =e ta!en to avo#d =r#tt5e fra&ture"es%ea55 dur#n' trans#ent %hases start3u%s and shut3do9ns8 and hdrau5#& %ressure tests.

Th#s ma#n5 a%%5#es to the &om%onents made from stee5 'rade s%ef#ed here a=ove for su&heBu#%ment as the rea&tors" assoated vesse5s and &erta#n >$ heat e?&han'ers. It #s stressed thattem%er em=r#tt5ement effe&ts are norma55 mu&h more moderate for 5o9er a55oed stee5s e.'.

1.2Cr30.Mo8.

#8 R'**# 8(*"! (2**#

$ro*e&t Name



:/6Rev#s#on

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29/62

Refer to se&t#on for s%ef#& re&ommendat#ons for the meta55ur' of the rea&tors

**? I#'" % '"#**# (2'"'

In add#t#on to the str#n'ent restr#&t#on of the &hem#&a5 &om%os#t#on" most users s%ef a sam%5edste% &oo5#n' of stee5s &ou%ons #ssued from mater#a5 used for fa=r#&at#on of she55 and headssus&e%t#=5e to Tem%er ,m=r#tt5ement. Ste% &oo5#n' treatment" #m%erat#ve5 %erformed after$F>T" 9#55 s#mu5ate a fra&t#on of the #n&rease #n the du&t#5#t3=r#tt5e trans#t#on that shou5d o&&ur

after 5on'3term serv#&e.

/or #nformat#on on5" a t%#&a5 ste% &oo5#n' seBuen&e &ou5d =e

>eat to - oC >o5d for 1 hour" &oo5 at 6 oC+h ma?. to 40 oC.

>eat to 40 oC >o5d for 1 hours" &oo5 at 6 oC+h ma?. to 2 oC

>eat to 2 oC >o5d for 24 hours" &oo5 at 6 oC+h ma?. to 4- oC

>eat to 4- oC >o5d for 60 hours" &oo5 at oC+h ma?. to 470 oC

>eat to 470 oC >o5d for 100 hours" &oo5 at 2 oC+h ma?. do9n to 1 oC and then A#r &oo5#n'.

Th#s s#mu5ated #sotherma5 em=r#tt5ement resu5ts #n a &erta#n #n&rease sh#ft8 of the mater#a5s

trans#t#on tem%erature. The #n&rease #n trans#t#on tem%erature TT8 from #ts or#'#na5 va5ue has=e&ome an a&&e%ted too5 for the determ#nat#on of tem%er em=r#tt5ement sus&e%t#=#5#t. In order to&hara&ter#se a mater#a5 for tem%er em=r#tt5ement res#stan&e" a re5at#onsh#% 9as deve5o%ed us#n'the or#'#na5 or Vas fa=r#&ated TTand the #n&rease #n TT] TT8.

After ste% &oo5#n' heat treatment for #m%a&t %ro%ert#es Char%3E at 1+4T and 1+2T mater#a5th#&!ness 8 shou5d meet the fo55o9#n' reBu#rements

TTP ]TTQ 10oC

Fhere TT the Wou5e trans#t#on tem%erature

]TT TT^ste% &oo5ed_ D TT^or#'#na5 va5ue_8

The method 'enera55 used to avo#d =r#tt5e fra&ture &ons#sts #n ma#nta#n#n' %ressure at a 5o9 5eve5unt#5 rea&tor vesse5 e?&eeds the M#n#mum $ressur#s#n' Tem%erature #n that 9a" resu5t#n'stresses are then redu&ed =e5o9 a stress va5ue 9h#&h &ou5d 5ead to =r#tt5e fra&ture %ro%a'at#on8.Th#s M$T ta!es #nto a&&ount the TT est#mated for the em=r#tt5ed &ond#t#ons and a safet mar'#n9h#&h ma#n5 ta!es #nto a&&ount the effe&t of hdro'en a=sor=ed dur#n' o%erat#on effe&tde%end#n' on 9a55 th#&!ness" stee5 Bua5#t and %ro&ess &ond#t#ons" #t #s the vesse5 vendorres%ons#=#5#t to 'uarant the M$T va5ues for the &ons#dered eBu#%ment8.

(e5o9 the M$T" the %ressure shou5d =e !e%t not e?&eed#n' 2 of the des#'n %ressure foreBu#%ment =u#5t %er ASM, Code Se&t#on EIII" #v. 2 some o9ners ma a55o9 h#'her va5ue foreBu#%ment =u#5t %er ASM, Code Se&t#on EIII" #v.1 &ons#der#n' the h#'her safet fa&tor ona55o9a=5e stress va5ues #n that &ase8. An 9a" the M$T &r#ter#a for >$ Rea&tors shou5d a59as =e'#ven or a%%roved = vesse5 vendor.

