phân xưởng hds
TRANSCRIPT
-
7/13/2019 Phn Xng HDS
1/33
n cng ngh I GVHD: TS.L Th Nh
2.7 Phn xng HDS
2.7.1 Tng quan vphn xng HDS
Chc nng ca phn xng:
- X l lu hunh cc phn on sn phm trung gian (bn sn phm) mbo hm lng S trong sn phm thng phm di mc tiu chun quy nh.
- X l lu hunh trong cc phn on l nguyn liu ca cc qu trnh chuynha, nhm trnh hin tng ng c xc tc, n mn thit b v m bo tiu chunhm lng S trong cc sn phm ca qu trnh chuyn ha. V d nh x l HDS cho
phn on DSV trc khi lm nguyn liucho phn xng FCC, x l tp cht bngHydro cho phn on xng nng v xng gim nht trc khi lm nguyn liu cho
phn xng reforming xc tc.
- c im ca phn xng HDS: do tnh cht ca cc phn xng HDS l lmvic vi cc ngun nguyn liu khc nhau, cc ngun nguyn liu khc nhau phic x l cc phn xng HDS khc nhau, do , trong qu trnh thit k, cn phim bo cc tiu ch: va tha mn tiu chun hm lng S trong sn phm, va m
bo ti u v nng lng v chi ph u t,tc l phi cn bng gia chi ph cho nnglng ca phn xng HDS v chi ph u t b tr thit b HDS ban u. X l cngnhiu ngun nguyn liu th chi ph u t thit b v din tch phn xng cng ln.
-Ngun nguyn liu ca phn xng HDS l cc phn on t cc qu trnh lctch vt l v cc qu trnh chuyn ha. Nguyn liu c th l cc phn onKerosene, Gasoil nh, Gasoil nng, cc sn phm ca qu trnh chuyn ha nh LCOt FCC, xng v gasoil gim nht,Do , v tr ca phn xng HDS c th cminh ha trong s sau:
iu kin tin hnh qu trnh: thay i ph thuc vo tnh cht ca nguyn liu,
phn ng mong mun, p sut thay i t 10 200 bar, nhit 250 450 oC. Ty vo
-
7/13/2019 Phn Xng HDS
2/33
n cng ngh I GVHD: TS.L Th Nh
hm lngS trong sn phm thng phm yu cu v hm lng S trong cc ngunphi liu c s khi khng x l lu hunh bng hydro, m ta c th s dng phnxng HDS vi cng sut khc nhau, c th x l 100% ngun phi liu c s hocmt phn nh. y, ta ch s dng phn xng HDS x l phn gasoil nh,gasoil nng t phn xng CDU v mt phn DV lm nguyn liu cho phn xng
FCC.
Xc tc ca qu trnh x l bng H2c hp thnh t cht mang -Al2O3vpha hot ng di dng sunfua Molipen hay Vonfram(W) c tng cng bi Ni,Co. Hm lng kim loi: 12-15%, cht tng cng 3-5%. Ty theo mc ch ca tngqu trnh m thnh phn ca cht xc tc s khc nhau:
- Co + Mo: mc ch chnh HDS
-Ni + Mo: mc ch chnh HDN, HDO, HDAr
-Ni + W: mc ch chnh HDN, HAD, HDOx2.7.2 Nguyn liu
Ta sdng 3 ngun nguyn liu c xl HDS l: LGO, HGO, LCO v VD.Ttnh ton trn Excel, lng ti u ca mi loi nguyn liu l: 50% LGO,60% GO, 55%LCO v 46% VD.
Cc sliu v4 loi nguyn liu trn c tng hp trong bng sau:Nguyn liu LGO HGO LCO VD
Ban u, kt/y 1231.467 1021.867 283.708 2084.427
Phn trm x l, % 50 55 80 46.0
Lng xl
kt/y 615.733 562.027 958.836 958.836
103m3/y 744.415 640.035 1037.517 1037.517
D, kt/y 615.733 459.840 56.742 1125.590
d154 0.827 0.878 0.961 0.924
%S0,wt 0.7833 1.977 2.0132.5054
Tf(0C) (theo ASTM) 300.929 366.783 374.000 524.827
SG 0.829 0.880 0.963 0.926
MW 224.525 285.051 201.570 416.146
IC 51.253 44.830 21.100 32.94
Cc tnh ton chi tit nh sau:
i vi phn on LGO (218-315oC)v HGO ( 315-385oC)
-
7/13/2019 Phn Xng HDS
3/33
n cng ngh I GVHD: TS.L Th Nh
Cc s liu v lu lng, t trng, hm lng lu hunh , ch s cetane, khi lngphn t c ly kt qu t phn xng CDU.
Nhit cui phn on ASTM c tnh theo cng thc Riazi Daubert
i vi phn on VDCc s liu v lu lng, khi lng mol, t trng, hm lng lu hunh , ch scetane c ly kt qu t phn xng CDU.
Nhit cui phn on ASTM c tnh theo cng thc Riazi Daubert a i vi phn on LCO
Nhit si cui phn on c ly theo Technip tp 1, khi lng phn t ca phnon LCO c ly theo bng tnh cht.
2.7.3 Tnh ton lng hydro tiu th
2.7.3.1 Lng H2khS
Lng H2kh S ph thuc vo iu kin tin hnh qu trnh, c th hn l hiusut chuyn ha ca qu trnh. T hiu sut chuyn ha ca qu trnh c gi thit,tra biu 1 trong phn HDS, ta c th tch H2tiu th ng vi 1% lu hunh b kh.
i vi LGOChn hiu sut kh S l 96,4%. Hm lng S ban u bng 0.78%, ta tnh c hmlng S cn li v hm lng S b kh:
%S (cn li) = (100-96,4).1,24 = 0.03%
%S (b kh) = 0,78-0,03 = 0,75%
T hiu sut chuyn ha ta tra c th tch H2tiu th ng vi 1% S b kh l13,5 Sm3/m3nguyn liu/1%S b kh. T , th tch H2tng ng trn 1 m
3nguynliu: 13,50x0.75= 10.19 (Sm3/m3 nguyn liu).
i vi HGO, LCO v VD, tng tnh i vi LGO, kt qucho bngsau:
Feed LGO HGO LCO VD
LHSV 2 2 1.5 2
Hiu sut kh S 96.4 96.4 98 96.4
%S ban u 0.78 1.98 2.01 2.51
%S cn li trong sn phm 0.03 0.07 0.04 0.09
% S b kh 0.76 1.91 1.97 2.42
T trng 0.83 0.88 0.96 0.92
-
7/13/2019 Phn Xng HDS
4/33
n cng ngh I GVHD: TS.L Th Nh
V H2tiu th / 1% S (Sm3H2/m
3charge) 13.50 14.20 15.34 14.90
V H2kh S (Sm3H2/m
3charge) 10.19 27.07 30.26 35.99
2. 7.3.2 Lng H2no ha Aromatic
Lng H2 no ha Aromatic tnh cho 1 m
3
nguyn liu c tra vo gin ,da vo im cui trn ng ASTM ca cc phn on. Kt qu cho bng sau:
Feed LGO HGO LCO VD
TF(oC) ( ASTM) 300.929 366.783 374.000 524.8
Lng H2no ha vng thm 6.500 8.900 9.000 13.9
2.7.3.3 Lng H2no ha olefin:
i vi cc phn on nh LGO, HGO v VD, v cc qu trnh trc khng
c mc ch l b gy mch phn t, do c th xem l hm lng olefin trong ccphn on ny bng 0, tc l khng cn H2no ha olefin.
i vi phn on LCO, Lng H2 no ha olefin tnh theo m3 nguyn liu
c tra t th, bng 15,46 m3/m3nguyn liu.
Nguyn liu LGO HGO LCO VDLng H2no ha olefin m / m charge 15,46
2.7.3.4 Tng lng H2tiu th:
Nh vy, lng H2tiu th tng cho mi loi nguyn liu bng lng H2kh S
v H2no ha aromatic, olefin.V d tnh cho trng hp LGO
Tng lng H2tiu thtrn 1 m3nguyn liu: 10.19+6.50+0 = 16.69 Lng H2tiu th: 16,69.744.415. 2/(22,4.1000) = 1,109 (kt/yr) Lng H2S to ra:34.615,733.0.76/(32.100)= 4.94 (kt/y)
Tnh ton tng t cho HGO, LCO v VD ta c bng sau:
Nguyn liu LGO HGO LCO VDTng H2tiu th m
3/m3charge 16.69 35.97 54.72 49.906
Tng H2tiu th 103.m3/y 12427.58039 23019.8 12923.3 51778.3318
Tng H2tiu th kt/y 1.109605392 2.05534 1.15386 4.62306534
% H2S to thnh 0.802338778 2.02522 2.09608 2.56616614
Hm lng H2S to thnh 4.940267301 11.3823 4.7574 24.6053316
2.4.4 Tnh ton lng kh v xng thu c
-
7/13/2019 Phn Xng HDS
5/33
n cng ngh I GVHD: TS.L Th Nh
Hiu sut thu kh: T %S b kh v phn t lng ca nguyn liu, tra thProcedes HDS, ta c hiu sut thu cc kh (so vi phn on kh):
Kh C1 C2 C3 i-C4 n-C4 i-C5 n-C5
Hiu sut (%) 14 18,5 20 8,5 13 15,5 10,5
V hiu sut thu phn on C1C5tra c t quan h ph thuc vo phn tlng ca nguyn liu v %S b kh. Ta c hiu sut thu phn on C 1C5ca miloi nguyn liu nh sau:
Tra th M-hiu sut thu C1-C5 KER GO LCO VDKhi lng phn
t 200 230 250 168.132 244.464 190.938 398.205
%S bkh
0.1620 0.0625 0.0625 0.05 0.0625
1.2009 0.43 0.385 0.345 0.3633
1.4550 0.5199 0.4639 0.4172 0.5368
2.374 0.8449 0.7491 0.678 0.2119
T ta tnh c hiu sut thu mi loi kh so vi nguyn liu, bng cchnhn hiu sut thu kh so vi phn on kh C1C5vi hiu sut thu phn on C1C5.
Hiu sut thu xng: T hm lng S b kh, tra th quan h gia %S b khvi hiu sut thu xng (80 150oC), ta c hiu sut thu xng 80 150oC, hiu sutthu xng tng s bng hiu sut thu xng 80 150oC cng vi hiu sut thu iC5vnC5.
Hiu sut thu xng 80 150oC c tra t phn trm S b kh
Tnh ton ta c bng hiu sut thu xng v kh i vi cc loi nguyn liu:Nguyn liu GO LCO VD
%S b kh 1.20Lu
lng
1.455Lu
lng
2.374Lu
lngHiu sut thu phn donC1- C5 %m
0.36 6.184 0.537 1.062 0.212 1.848
C1 0.05 0.866 0.075 0.149 0.030 0.259
C2 0.07 1.144 0.099 0.196 0.039 0.342
C3 0.07 1.237 0.107 0.212 0.042 0.370
iC4 0.03 0.526 0.046 0.090 0.018 0.157
nC4 0.05 0.804 0.070 0.138 0.028 0.240
iC5 0.06 0.959 0.083 0.165 0.033 0.286nC5 0.04 0.649 0.056 0.111 0.022 0.194
-
7/13/2019 Phn Xng HDS
6/33
n cng ngh I GVHD: TS.L Th Nh
Hiu sut thu xng 80-150oC
0.65 11.06 0.785 1.552 1.271 11.083
2.7.5 Sn phm chnh sau HDS Sau qu trnh HDS, bng cc kt qukinh nghim tra ttrang 411[3], ta c
c cc tnh cht ca sn phm khS. nht 50oC ca LGO gim i 0,3cSt v ca so vi LGO cha khS. Xem nh nhit chp chy ca cc sn
phm khng i. Ttrng VD v LGO gim i 0,012 v 0,043 n v([3]) vchscetane ca VD tng 10 n v; ca LGO tng 12 n v; ca GO tng 3n v(c lng). Ta c bng sau:
NG N NG VT HT HDS
HDS-LGO %wt m (kt/y) dV
(103m3/y) %S IC
H2 -0.180 -1.110
H2S 0.802 4.940
C2- 0.083 0.509
C3 0.051 0.313
C4 0.055 0.337
Xng 0.496 3.055
LGO kh S 98.693 607.688 0.814 746.41928 0.028 54.253
100.000 615.733 0.827 744.415
HDS-HGO %wt m (kt/y) dV
(103m3/y) %S IC
H2 -0.366 -2.055
H2S 2.025 11.382C2- 0.161 0.904
SN PHM KH S LGO HGO LCO
Lu lng, kt/y 607.69 543.68 219.08
d154, g/cm3 0.814 0.865 0.918
%S cn li trong sn phm 0.028 0.071 0.040IC 54.253 47.830 33.100
V50 2.200 6.500 2.490
Flash point (oC) 99.79 135.38
-
7/13/2019 Phn Xng HDS
7/33
n cng ngh I GVHD: TS.L Th Nh
C3 0.099 0.556
C4 0.106 0.598
Xng 1.239 6.962
HGO kh S 96.736 543.680 0.865 628.44565 0.071 47.830
100.000 562.027 0.878 640.035
HDS-LCO %m m (kt/y) dV
(103m3/y) %S IC
H2 -0.508 -1.154
H2S 2.096 4.757
C2- 0.249 0.565
C3 0.153 0.348
C4 0.165 0.374Xng 1.319 2.994
LCO kh 96.526 219.082 0.918 238.651 0.040 33.100
100.000 226.967 0.961 236.178
HDS VD %wt m (kt/yr) d V %S
H2 -0.482 -4.623
H2S 2.566 24.605
C2- 0.083 0.798C3 0.051 0.491
C4 0.055 0.528
Xng HDS 1.516 14.533
HDS VD 96.211 922.503 0.9122 1011.33 2.505
Feed 100.000 958.836 0.9242 1037.52 0.090
2.6 Phn xng cracking xc tc
2.6.1 Tng quan vphn xng FCC
Mc ch: chuyn ha cc phn on nng di tc dng ca cht xc tc,nhm tng hiu sut thu hi xng v LPG.