? S"*!**# @" T'"(#

Austen#t#& sta#n5ess stee5 &an =e&ome sens#t#sed after %ro5on'ed e?%osure at e5evatedtem%eratures #n the ran'e of 42 D 0 oC 00 D 1600o/8. Th#s stru&tura5 transformat#on dur#n'5on' term serv#&e at e5evated tem%erature #s due to a %re%#tat#on of &hrom#um &ar=#des'enera55 Cr2C68. In fa&t" th#s %re%#tat#on at the 'ra#n =oundar#es does not affe&t the me&han#&a5%ro%ert#es. n the other hand" #t #nvo5ves sens#t#s#n' to #nter'ranu5ar &orros#on refer toV$o5th#on#& ads8.

A5thou'h sta=#5#sed t%es of sta#n5ess stee5s su&h as 21" 47 and 16T#8 have a mu&h h#'herres#stan&e to9ards sens#t#sat#on than the non3sta=#5#sed ones" 5#terature #nd#&ates that the#r

res#stan&e &an =e further #m%roved = sta=#5#s#n' heat treatment around -00 C8 of the so5#d SS

#nd#v#dua5 &om%onents. Th#s %ro&edure en&oura'es the format#on of sta=5e &ar=#des" formed

e#ther from T#tan#um for T%es 21 and 16 T# or from N#o=#um+Co5um=#um for T%es 47" 9#thout&hrom#um de%5et#on.

$ro*e&t Name



9/6Rev#s#on

00

,$ Ident. No. 1-072-21.do& er#ved from )/A 07, Issue 04 "0.10.1-- Issue Rev. " Sheet 2- of 6


30/62

Therefore su&h sta=#5#sat#on heat treatment #s re&ommended for the furna&e tu=es. In add#t#on #t&ou5d even =e deded to a%%5 su&h heat treatment a5so for the hottest %arts of8 the sta#n5essstee5 %#%#n' des%#te #ts o%erat#n' tem%erature rema#ns some9hat 5o9er.

Note that no f#ssur#n' &orros#on e?%er#en&es have =een re%orted to L#&ensor 9hen us#n' over5a#d47 SS refer to $o5th#on#& Ad Atta&! here after8.

%? M"!!' S!*# G* D*#

The var#ous modes of ma#n &orros#on &on&erns that are s%ef#& to ref#ner hdro3treat#n' un#tsare e?%osed and d#s&ussed #n the fo55o9#n'.

*? @*8 T(2'"' @A"$

In serv#&es &onta#n#n' hdro'en" mater#a5s are se5e&ted =ased on the#r res#stan&e to h#'h

tem%erature hdro'en atta&!. >dro'en atta&! &an o&&ur at tem%erature a=ove a=out 220C.

#sso5ved hdro'en &an rea&t 9#th #ron &ar=#des 'enerat#n' methane 'as C> 48 9h#&h #s tra%%ed#nto the meta5. As the &on&entrat#on of methane 'as #n&reases" #n&reas#n' %ressure =e'#ns to tearthe 'ra#n =oundar" &aus#n' f#ssures and then &ra&!s. S#mu5taneous5" the 5oss of &ar=#des 5o9ersthe stren'th of the meta5.

Mater#a5 re&ommendat#on #s =ased on the Ne5son &urves refer to A$I R$ -41 VStee5s for

>dro'en Serv#&e at ,5evated Tem%eratures and $ressures #n $etro5eum Ref#ner#es and$etro&hem#&a5 $5ants8 for hdro'en res#stan&e. The mater#a5 #s se5e&ted =ased on the ma?#mumo%erat#n' tem%erature" and hdro'en %art#a5 %ressure" 9#th a%%ro%r#ate a55o9an&e added to ea&hof the var#a=5es to a&&ount for var#ous o%erat#n' modes.

As the f#'ures &ons#dered #n A$I R$ -41 are =ased 5ar'e5 u%on em%#r#&a5 e?%er#en&e" safet

mar'#n of 2C 0/8 and .4 =ar 0 %s#8 =e5o9 the re5evant &urves res%e&t#ve5 for ma?#mum

o%erat#n' tem%erature and ma?#mum o%erat#n' hdro'en %art#a5 %ressure8 are t%#&a55 used 9hense5e&t#n' stee5s.

'otes:

.he (/.) values for 'elson 0urves application shall not be compared with the 1echanical Design/ressure and .emperature which are used for mechanical calculation&

2f the temperature and pressure fall on one of the curves then the higher allo shall be used&

There #s no &red#t ta!en for a &orros#on res#stant sta#n5ess stee5 &5add#n'" s#n&e hdro'en &an st#55d#ffuse throu'h the &5add#n'. Fhere a55o &5add#n' #s used" the =ase meta5 sha55 &onseBuent5 =ese5e&ted for >2Serv#&e.

**? @*8 T(2'"' @/@S C''*#

The &ho#&e of mater#a5 for serv#&es &onta#n#n' > 2S #n hdro'en r#&h env#ronment #s =ased on thea&&e%ta=5e &orros#on rate" to o=ta#n the des#red eBu#%ment 5#fe. At tem%eratures h#'her than

200C" the &orros#on rate #s est#mated as a fun&t#on of tem%erature and >2S %art#a5 %ressure for

the se5e&ted mater#a5. The &orros#on rate &urves for the var#ous meta55ur' #s =ased on theor#'#na5 NAC, data Cou%er )orman &urves8" and th#s #s &ons#dered to %rov#de a des#ra=5ede'ree of &onservat#sm #n the des#'n.