Nguyn liu: ngun nguyn liu in hnh l VD (Vacuum Distilate gasoilchn khng) vi im si u t 350-380oC v im si cui khong 550-560oC.
Ngoi ra, ngi ta cn c th trn cc ngun distillate nh ca chng ctkh quyn,qu trnh gim nht, cc ha, hoc cn chn khng tch asphalt (> 550oC) v t 10
50% khi lng cn chng ct kh quyn. Nguyn liu c t trng khong 0,9 0,98.
Sn phm:
-
7/13/2019 Phn Xng HDS
8/33
n cng ngh I GVHD: TS.L Th Nh
+ Fuel gas: 3 5% khi lng, gm C2-, H2S, ra ngc chiu bng DEA hayTEA loi b H2S.
+ Kh du m ha lng (LPG): 7 20% khi lng, lm nguyn liu cho ha du,phn on C4 giu iso-olefin dng sn xut MTBE v C4= lm nguyn liu cho phn
xng ankyl ha.+ Xng: 40 60% khi lng, c RON cao (9095) nhng nhy ln (khong
12).
+ LCO (Light Cycle Oil): khong phn on 220 380oC, chim 10 20% khilng, giu cc hp cht thm nn ch s cetane thp.
+ HCO (Heavy Cycle Oil): 380 550oC, chim 5 10% khi lng, nhiu hpcht thm a vng, ch yu phi liu cho FO.
+ Cn (Slury): > 550oC, chim t 5 20% khi lng, l sn phm rt nng dnghuyn ph cha nhng thnh phn nng nht cha chuyn ha v nhng ht rn nhcc ht xc tc b ko theo. Phn huyn ph rn c tch ra v phi trn FO.
+ Cc: chim t 3 7% khi lng, lm nhin liu t trc tip cung cp cho tonb qu trnh.
c im: hiu sut chuyn ha c tnh bng tng hiu sut thu kh, xng,cc, ph thuc vo loi nguyn liu. Nguyn liu c Kuopcng ln th chuyn hacng ln. nghim ngt ca qu trnh cng ln th hiu sut thu xng gim nhngxng thu c c RON ln.
2.6.2 Nguyn liu Nguyn liu l ngun VD cha qua HDS kt hp vi mt phn VD xl
HDS.
Bng c im nguyn liu FCC:Nguyn liu VD VD(HDS) Tng
Ban u,103t/yr 1125.59 922.50 2048.09%wt x l 96 82 89.69
Lngx l
103t/yr 1080.57 756.45 1837.02
103m3/yr 1169.24 829.29 1998.53
D , 103t/yr 45.02 166.05 211.07
d154 0.92 0.91 0.92SG 0.93 0.91 0.92
0API 21.31 23.32 22.13
KUOP 11.86 11.86%S 2.505 0.09 1.51
2.6.3 Tnh cn bng vt cht
-
7/13/2019 Phn Xng HDS
9/33
n cng ngh I GVHD: TS.L Th Nh
TAPI v Kuopca nguyn liu DSV ta tm c hiu sut chuyn ha theo thl 67.66 % thtch, hiu sut ny tnh bng tng hiu sut thu kh, xng,cc.
0API 22.13
KUOP 11.86
CONV,%vol 67.661
coke, %wt 6.0856
LCO, %vol 13.642
HCO+slurry,%vol 18.697 Tphn trm chuyn ha l 67.66% thtch v RON ca xng thu c chn
l 92, ta tra c hiu sut thu kh kh (C2-) l 6.9% khi lng.
Hiu sut thu (khi lng hay thtch) ca cc kh C2-, C3=, C3, C4=, i,nC4c tra theo hiu sut thu kh kh. Hiu sut thu xng (theo thtch) c tratheo RON ca xng, y ta chn RON = 92 th hiu sut thu xng l 56.195%thtch.
Hiu sut thu LCO (% thtch) c tra theo API v Kw ca nguyn liu, y ta tra c hiu sut thu LCO l 13,64% thtch. Hiu sut thu HCO +slurry bng:
%vol (HCO +Slury) = 100 - %vol (LCO)CONVConv,%vol 67.661
RON 92
Yields 10 RVP,%vol 56.195
Dry gas, %wt 6.9093
Vi Conv l hiu sut chuyn ha ca qu trnh, bng 67.66% th tch. Phn trm lu hunh trong cc phn on xng FCC, LCO, HCO + Slury c
tra theo phn trm S trong nguyn liu, vi %S nguyn liu l 1,51%. Ta cbng sau:
%wt %vol d154Yields(kt/y)
Yields(103m3/y)
C2- 1.636397 4.0294 0.3733 30.061 80.529
C3= 3.845586 6.7587 0.5230 70.644 135.075
C3 1.377328 2.4977 0.5069 25.302 49.916
C4= 2.81 4.3047 0.6010 51.704 86.030
iC4+nC4 5.87 9.4456 0.5710 107.789 188.773
GAS 15.54 27.04 0.52839 285.500 540.323
-
7/13/2019 Phn Xng HDS
10/33
n cng ngh I GVHD: TS.L Th Nh
Thnh phn %wt %vol d154Yields(kt/yr)
Yields(103m3/yr)
%S RON M 20
GAS 15.54 0.528 285.50
Xng 10 RVP 42.9 56.19 0.703 789.68 1123.07 0.12 92 104LCO 15.44 13.64 0.961 283.71 272.64 2.01 4.8 HCO+slurry
19.94 18.69 1.02 366.34 373.66 3.16
Cc 6.09 111.79
product 100 1837.02 1998.53 1.51
2.6.4 n nh p sut hi bo ha ca xng F Da theo ti liu thc nghim, ta c p sut hi RVP ca xng thu c (cha
kC4ha tan) l 0,6898 bars tng ng vi p sut thc l 0,6898bar. Trong
khi , thc txng thu c l xng 10 RVP.
Do , cn phi n nh p sut hi bo ha cho xng FCC, tc l kn vicha trn thm C4vo t c xng 10 RVP. Theo thc nghim, cthm1% khi lngC4vo th p sut tng ln 50 mbars. Do vy, phn trm thtchC4cn thm vo:
%C4(thm vo) =689.6 330
7,19%50
(so vi xng)
Khi lngC4thm vo so vi nguyn liu:%C4(thm vo) = 7,19.56,195 = 3,09% (so vi nguyn liu VD)
T, ta tnh li lng C4=, i,nC4cn li : %C4 = 5,87-3,09 = 2,78%RVP mbar
Xng FCC 10RVP 689.6Xng thc t 330
%wt C4thm 7.19
2.6.5 Bng cn bng chung FCC
Sau khi n nh p sut hi bo ha thc TVV ca xng FCC, ta xc nh licn bng vt cht nh sau:
Bng cn bng vt phn on kh cht phn xng FCC
%wt %vol d154Nng sut m
(kt/y)
Nng sut V
(103
m3
/y)C2- 1.636397 4.0294 0.3733 30.061 80.53
-
7/13/2019 Phn Xng HDS
11/33
n cng ngh I GVHD: TS.L Th Nh
C3= 3.845586 6.7587 0.5230 70.644 135.07
C3 1.377328 2.4977 0.5069 25.302 49.92
C4= 2.814557 4.3047 0.6010 51.704 86.03
iC4+nC4 2.78 4.4687 0.5710 50.995 89.31
Gas 12.45 22.059 0.519 228.706 440.86
c im cc sn phm c ly t thc nghim: Bng c im cc phn on sn phm ca FCC
Thnhphn
%wt %vol d154 (kt/y) 103m3/y %S RON
RVPmbar
M 2010
0IC
GAS 12.45 22.05 0.519 228.71 440.86 689.6
Xng 46.08 0.692 846.48 1222.54 0.12 92 104
LCO 15.44 13.64 0.961 283.71 272.64 2.01 4.5 1.22
HCO+slurry 19.94
18.697 1.02 366.34 373.66 3.16 7
Coke 6.09 111.79produ
cts 100.001837.0
2
2.5 Phn xng reforming xc tc
2.5.1 Tng quan vphn xng CCR Mc ch: nhm bin i thnh phn ca cc phn on nh xng c snguyn
tcacbon t6 n 10, m chyu l C7n C9. Trong hydrocacbon bbini l paraffine, naphten vi sc mt ca xc tc, to thnh cc hydrocacbonthm c snguyn tCacbon tng ng.
Nguyn liu in hnh l phn on xng nng ca qu trnh chng ct trctip, ngoi ra cn phi trn thm xng gim nht.
Sn phm: Kh H2: (24% khi lng) vi mt lng nhhi lu ti sinh cn mt
lng ln dng cho cc qu trnh HDT, HDC. Kh H2y r, chbng1/101/15 so vi H2thu c tphng php iu ch.
Kh kh: (1-4% khi lng): l kh t cung cp nng lng cho nh my. LPG: (5-14% khi lng).
Reformate : t8090% khi lng, c RON cao (98100), nhng cnhc im l nhy v hm lng aromatic ln, c bit l hm lng
-
7/13/2019 Phn Xng HDS
12/33
n cng ngh I GVHD: TS.L Th Nh
benzene cao. Do , ngun xng ny khng c sdng trc tip m phitrn vi cc loi khc to xng thng phm.
c im: Vi cng nguyn liu, nu tng nghim ngt ca qu trnh thhiu sut thu xng gim, hiu sut thu kh tng, nhng b li RON ca xng
cao. Mt khc, vi cng nghim ngt, nguyn liu c Kwcng ln th hiusut thu xng cng gim.
2.5.2 Nguyn liu Ton bxng nng tchng ct kh quyn v xng gim nht c a qua
phn xng CCR. Cc c im vnguyn liu c cho di y:
Nguyn liu HN Gasoline(VB) Tng
wt,103t/yr 1111.73 47.33 2033.08
% x l 100 100 57.01
Nguyn liux l
103 t/yr 1111.7333 1159.0626 1159
103m3/yr 1497.72 1560.99 1560
D, 103t/yr 0.00 0.00 874.02
d154 0.742 0.748 0.7430API 58.75 57.29 58.69
KUOP 12.0912.09
Tmav 130.87
2.5.3 Tnh cn bng vt cht
Hiu sut thu kh H2c tnh theo cng thc: 2% 4,9 0,2. 2,482 %wwt H K wt
Ta chn RON cho reformate thu c bng 99, khi da vo th, ta trac hiu sut thu reformate (% thtch) theo Kwca nguyn liu v RON thuc. Gi trny bng 76 % thtch.
Hiu sut thu kh C1, C2, C3, i,nC4(% khi lng) tra theo hiu sut thu xng. Gi trp sut hi bo ha RVP ca reformate c ly theo thc nghim. Gi
trny bng 0,3 bar.
Ta c bng cn bng vt cht cho phn xng CCR:Bng cn bng vt cht phn xng CR:
Sn phm %wt %vol m, 103t/yr v,103m3/yr d154 RON RVP,bar
-
7/13/2019 Phn Xng HDS
13/33
n cng ngh I GVHD: TS.L Th Nh
H2 2.482 28.770
C1 1.75 20.284
C2 3.25 37.670
C3 4 46.363
C4 6.5 75.339
C5+ 82.02 76 950.64 1186.352 0.8013 99 0.3
products 100 1159.06
2.4 Phn xng isomer ha:
2.4.1 Tng quan v phn xng isomer ha:
Mc ch: Chuyn ha cc paraffin mch thng c RON thp thnh ccparaffin mch nhnh c RON cao, nhy b ( Isomerate) lm ngun phi trnxng thng phm.
Nguyn liu: S dng phn on xng nh t qu trnh chng ct kh quyncha ch yu l C5 v C6. Ngoi ra cn x l phn on xng ca qu trnhCCR c RON thp.
Sn phm: Xng isomerate giu i-C5v i-C6. Ty theo s cng ngh m cht lng sn phm s khc nhau:
Khng c hi lu : RON=78-83 v MON=76-81. S c hi lu: RON=88-90 v MON =86-88.
y l cu t s dng trc tip phi trn xng thng phm.2.4.2 Nguyn liu:
X l 70% xng nh t qu trnh chng ct kh quyn Nguyn liu cha ch yu C5 v C6 vi thnh phn la 50/50, tuy nhin ph
thuc nguyn liu m t l ny c th thay i.