***? @*8 T(2'"' S!28* C''*# *# @ F' )#;*'#(#

The &orros#on rate for serv#&es &onta#n#n' or'an#& su5%hur at tem%eratures a=ove 260C #n

hdro'en free env#ronments &ons#dered to =e 9#th %%>2Q 0 %s#a8 #s o=ta#ned from &urves =asedon the or#'#na5 NAC, and A$I data.

The est#mated &orros#on rates ma =e o=ta#ned" = us#n' the M& Conom &urves" as a fun&t#on ofnorma5 o%erat#n' tem%erature and or'an#& su5%hur &ontent.

*;? N"288#* A* C''*#

Na%hthen#& ad #s the &o55e&t#ve name '#ven to the or'an#& ads &onta#ned #n some &rude o#5s.

The na%hthen#& ad &ontent of the ra9 feed #s 'enera55 e?%ressed as neutra5#sat#on num=er" asdeterm#ned = ASTM test methods 664 or -74.

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It &an &ause &orros#on at tem%eratures as 5o9 as 17 C 0/8. >o9ever" ser#ous &orros#on"

%#tt#n' and+or 'roov#n' t%e" usua55 does not o&&ur unt#5 the tem%erature e?&eeds 20C 40/8.

T%e 16L or 17 L SS SS &onta#n#n' at 5east 2" 9t. of mo5=denum8 shou5d =e used 9hen

neutra5#sat#on num=er e?&eeds 1. m' K>+' o#5 for o%erat#n' tem%eratures a=ove 20C.

T%e 17 =e#n' %referred for severe &om=#nat#ons of TAN Tota5 Ad Num=er8" Tem%erature" andve5ot+tur=u5en&e" s#n&e the mo5=denum &ontent of th#s 'rade ran'es from .0 to 4.0 9t. .

Car=on stee5 meta55ur' #s &ons#dered to =e suff#ent for eBu#%ment and %#%#n' for Tota5 Ad

Num=er TAN Q 1. m' K>+' and tem%eratures =e5o9 20 C. /or a55 other &ond#t#ons sta#n5ess

stee5 s%ef#&at#on sha55 =e &ons#dered.

;? @S C''*#

Fet sour serv#&es are &ommon #n the hdro&ar=on %rodun' and %ro&ess#n' #ndustr#es. Thema*or &on&ern for su&h serv#&es #s the var#ous forms of hdro'en &ra&!#n' %rodu&ed = 9ethdro'en su5%h#de &orros#on.

As a matter of fa&t" >2S d#ssoat#on #n %resen&e of free 9ater 5eads to atom#& hdro'en format#on%art#&u5ar58 #n the &o5d %art of the rea&t#on se&t#on after the 9ash#n' 9ater #n*e&t#on #n the rea&toreff5uent" >2S am#ne a=sor=ers and str#%%ers overhead eBu#%ment are &on&erned8" and &an &ausethe fo55o9#n'

Su5%h#de Stress Corros#on Cra&!#n' SSCC8

>dro'en =5#ster#n'" >dro'en Indu&ed Cra&!#n' >IC8" Stress r#ented >dro'en Indu&ed

Cra&!#n' S>IC8.

The sus&e%t#=#5#t of deter#orat#on = the a=ove ment#oned r#s!s are 5o9ered" = s%ef#n' thefo55o9#n' for the &ar=on stee5 meta55ur'

ef#n#t#on of d#fferent t%es of assoated s%ef#&at#ons

T%#&a5 A%%5#&a=5e o&uments

3 Mater#a5 reBu#rements for Su5f#de Stress Corros#on Cra&!#n' Res#stant Meta55#&Mater#a5 as %er NAC) S"#"' MR 01-75" 5atest ed#t#on.

3 Mater#a5s and /a=r#&at#on $ra&t#&es for Ne9 $ressure Eesse5s ;sed #n 9et >2SRef#ner Serv#&e as %er NAC) I#'#"*#"! P!*"*# :194.

3 Methods and Contro5 to $revent In3Serv#&e ,nv#ronmenta5 Cra&!#n' of Car=on Stee5Fe5dments #n Corros#ve $etro5eum Ref#n#n' env#ronments as %er NAC) S"#"'RP047" 5atest ed#t#on.

L#&ensors 'enera5 re&ommendat#ons for &ar=on stee5 #n V>2S Serv#&e.