Cc c trng ca nguyn liu c cho di y:Nguyn liu LN
m,103t/yr 362.44
% x l 70
Nguyn liu x l103 t/yr 253.709
103m3/yr 387.17
D, 103t/yr 108.73
-
7/13/2019 Phn Xng HDS
14/33
n cng ngh I GVHD: TS.L Th Nh
d154 0.655
RON 61.4
2.4.3 Tnh cn bng vt cht:
Hiu sut thu sn phm tham kho t Fundamentals of petroleum refining.
Xng isomerate c RON=83 ( s dng qu trnh isomerate n gin),RVP=12psi, v khi lng phn t ly trug bnh ca i-C5v i-C6.
Sau y l cn bng vt cht cho phn xng isomer ha:
Sn phm %wtm,
103t/yrv,
103m3/yr d154 RON RVP,bar MW %S
C3 0.348 0.883 1.74144 0.507i-C4 0.619 1.570 2.78995 0.5629
n-C4 1.77 4.491 7.68948 0.584
C5+ 97.263 246.765 374.94 0.6581 83 0.8275 79.164 0
products 100.000 253.709 387.17
2. n bng vt cht cho ton b nh m:
N NG VT HT
CDU VDU VB ISOM CCRHDS(VD)
FCCHDS
(LGO)HDS
(HGO)HDS
(LCO)T
H2 0.07 28.77 -4.62 -1.11 -2.06 -1.15 1
H2S 24.61 4.94 11.38 4.76 4
C2- 0.80 9.87 57.95 0.80 30.06 0.51 0.90 0.57 1
C3 16.80 6.03 0.88 46.36 0.49 95.95 0.31 0.56 0.35 1
C4 102.62 5.97 6.06 75.34 0.53 102.7 0.34 0.60 0.37 2LN 362.44 -253.7 1
-
7/13/2019 Phn Xng HDS
15/33
n cng ngh I GVHD: TS.L Th Nh
HN 1111. -1111.
XngCCR
950.6 9
XngFCC
0.00 846.4 8
Isomerate
246.7
7 2XngHDS
0.00 14.53 3.06 6.96 2.99 2
Xng V 47.33 -47.33
KER 663.47 6
LGO 1231.47 -615.73 6
HGO 1021.87 -562.03 4
LGO-HDS
607.69 6
HGO-HDS
543.68 5
LCO283.7
1-226.97 5
LCO-
HDS219.08 2
Gasoil(VB)
135.06
1
HCO+
Slurry
366.34
3
AR 3488. -3488.
VD2084.
43-958.84
-1080.
574
VD-HDS 922.50 -756.4 1
VR1404.
37-1154. 2
RVB950.0
59
c111.7
91
Tng 8000.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 80
HNG 3 TNH PHI LIU SN PHM
3.1 Gii thiu phng php Hu ht cc sn phm thng phm ca qu trnh lc du brng buc vmt
stiu chun nh ttrng, hm lng lu hunh, hm lng cc hp chtthm, nht... v mt ssn phm trung gian trong nh my lc du li qutha hay qu thiu, do ta phi phi liu cc sn phm ny li vi nhau c
c nhng sn phm t chtiu cht lng yu cu ca thtrng.
-
7/13/2019 Phn Xng HDS
16/33
n cng ngh I GVHD: TS.L Th Nh
Qu trnh lp n, chn hm mc tiu v gii quyt bi ton phi liu tuthucvo bn cht ca loi du th, chcng nghca tng phn xng. y tagii quyt bi ton vi cc c trng tnh ton phn trc nh hm lngS, chsoctan...; sau khi c c kt qu, ta quay li gii tm lu lng cnthit phi xl ca tng phn xng.
bi ton n gin, ta phi t ra mt sgithuyt nh sau: Xng HDS v gim nht khng s dng phi trn xng thng phm. Phn ct chn khng VD sau khi xl HDS mt phn c mang i phi
trn cho FO2 v c hm lng S thp.
Phn xng HDS c phi trn hon ton cho nguyn liu ha du.Cc tnh cht ca sn phm c tnh nh sau:
T trng: tnh theo phng php cng tnh th tch
i
ii
v
vdd
Vi: dil t trng ca thnh phn th i tham gia phi liu
vil th tch ca phn th i tham gia phi liu
d l t trng ca sn phm thng phm.
Hm lng lu hunh: tnh theo phng php cng tnh khi lng% .
% i i
i
S mS
m
Vi: %S l hm lng lu hunh c trong sn phm
%Sil hm lng lu hunh trong phn i em phi liu
mi: phn trm khi lng ca phn i em phi liu
Ch s octan: tnh theo phng php cng tnh th tch
i
ii
v
vRONRON
.
Vi: RONil ch s octan ca phn i em phi liu
Vil th tchphn i tham gia phi liu
RON l ch s octan ca sn phm
p sut hi bo ho: tnh theo phng php cng tnh phn mol.i i
i
RVP molRVP
mol
-
7/13/2019 Phn Xng HDS
17/33
n cng ngh I GVHD: TS.L Th Nh
Vi: RVP l p sut hi bo ho ca sn phm
RVPil p sut hi bo ho ca phn th i tham gia phi liu
molil phn mol ca phn i tham gia phi liu
Ch s cetan: Tnh theo phng php cng tnh th tch
i
ii
v
vICIC
.
Vi: IC l ch s cetan ca sn phm
ICil ch s cetan ca phn i tham gia phi liu
Vi: phn th tch th i tham gia phi liu
Ch s trn ln ca im chp chy: Tnh theo phng php cng tnh khilng
i
iFPi
FP
m
mBIBI
.
Vi: BIFPl ch s trn ln im chp chy ca sn phm
BIFpi : ch s trn ln im chp chy phn i tham gia phi liu
mi: khi lng phn i tham gia phi liu
(BIFPFlash Point Blending Index)
Ch s trn ln ca nht:
i
ivi
v
V
VBIBI
.
Vi: BIvl ch s trn ln nht ca sn phm
BIvil ch s trn ln ca nht ca phn th i tham gia phi liu
Vi: th tch phn i tham gia phi liu
Ch s trn ln ca im chy: Tnh theo phng php cng tnh khi lng
i
iPPi
PP
m
mBIBI
.
Vi: BIPPl ch s trn ln im chy ca sn phm
BIPpi : ch s trn ln im chy phn i tham gia phi liu
mi: khi lng phn i tham gia phi liu
3.2. c rng buc
-
7/13/2019 Phn Xng HDS
18/33
n cng ngh I GVHD: TS.L Th Nh
Mi loi sn phm s chu mt s rng buc v ch tiu cht lng khc nhau.Do ta phi phi trn cc bn sn phm thu c t cc qu trnh x l t cyu cu t ra.