Car=on stee5 must =e /u55 K#55ed Car=on Stee5 t%e

Ma?#mum A55o9a=5e >ardness 22 >RC

N# &ontent 5ess than 1

Car=on &ontent sha55 =e 0.20 ma?#mum

$5ate mater#a5 sha55 =e su%%5#ed #n Norma5#sed &ond#t#on" re'ard5ess of th#&!ness

T%#&a5 5#m#tat#on of Car=on ,Bu#va5ent are the fo55o9#n'

3 CeB Q 0.42 for %5ate 5ess than 2 th#&!

3 CeB Q 0.4 for %5ate from 2 th#&! to 4 th#&!

3 CeB Q 0.4 for %5ates 'reater than 4 th#&!F#th CeB CPMn+6 P CrPMo P E8+ P N# P Cu8+1

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.hese 0eq values are indicative and ma be re-considered if needed regarding theused steel grade& 2n that case new proposed values should be submitted to E/0 forapproval&

Therma5 Stress Re5#ev#n' reBu#red for a55 9e5ds $F>T8 and+or for &o5d =end @one" even #f#t #s not reBu#red = &ode.

T%#&a5 re&ommendat#ons for $ro&ess $#%#n' and a&&essor#es #n V>2S serv#&e

3 $ro&ess %#%#n' sha55 =e seam5ess t%e %#%#n'

- /iping and accessories:

Re&ommended Ma?#mum a55o9a=5e $hos%horus &ontent 0.00

Re&ommended Ma?#mum a55o9a=5e su5%hur &ontent 0.020

An a&&e%ta=5e des#'nat#on #s ASTM A3106 )r.( a%%5#&a=5e a5so for vesse5sno@@5es as ASM, SA31063(8

- 3langes and accessories:

Re&ommended Ma?#mum a55o9a=5e %hos%horus &ontent 0.00

Re&ommended Ma?#mum a55o9a=5e Su5%hur &ontent 0.02

An a&&e%ta=5e des#'nat#on #s ASTM A310 for for'#n' and ASTM A3216 FC(for &ast#n's a%%5#&a=5e a5so for vesse5s f5an'es as ASM, SA3108.

.hese impurities level criteria are given for information the final specification concerning the /4 5 impurities contents will be decided b the E/0 (based on the owner specification if an)following its tpical practice for 6/iping in 5our 5ervice7&

L#&ensors re&ommendat#ons for Car=on Stee5 $5ates V>IC res#stant

The most #m%ortant fa&tor to avo#d >IC #s the %ur#t &5ean5#ness8 of the stee5. The non3meta55#& #n&5us#ons must =e ver 5o9.

In add#t#on to the 'enera5 re&ommendat#ons re5at#ve to V>2S Serv#&e" 9hen V>IC res#stantstee5 #s s%ef#ed" the fo55o9#n' reBu#rements shou5d a5so =e met.

/lates for /ressure /arts of the 8essels:

Car=on stee5 made = va&uum de'ass#n' %ro&ess

?'en &ontent 5ess than 0.002

Ma?#mum a55o9a=5e $hos%horus &ontent 0.00

Ma?#mum a55o9a=5e Su5%hur &ontent 0.002 0.007 #f #n&5us#on sha%e&ontro55ed = &a5um treatment8

Ca5um treatment" #f an" sha55 =e Ca+S rat#o 1.2

It #s reBu#red to %ass the NAC, standard TM 024 ,va5uat#on of $#%e5#ne and$ressure Eesse5s Stee5s for Res#stan&e to >dro'en3Indu&ed Cra&!#n'8 =us#n' the ad#f#ed test so5ut#on s%ef#ed #n NAC, standard TM0177La=orator Test#n' of Meta5s for Res#stan&e to Su5f#de Stress Cra&!#n' andStress Corros#on Cra&!#n' #n >2S env#ronments8 9#th

Cra&! Len'th Rat#o CLR8

M#55 test re%orts sha55 #n&5ude the va5ues for the &ra&! 5en'th rat#o CLR8" &ra&!sens#t#v#t rat#o CSR8 and &ra&! th#&!ness rat#o CTR8 as def#ned #n NAC,standard TM30234 and a5so &ar=on eBu#va5ent C,8.

A %oss#=5e des#'nat#on #s ASTM A 16 'r60.

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'ote : .he use of a standard carbon steel grade with 55 cladding can be an alternative to620 resistant steels7 especiall for thick-wall vessels like cold / separator since it shouldinvolve onl a small cost premium over 620 resistant steel7 construction (the procurementcould even be sometime more eas)& .he resulting protection against corrosion would beenhanced provided that 55 solution would not lead to other kind of corrosion and9ordeterioration&

;*? A(*# S' C''*# C'"$*#

Am#ne so5ut#ons &an &ause %#tt#n' and stress &orros#on &ra&!#n' #n &ar=on stee5s.

Am#ne stress &orros#on &ra&!#n' &an atta&! non3stress3re5#eved CS %#%#n' and eBu#%ment. >en&e"stress re5#ev#n' $F>T8 #s re&ommended for a55 the 9e5ds and the &o5d formed %arts of CSeBu#%ment and %#%#n'" re'ard5ess of o%erat#n' tem%erature. A$I R$3-4 Avo#d#n' ,nv#ronmenta5Cra&!#n' #n Am#ne ;n#ts8 and the 'u#des from te&hn#&a5 &omm#ttee NAC, T3 316 9ou5d a%%5 tothese serv#&es for eBu#%ment and 5#nes.