Gi miv Vil lu lng khi lng v th tch ca bn thnh phm th i em
i phi liu. Ta lp cc rng buc nh sau:
Rng buc v t trng: m axm in dd
m
md
i
i
i
Rng buc v hm lng S: ma xmin . Sm
mSS
i
ii
Rng buc v ch s octan:
i
i
i
i
i
d
m
RON
d
m
RON
.
min
Rng buc v p sut hi bo ha thc RVP:min max
.RVPi i
i
i
i
m
PMRVP RVP
m
PM
Vi PMil phn t lng ca thnh phn th i tham gia gia phi liu.
Rng buc v ch s cetan:m in
.
IC
d
m
d
ICm
i
i
i
ii
Cc rng buc lin quan n ch s trn ln
im chp chy, im chy, nht ca sn phm c tnh ton phi liu tcc bn thnh phm thng qua ch s chp chy hn hp, ch s im chy hn hp,chs nht hn hp (BI Blending Index). Do , t cc s liu v im chpchy, im chy, nht, tra th quan h gia ch s im chp chy vi ch schp chy; im chy vi ch s im chy; nht vi ch s nht ta s c ccc ch s chp chy, ch s im chy, ch s nht ca tng ngun phi liu c s.Sau , s dng phng php cng tnh (th tch hay khi lng) tnh c ch s hnhp ca sn phm, v t tra ngc li gi tr im chp chy, im chy, nhttng ng ca sn phm.
Nh vy, rng buc v cc tnh cht im chp chy, im chy v nhtc th hin thng qua rng buc v ch s hn hp tng ng.
Rng buc: BIm(min)BIm BIm(max)
-
7/13/2019 Phn Xng HDS
19/33
n cng ngh I GVHD: TS.L Th Nh
Trong , BIm(min) v BIm(max)c tra thng qua tiu chun min v/hoc max ca cctnh cht tng ng.
Qu trnh phi liu c thc hin nh trnh tnh ton ti u ho Solver ca Excel.
3.3. c bc tin hnh
Mc ch: m bo cc chtiu vcht lng v slng sn phm thamn yu cu thtrng.
Nguyn tc: Tcc tnh cht k thut ca cc phn on nh: chsoctan, psut hi, hm lng lu hunh, nht, chsCtane, ttrng, im chy,nhit chp chy, hm lng Aromatic.ta phi phi trn sao cho tiuchun k thut phi nhhn (i vi gi trmax) hay ln hn (i vi gi trmin) cc chtiu cn t c ca sn phm thng phm.
c bc tin hnh: Ti a cng sut ca cc phn xng VDU, CCR, FCC, HDS, VB. Tin hnh phi liu cho tng phn xng: gm cc bc tnh cc tiu chun
k thut ca sn phm theo nguyn tc cng tnh khi lng hay thtch(nh ni phn 3.1)
nht, im chy, nhit chp chy c xc nh thng qua chshnhp. i vi nht v im chy th chshn hp ca n tlthun vi
nht, cn nhit chp chy th tlnghch vi chshn hp ca n(v dnh nhit chp chy ca FO2ln hn 70oC th chshn hp ca
n phi nhhn 70 chng hn).
Lp cc phng trnh, bt phng trnh biu din cc rng buc vslngcng nh cht lng sn phm
Gii hcc phng trnh v bt phng trnh bng Solver Sau khi phi liu xong, kim tra xem bn sn phm no tha, bn sn phm
no thiu so vi nhu cu thtrng tin hnh cc bc iu chnh cngsut ca cc phn xng: phn xng chng ct chn khng, phn xngFCC, phn xng reforming xc tc, phn xng HDS, phn xng gimnht.
Kim tra cn bng nng lng ca nh my: phi m bo nng lng thuc tqu trnh t chy nhin liu trong nh my l 2-3% tiu thnnglng ni bca ton nh my.
3.4. Phi trn cc sn phm
3.4.1. Propane thng mi v utane thng mi
-
7/13/2019 Phn Xng HDS
20/33
n cng ngh I GVHD: TS.L Th Nh
Tiu chun ca C3v C4thng phm:
Propane thng phmBan u Yu cu C3d167.73 150 17.73
Butane thng phmNgun phi trn C3 C4
d154 0.51 0.57Lu lng 17.73 294.53Nhu cu 190.00
Lng phi trn kt/yr 17.73 172.27Lng phi trn km3/yr 34.98 301.70
%vol 10.39 89.61
d154 0.56D 0.00 122.26
3.4.2. Phi trn xng thng phm
3.4.2.1 Phi trn 5
Tiu chun xng E5:TCVN 6776: 2005
Tiu chun Min Max
d154 0.725 0.775
RON 92
RVP (bar) 0.43 0.75% S 0.05
%vol EtOH 5
RON ca xng E5 c th 90/92/95 y chn RON=95. p sut hi bo ha c gii hn di nhm m bo kh nng khi
ng ngui ca ng c v gii hn trn nhm trnh mt mt, to nthi v tng sut tiu hao nhin liu.
Hm lng lu hunh c khng ch nhm m bo vn mitrng.
Cc ngun phi trn:LN, isomerate, xng FCC, Xng CCR v ethanol
Tiu chunC3 C4
%vol C3 90 < 19
d154 0.502 0.559
-
7/13/2019 Phn Xng HDS
21/33
n cng ngh I GVHD: TS.L Th Nh
Nhu cu sn phm400 kt/yr.LN Isomerate Xng FCC Xng CCR EtOH Tng
Lng phi trn kt/yr 28.40 50.89 155.77 143.04 21.903 400.0
Lng phi trn 103m3/yr 43.33 77.3248 224.96 178.509 27.586 551.7
KLPT 79.56 79.16 104 106 46.07S mol (kmol/yr) 0.356 0.64285 1.497 1.34945 0.4754 4.3224
Phn mol 0.082 0.14872 0.3465 0.3122 0.1099 1
d154 0.655 0.65813 0.6923 0.80131 0.794 0.7250
RON 61.4 83 92 99 120 92.0RVP (bar) 0.73 0.82752 0.689 0.3 0.159 0.53
% S 0.024 0 0.124 0 0 0.050%Vol 7.854 14.0151 40.77 32.354 5 100
3.4.2.2 Phi trn xng M5 Tiu chun xng M95:
TCVN 6776: 2005Tiu chun Min Max
d154 0.725 0.775
RON 95
RVP (bar) 0.43 0.75
% S0.05
Cc tiu chun tng t nh xng E5 . Ngun phi trn :
Ch yu l xng CCR v xng FCC, xng CCR c RON cao v S thptuy nhin RVP nh do ta phi trn thm C4nhm m bo chi tiuRVP ca xng.