K#55ed &ar=on stee5 #s usua55 &ons#dered as a&&e%ta=5e under am#nes o%erat#on 9hen f5u#dve5ot#es are 5#m#ted to a ma?#mum of 0.- m+s ft+s8 for r#&h am#ne and of 2.1 m+s 7 ft+s8 for 5eanam#ne.

n the other hand" #t #s re&ommended to s%ef t%e 16 sta#n5ess stee5 for tur=u5en&e and+or

f5ash @one and+or h#'h f5u#d ve5ot#es.

Note that #t #s 'enera55 %referred to use sta#n5ess stee5 as &5add#n' and not as so5#d form ona&&ount of %oss#=5e %resen&e of &h5or#des" h#'h5 dan'erous for SS" #n the f5u#d.

The re&ommendat#ons out5#ned for the 9et > 2 S &orros#on are a%%5#&a=5e for the am#ne serv#&e as9e55. In %art#&u5ar" >IC res#stant stee5s shou5d =e used for am#ne >2S a=sor=ers.

;**? A((#*( B*-S!28* C''*#

Fater #n*e&t#on u%stream of the rea&tor eff5uent &oo5ers #s reBu#red to %revent %5u''#n' from 9ater3so5u=5e ammon#um =#3su5%h#de sa5ts. The 9ater #n*e&t#on rate shou5d =e adeBuate for saturat#n'the va%our %hase" and to %rov#de a=out 2 e?&ess 9ater as 5#Bu#d %hase" at the &oo5ers #n5et.The 9ater #n*e&t#on rate shou5d a5so =e suff#ent to redu&e the sa5t &ontent of the sour 9ater to

5ess than 4 9t .

L#&ensor had s%ef#ed K#55ed CS meta55ur' for th#s serv#&e #n severa5 un#ts.

(ased on L#&ensors e?%er#en&e" K#55ed CS meta55ur' #s suff#ent for th#s serv#&e #f the sour 9atersa5t &ontent #s ma#nta#ned at 5ess than 4 9t " and the tota5 f5u#d ve5ot #s !e%t #n the ran'e of to 6 m+s. A5so" #t #s #m%ortant to &ontro5 the 9ash 9ater Bua5#t as re&ommended = L#&ensor"es%ea55 the o?'en 5ess than 1 %%=98 and &h5or#de 5ess than 0 %%m98 &ontent to m#n#m#se&orros#on.

;***? P!8*#* A* A"$

Fhere austen#t#& sta#n5ess stee5s have =een se5e&ted" &hem#&a55 sta=#5#sed t%es 21 SS and47 SS8 are reBu#red for %ro&esses #n 9h#&h the norma5 ma?#mum susta#ned o%erat#n'

tem%erature e?&eeds 42 C" =e&ause of the#r h#'her res#stan&e to #nter'ranu5ar &orros#on andstress &orros#on &ra&!#n' &aused = %o5th#on#& ad atta&!. Th#s !#nd of atta&! &an o&&ur"es%ea55 dur#n' the shutdo9n %er#ods as a resu5t of sens#t#sat#on dur#n' serv#&e.

As a matter of fa&t" on&e o%ened to the atmos%here" the assoat#on of #ron su5%h#des %rodu&eddur#n' o%erat#on and a#r+mo#sture 5eads to format#on of %o5th#on#& ads > 2S?6 . The resu5t#n'ad &orros#on 5eads to the format#on of #nter'ranu5ar &ra&!s" t%#&a5 of %o5th#on#& SCC &orros#onma#n5 #nto >eat Affe&ted Jone8.

It #s therefore stron'5 re&ommended to %ass#vate the un#t =efore &onta&t#n' the eBu#%ment 9#thatmos%here. The NAC, Standard R$ 0170 shou5d a5so =e fo55o9ed as a 'u#de5#ne to &arr out thesoda ash 9ash#n' of a55 the @ones to =e #n &onta&t 9#th atmos%here after shut3do9n. Th#s%ro&edure #s re&ommended #n a55 the &ases" even #n the &ase of sta=#5#@ed SS use.

(ased on L#&ensors e?%er#en&e" 47 SS sho9s a =etter res#stan&e to sens#t#sat#on than 21 SS"and #s re&ommended for severe serv#&es.

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>o9ever for ma?#mum res#stan&e to sens#t#sat#on" t%es 21 and 47 SS shou5d =e su=*e&ted to asta=#5#s#n' heat treatment.

*=? C8!'* A"$

ABueous &h5or#des %rov#de an e?&e55ent e5e&tro5t#& env#ronment for &orros#on.

Austen#t#& sta#n5ess stee5s are 9e55 !no9n for the#r sus&e%t#=#5#t to fa#5ure = &h5or#de stress

&orros#on &ra&!#n' CSCC8.

Th#s %henomenon ma a%%ear under a5most an set of r&umstan&es re5at#ve to the fo55o9#n'&r#t#&a5 var#a=5es

Tem%erature CSCC #s v#rtua55 un!no9n for neutra5 %> so5ut#ons at tem%erature =e5o9 60 C

140/8.