Xng FCC c cht lng trung bnh vi RON kh cao tuy nhin hmlng S ln ( ngoi ra c lng HC khng no ln gim n nh oxyha ca xng).
Phi trn mt lng nh xng isomerate Nhu cu: 750 kt/yr. Sau y l bng phi trn xng M95:
-
7/13/2019 Phn Xng HDS
22/33
n cng ngh I GVHD: TS.L Th Nh
C4 LN Isomerate Xng FCC Xng CCR TngLng phi trn kt/yr 28.13 0.00 33.76 302.37 385.75 750.00
Lng phi trn 103m3/yr 49.27 0.00 51.29 436.70 481.39 1018.65KLPT 58.12 79.56 79.16 104.00 106.00
S mol (kmol/yr) 0.48 0.00 0.43 2.91 3.64 7.46
Phn mol 0.06 0.00 0.06 0.39 0.49 1.00d154 0.57 0.66 0.66 0.69 0.80 0.736
RON 95.00 61.40 83.00 92.00 99.00 95.00RVP (bar) 4.24 0.74 0.83 0.69 0.30 0.74
% S 0.00 0.02 0.00 0.12 0.00 0.05
3.4.2.3 Phi trn xng M2
Tiu chun xng M92:TCVN 6776: 2005
Tiu chun Min Max
d154 0.725 0.775
RON 92
RVP (bar) 0.43 0.75
% S 0.05
Bng phi trn xng M92LN Isomerate Xng FCC Xng CCR Tng
Lng phi trn kt/yr 27.69 162.12 388.34 421.85 1000.0
Lng phi trn 103m3/yr 42.2525 246.3303 560.867 526.451 1375.9KLPT 79.56 79.16 104.00 106.00
S mol (kmol/yr) 0.34801 2.047907 3.73405 3.97973 10.1097Phn mol 0.03442 0.202569 0.36935 0.39365 1
d154 0.655 0.658139 0.692 0.801 0.727
RON 61.4 83 92 99 92RVP (bar) 0.73525 0.82752 0.6896 0.3 0.566
% S 0.024 0 0.12402 0 0.05
Ngun d phi liu:
D C4 LN HN Isomerate Xng FCC Xng CCRLng cn li kt/nm 94.13 52.65 0 0 0 0
C4c s dng lm nhin liu cho nh my sau khi phi trn ha du, xngnh a i phi trn nguyn liu ha du.
3.4.4. Nguyn liu ha du
y, ngun phi trn cho nguyn liu ha du gm xng NAP, xng HDS vxng BZN.
Tt c cc ngun trn c phi trn nguyn liu ha du.
-
7/13/2019 Phn Xng HDS
23/33
n cng ngh I GVHD: TS.L Th Nh
Nhu cu nguyn liu ha du l: 520(kt/y). Phi trn :
3.4.5. Nhin liu phn lc Jet A1 Phn on Kerosne ca qu trnh chng ct trc tip m bo c cc tiu
chun k thut.
Tiu chun ca JetA1.TCVN 6426:2009
Tiu chun min max%Ar 22
d154 0.775 0.84Flash point 38
%S 0.3Pour point -47
Vis -20oCcSt 8 Nhu cu: 230 kt/yr Bng phi trn JetA1
Phi liu KER D KER
Lng cn dng (Kt/nm) 230 Lng cn li (Kt/nm) 433.47
%Ar 20.97
d154 0.7905Flash point 67.16
%S 0.101Pour point -50.55
Vis 20cSt 1.52
Kerosene d c s dng lm ngun phi liu cho nhin liu Diesel v duha dn dng KO.
NAP ESS HDS BZN PC
Lng sn c, kt/y 390.32 26.06 143.07 559.45
Lng phi trn, kt/y 350.87 26.06 143.07 520.00
Lng cn li, kt/y 39.45 0.00 0.00 39.45
-
7/13/2019 Phn Xng HDS
24/33
n cng ngh I GVHD: TS.L Th Nh
3.4.6. Nhin liu Diesel (GOM)
V hm lng lu hunh ti a trong Diesel thng phm l 0,05% nn takhng th s dng trc tip phn on Gasoil ca qu trnh chng kh quyn c m
phi kh lu hunh cho phn on Gasoil (ty thuc vo nng sut sn phm thu c
m chn lng % Gasoil vo cc phn xng HDS). y, ta ch s dng 2 ngunphi trn cho Diesel thng phm l GO kh S, LGO kh S v VD kh S.
Yu cu k thut:Theo TCVN 5689 2005 c 6 yu cu ch yu cn phi tun th i vi dieselthng phm:
Tnh chtYu cu kthut
Min Max
Ttrng d15/4 0,82 0,86
%S, (%kl) 0,05Chscetane IC 46
im chp chy, oC 55
nht 40oC, cSt 2 4,5
im chy, oC 6
Phi trn: Lu lng yu cu: 1100 (Kt/y)Bng Phi trn Diesel thng phm
Ngun GO-HDS LCO-HDS VD-HDS GOMNguyn liu kt/y 1667.82 192.91 126.23 1986.96
Phi trnkt/y 973.77 0.00 126.23 1100.00
103m3/y 1158.26 0.00 137.81 1296.06
mi 0.89 0.00 0.11 1.00
vi 0.89 0.00 0.11 1.00%S 0.04 0.05 0.07 0.04
d154 0.84 0.92 0.92 0.85
IC 50.20 22.93 33.31 48.41TPf,
oC 104.44 73.00 151.97 99.00
IPf 0.45 2.00 0.00 0.40Lng d, kt/y 694.04 192.91 0.00 886.96
Ch thch : nht 40oC ca GO v LGO c tra theo gin tiu chun ASTM nht nhit , da vo nht 20oC v 100oC. Sau , xem qu trnh HDS cithin nht khong 0,2 0,3 n v. Xem im chy ca GO-HDS v LGO-HDSkhng i sau khi qua qu trnh HDS (thc t gim khong 1 3 n v).
3.4.7. Du t dn dng (FOD)
-
7/13/2019 Phn Xng HDS
25/33
n cng ngh I GVHD: TS.L Th Nh
Cc tiu chun kthutTIU CHUN
MIN MAX%S 0.2
d15
4 0.83 0.88IC 40
TEC,oC -9
Pf,oC 55
vis 20, cSt 9.5 Phi trn : Lu lng yu cu 1000 (Kt/y)
Bng Phi trn du t dn dng
Ngun GO GO_HDS LCO_HDS FODNguyn liu kt/y 232.12 694.04 192.91 1119.07
Phi trnkt/y 113.04 694.04 192.91 1000.00
103m3/y 132.41 825.53 210.15 1168.09
mi 0.11 0.69 0.19 1.00
vi 0.11 0.71 0.18 1.00%S 1.24 0.04 0.05 0.17
d154 0.85 0.84 0.92 0.86IC 47.20 50.20 22.93 44.96
TEC,oC -9.00 -11.00 73.00 -12.0
Iec 29.00 27.00 24.00 26.65
Pf,oC 107.44 104.44 73.00 92.00
IPf 0.38 0.45 2.00 0.74vis 20, cSt 6.50 6.50 4.80 7.50
IVIS 23.00 23.00 18.90 22.21Lng d, kt/y 119.07 0.00 0.00 119.07
Ch thch : Tnh cht ca cc ngun phi liu c ly theo tnh cht tnh trn.