Ch5or#de &on&entrat#on In eva5uat#n' the r#s!s for CSCC" &ons#der &on&entrat#on

me&han#sms su&h as eva%orat#on" 9h#&h &an #n&rease 5o9 &ontents to dan'erous 5eve5s. /orth#s reason" va%our35#Bu#d #nterfa&es and &rev#&es su&h as so&!et 9e5ds are to =e avo#ded.,ven tra&e of &h5or#de #nto 9ater #s suff#ent to #ndu&e stress &orros#on &ra&!#n'.

Stress Stresses are usua55 due to the res#dua5 tens#5e stress &aused = 9e5d#n' or &o5d 9or!

su&h as ;3(end#n' heat e?&han'er tu=es. Stress re5#ev#n' heat treatment #s a5so somet#mesused to redu&e &o5d form#n' or 9e5d#n' #ndu&ed res#dua5 stresses #n austen#t#& sta#n5ess stee5s.

In &onseBuen&e of the d#ff#&u5t#es to 'uarant the env#ronment state #n %resen&e of &h5or#de" CSCCres#stant a55os shou5d =e s%ef#ed 9here CSCC #s ant#%ated.

In&rease #n mo5=denum &ontent enhan&es res#stan&e of austen#t#& sta#n5ess stee5 to &h5or#deatta&! 17L 16 04" 218. Su%er austen#t#& sta#n5ess stee5 -04L8" or du%5e? a55o sta#n5essstee5" as a55o 220 22 Cr3. N#3 Mo3N+;NS S108 or h#'her n#&!e5 a55os t%es su&h as A55o400 and A55o 2 9h#&h are s#'n#f#&ant5 more res#stant to CSCC than austen#t#& 13 SS shou5da5so =e &ons#dered.

Notes

1onel which ma be specified where resistance to hdrochloric acid is required (top section

of the crude tower for eample) shall not be used when ammonia is inected for corrosioncontrol due to its high susceptibilit to stress corrosion cracking&

;ater used for flushing or during hdro-tests in presence of austenitic stainless steel materials

should tpicall have a chloride content of


35/62

Note

Sstems #n 9h#&h &ar=on stee5 &ou5d =e #n &onta&t 9#th &aust#& soda &arrover dur#n' u%setsshou5d =e stress re5#eved+%ost9e5d heat treated. If not %oss#=5e" th#s sstem shou5d =e made ofa%%ro%r#ated a55os as def#ned here a=ove.

7.0 P' C#'! "# I#'(#"*#7.1 ;n#t o%erat#ons sha55 =e &ontro55ed from a &entra5 &ontro5 room &ommon to other un#ts and sha55

=e a m#&ro%ro&essor =ased #str#=uted #'#ta5 Contro5 9#th Su%erv#sor &om%uter sstem. A55%ro&ess and %rodu&t streams sha55 =e measured and re&orded. Leve5 a5arms 9herever reBu#red sha55=e used. #a5 thermometers sha55 =e %rov#ded at #n5et and out5et of heat e?&han'ers. In &ase of ver&r#t#&a5 serv#&es hard9#red a5arms sha55 =e %rov#ded as stand = un#t.

/or Thermo&ou%5es #n Tem%erature Contro5 Loo%" &5osed 5oo% or &onne&ted to $LC" Tem%eratureTransm#tters sha55 =e used.

7. C#'! P8*!28

The %5ant sha55 =e o%erated throu'h E#deo Conso5es a5on' 9#th Conso5e %ane5 9#th fe9 ded#&ated

Instruments" Re&orders" Annun#&ators et&. and a Conso5e des! hav#n' se5e&tor s9#t&hes" %ush=uttons" status #nd#&ators. The f#e5d s9#t&hes" 9h#&h are reBu#red to =e tr#%5#&ated for th#s %ur%oseare sho9n on the $I #a'ram. The Inter5o&!s L)IC8 for the un#t sha55 =e %erformed #n $LC&a%a=5e of &ommun#&at#n' 9#th CS. 2 out of vot#n' 5o'#& #s env#sa'ed for &r#t#&a5 #nter5o&!son5.

7.3 I#'(#

A55 a5arm %o#nts" Soft9are and hard9#red to =e #nd#&ated #n $I 9#th %ro%er 5e'end as %er

ISA sm=o5.

A55 s%ef#&at#on data sheets sha55 =e as %er ISA.

/or se&ur#t #nter5o&!s transm#tters sha55 =e used as f#e5d #nstruments &onne&ted to Ana5o'

In%ut &ard of $LC d#re&t5. No s9#t&hes sha55 =e used.

/or tem%erature" /5o9 and #nterfa&e 5eve5 D Transm#tters sha55 =e used" S9#t&hes sha55 not =e

used.

N


36/62

Instrument #m%u5se 5#nes to =e #nsu5ated + tra&ed" 9herever reBu#red" to avo#d &ondensat#on +

&on'ea5#n'.

Cr#t#&a5 rotat#n' eBu#%ment to have v#=rat#on mon#tor#n' sstem 9#th &ontro5 room #nd#&at#on.

7.4 S"% "!;

ou=5e safet va5ves sha55 =e %rov#ded 9#th #so5at#on va5ves" su&h that on3stream #so5at#on and

ma#ntenan&e of a safet va5ve #s %oss#=5e 9#thout affe&t#n' un#t o%erat#ona5 safetreBu#rements. Th#s sha55 =e &ons#dered for a55 o%erat#on fa#5ure &ases 'u#ded or no3'u#ded8.Fhere safet va5ve %rov#s#on #s 'u#ded = f#re &ase" s#n'5e safet va5ve 9#th #so5at#on va5ve5o&!ed o%en8 sha55 =e %rov#ded. >o9ever" #n &ase of %rov#s#on of safet va5ve &ons#der#n' f#re&ase as 'overn#n' &ase and 9here su&h %rov#s#on #s a5so reBu#red from %ro&ess %o#nt of v#e9"stand3= safet va5ve #s to =e &ons#dered. A55 #so5at#on va5ves of %ressure safet va5ves sha55=e 5o&! o%en+&5ose t%e. The #so5at#on va5ves sha55 =e me&han#&a55 #nter5o&!ed 9here evert9o $SEs are %rov#ded.

$ressure re5#ef va5ves are norma55 #nsta55ed on the eBu#%ment.

$ressure re5#ef va5ves #n hdro&ar=on va%our serv#&e 9#55 norma55 d#s&har'e to a va%our

sstem.

A55 re5#ef va5ves 5oad and s#@e sha55 =e &a5&u5ated a&&ord#n' to the fo55o9#n' ment#oned &odes

3 A$I 20

3 A$I 21

3 A$I 26

3 A$I 27

3 A$I 2000

The s#@e of re5#ef va5ves are =ased on e#ther over3%ressure &ond#t#on" f#re e?%osure or va&uums#tuat#on for a %art#&u5ar sstem.

T%#&a5 over %ressure &ond#t#ons are

3 (5o&!ed #s&har'e

3 Inadvertent Ea5ve %en#n'

3 ;t#5#t /a#5ure

3 ,5e&tr#&a5 + Me&han#&a5 /a#5ure

3 Loss of A#r Coo5er /ans

3 Loss of >eat #n /ra&t#onat#on

3 Loss of Instrument A#r or ,5e&tr#& $o9er

3 Instrument /a#5ure or (5o93=

3 Ref5u? /a#5ure

3 A=norma5 >eat In%ut /rom Re=o#5ers

3 >eat ,?&han'er Tu=e /a#5ure

3 Tra%%ed L#Bu#d ,?%ans#on

The fo55o9#n' 'u#de5#nes sha55 =e a%%5#ed for safet va5ve se5e&t#on and 5#ne s#@#n'

3 Ea5ve se5e&t#on 9#55 =e =ased on ma?#mum o%erat#n' tem%erature and re5#ef va5veset %ressure.

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3 Convent#ona5 t%e re5#ef va5ves sha55 =e used for the &ases 9here the =u#5t3u% =a&!%ressure and the var#a=5e su%er#m%osed =a&!%ressure doesnt e?&eed 10 of theset %ressure. /or the &ases" 9here #t e?&eeds 10" =ut #s =e5o9 0 of the set%ressure" =a5an&ed =e55o9 t%e re5#ef va5ves sha55 =e used.

$#5ot o%erated re5#ef va5ves sha55 =e used for the sstems 9here ma?#mum set %o#nta&&ura& #s reBu#red. Su&h re5#ef va5ves sha55 =e #nsta55ed #n eBu#%ment" 9h#&ho%erate ver &5ose to the set %ressure.

3 Safet va5ves on &o5umn r&u#ts are %referred to =e 5o&ated at the h#'hest %o#nt #nthe overhead va%ors 5#nes.

3 $ressure dro% #n a $SE #n5et 5#ne must not e?&eed of the set %ressure of the$SE.

3 $SE #n5et and out5et 5#ne s#@e has to =e eBua5 or 'reater as the $SE no@@5e s#@es.

3 $SE d#s&har'e to =e free dra#n#n' to f5are header. $SE #n5et to =e free dra#n#n'to9ards the sour&e.

3 In5et and out5et va5ves to =e fu55 %ort.

3 Re5#ef va5ves" 9h#&h are sus&e%t#=5e to %5u''#n'" sha55 =e steam tra&ed and have aru%ture d#s& #nsta55ed under them.

3 Sta''ered %ressure sett#n' ma =e s%ef#ed to m#n#m#se 5osses.

3 /or atmos%her#& re5#ef" the o%en end of d#s&har'e 9#55 =e 5o&ated 0m from ansour&e of #'n#t#on. #s&har'e #s usua55 m h#'her than an eBu#%ment or manho5es5adder" %5atform et&.8 9#th#n 1m rad#us.

3 Re5#ev#n' dev#&e d#s&har'e 5#nes" sha55 =e s#@ed =ased on the =a&! %ressure data

3 The f5are header sha55 =e s#@ed a&&ord#n' to %ressure dro% &onstra#nts.

A55 dra#ns on safet va5ves 9herever %rov#ded8 sha55 =e &onne&ted to the C(. A55 safet

va5ves sha55 norma55 have &ar=on stee5 =od 9#th sta#n5ess stee5 tr#m. ther tr#m mater#a5 &an=e &ons#dered #f an %art#&u5ar serv#&e demands a d#fferent mater#a5. (ron@e or &ast #ron=od#ed va5ves sha55 not =e used.

7.5 C#'! "!;

As a defau5t" &ontro5 va5ves u%to s#@e and #n steam serv#&e sha55 =e %rov#ded 9#th a

man#fo5d of =5o&! and =%ass va5ves. (%ass va5ves sha55 =e '5o=e va5ves. /or &ontro5 va5vea=ove s#@e" =5o&! and =%ass reBu#rement sha55 =e deded on &ase to &ase =as#s.>o9ever" Contro5 va5ves not hav#n' =5o&! and =%ass %rov#s#on sha55 =e %rov#ded 9#thhand9hee5 for manua5 o%erat#on.

A55 &ontro5 va5ves shou5d have t9o #so5at#on va5ves and m#n one =%ass va5ve.

A55 &ontro5 va5ves sha55 =e %rov#ded 9#th +4 dra#n va5ves" 9h#&h &an =e %rov#ded as

;%stream and do9nstream of a55 &ontro5 va5ves

ra#n va5ve sha55 =e &a%%ed In non3hdro&ar=on non3I(R L$ steam serv#&e8

ra#n va5ve sha55 =e =5#nd f5an'e In a55 >dro&ar=on" to?#&+ha@ardous &hem#&a5s I(Rsteam serv#&e8

Shut do9n va5ves sha55 not =e %rov#ded 9#th =5o&! and =%ass va5ves.

The &ontro5 va5ve %ressure dro% shou5d =e the 'reater of the fo55o9#n' D

0 D 60 of the tota5 fr#&t#ona5 5oss e?&5ud#n' the &ontro5 va5ve

0.7 K'+&m2

1 of the %um% d#fferent#a5 head

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/or va5ves #nsta55ed #n e?treme5 5on' or h#'h %ressure dro% 5#nes" the %er&enta'e dro% a&ross&ontro5 va5ve ma =e 5o9er" =ut at 5east 1 u% to 2" 9here %oss#=5e" of the sstem fr#&t#ondro%.

The se5e&ted &ontro5 va5ve must a55o9 ma?#mum f5o9 throu'h #t at 0 o%en#n' ma?#mum8

and m#n#mum f5o9 at 1 to 20 o%en#n' m#n#mum.

Contro5 va5ves must =e eva5uated for f5ash#n' + &av#tat#on and &ho!ed f5o9 &ond#t#on =efore

se5e&t#on.

7.6 F!< I#*"*#

F' ("'*"! B"!"# "!! %!< *#*"*# 8! % (" %!< 2

A# 8' %!< *#'(# 8! 8"; 2'' "# (2'"' (2#"*#.

/5o9 #nd#&at#ons 9#th tota5#ser for the fo55o9#n' streams enter#n' + 5eav#n' the =atter 5#m#t sha55

=e ava#5a=5e #n the &ontro5 room over and a=ove those reBu#red for %ro&ess &ontro5 of the un#t

- A55 /eed to the un#t

- A55 $rodu&ts from the un#t

- /ue5 'as to the un#t

- >dro'en r#&h 'as to the un#t

- >dro'en for start3u%

- >dro'en to the un#t

- An other re5evant streams

/5o9 #nd#&at#ons 9#th tota5#ser for the fo55o9#n' ut#5#t streams sha55 =e ava#5a=5e #n the &ontro5

room

- >$+M>$ steam to+from the un#t

- M$ steam to and from the un#t

- L$ steam to and from the un#t

- Coo5#n' 9ater to the un#t

- Condensate from the un#t

- Condensate from other un#ts

- N#tro'en to the un#t

- (/F to the un#t

- $5ant A#r Instrument A#r to the ;n#t

- M Fater to the ;n#t

7.7 L;! I#'(#

Stand%#%es 9#th a defau5t s#@e of 2 N( sha55 =e &ons#dered for on5 &5ean" non3v#s&ous and

non3&rsta55#@#n' serv#&es. Stand%#%es sha55 =e used #f more than 4 vesse5s no@@5es areant#%ated for mount#n' a55 the 5eve5 #nstruments #n a '#ven serv#&e.

Stand%#%es =ottom ta%%#n' shou5d =e from s#de on5. Stand%#%e =ottom ta%%#n' not to have

an 5o9 %o&!et #n order to ensure free dra#n#n' of stand%#%e 5#Bu#d #nto the vesse5.

/or other &ases 5eve5 #nstruments sha5

overall_design basis (digboi)- process

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