Ngoi ra :
+ Ch s cetane ca GO c c lng bng 15.
+ im chy ca LCO-HDS c coi nh ci thin 1 n v sau qu trnhHDS.
+ nht 20oC ca LCO c lng bng 380 cSt
+ nht ca VD-HDS gim 0,3 n v sau khi qua qu trnh HDS.
-
7/13/2019 Phn Xng HDS
26/33
n cng ngh I GVHD: TS.L Th Nh
3.4.8. Du ha dn dng (FO2) Tiu chun kthut :
Tiu chun
MIN MAX
%S 4d154
VIS 100, cSt 40
IV
PF,oC 70
Ngun phi liu :Nhu cu 2250 (Kt/y)Bng Phi trn du t cng nghip
Ngun GO AR RVB HCO FO2Nguyn liu kt/y 119.07 1500.00 492.21 265.81 2377.09
Phi trnkt/y 119.07 1372.91 492.21 265.81 2250.00
103m3/y 139.48 1437.60 491.91 260.60 2329.59
mi 0.05 0.61 0.22 0.12 1.00
vi 0.06 0.62 0.21 0.11 1.00
%S 1.24 3.14 4.50 2.60 3.27
d154 0.85 0.96 1.00 1.02 0.966
VIS 100, cSt 4.60 28.00 163.69 7.00 29.00IV 47.00 32.50 24.00 42.00 32.64
PF,oC 107.44 160.00 90.00 120.00 >70
Lng d, kt/y 0.00 127.09 0.00 0.00 127.09
Ch thch :
+ im chy ca RSV tra theo hiu sut thu cn l 19,29%.
+ im chy ca RVB c lng bng 25oC
+ Ch s nht ca RSV c tnh theo phng php cng tnh th tch, theoch s nht ca RA v VD vi thnh phn th tch ca RSV v VD trong RA.
3.4.9. Phi trn Bitume
Sn phm Bitume c phi trn t ngun phi liu l VR, vi nng sut: 500(kt/y).
Phi trn:VR BI
Lng cung cp (Kt/y) 500.00 500.00
Lng phi trn (Kt/y) 500.00 500.00
-
7/13/2019 Phn Xng HDS
27/33
n cng ngh I GVHD: TS.L Th Nh
Lng cn li (Kt/y) 0.00 0.00
-
7/13/2019 Phn Xng HDS
28/33
n cng ngh I GVHD: TS.L Th Nh
HNG 4 TNH N NG NHIT LNG HO NH MY
4.1 Nng lng cn cung cp cho cc phn xng trong nh mBng nng lng yu cu cung cp cho nh my
Phn xng Nguyn liu
Lng FO quy
i (tn/ ktnguyn liu)
Nng lng tiu
th quy i rakt FO
DA 8550 19 162.450
VDU 2538.74 18 45.697
VB 535.13 23 12.308
FCC 631.51 2 1.263
CCR 1319.08 67 88.379
HDS GO 1702.18 18 30.639
HDS LCO 197.79 18 3.560HDS VD 872.09 18 15.698
Total 15474.43 359.99
4.2 Nng lng do vic t cc sn phm d trong nh m Bng nng lng do phn d cung cp
Nhin liuLng d sovi nhu cu
(kt/y)
T l quy ithnh FO (kt/kt)
Nng lngcung cp (kt
FO)
H2 23.103 2.750 63.532
C2- 86.260 1.230 106.100
C3 0.000 1.180 0.000
C4 32.141 1.160 37.283
NAP 39.455 1.110 43.795
KER 2.230 1.100 2.453
AR 127.095 1.000 127.095
Total 310.283 380.259
So snh gi tr nng lng cn cung cp v nng lng do qu trnh t chycc bn sn phm trung gian, ta thy nng lng d 5,635% so vi nng lng cncung cp (hp l).
4.3 ng cn bng vt cht sau phi trn
-
7/13/2019 Phn Xng HDS
29/33
n cng ngh I GVHD: TS.L Th Nh
Page 29
PR BU SU98 SU95 PC JET A1 GOM FOD FO2 BI BAN UC NLI
H2 23.10 23.103H2S 46.77 46.770C2- 86.26 86.260C3 149.00 149.00 0.000C4 1.00 250.00 0.00 283.14 32.141NAP 21.79 350.87 412.11 39.455BZN 143.07 143.07 0.000MTBE 45.00Xng (CCR) 496.96 609.87 1106.83 0.000Xng (FCC) 208.04 368.34 576.38 0.000Xng (HDS) 26.06 26.06 0.000Xng VB 0.00 0.000KER 590.0 592.23 2.230KER kh S 0.00 0.000GO cn S 113.04 119.07 232.12 0.000GO kh S 973.77 694.04 1667.82 0.000LCO cn S 0.00 0.000LCO kh S 0.00 192.91 192.91 0.000HCO+Slurry 265.81 265.81 0.000AR 1372.9 1500.00 127.095
VD 0.00 0.000VD-HDS 126.23 126.23 0.000VR 500.00 500.00 0.000RVB 492.21 492.21 0.000C C 127.95 127.947TNG 150.00 250.00 750.00 1000.00 520.00 590.0 1100.0 1000.0 2250.0 500.00 8550.00 485.000
-
7/13/2019 Phn Xng HDS
30/33
n cng ngh I GVHD: TS.L Th Nh
Page 30
HNG 5 KT LUN
Sau khi hon thnh n cng ngh 1, chng em nhn thy:
- tnh ton c cn bng vt liu ph hp vi nng sut cc phn xng.
- phi liu hon chnh cc sn phm theo yu cu v s lng v cc tiu chunt ra.
-Sau khi ti u nng sut ca cc phn xng chuyn ha p ng nhng tiuchun ca cc sn phm, phn nng lng d kh nh 5.635 % so vi phn nng lngdng cung cp cho nh my.
Nh my lc du theo n ny thit k c nng sut 8,55 triu tn/nm. Mc tiuca bi ton l x l nguyn liu mt cch ti u sao cho nh my vn t hiu qu caov li nhun kinh t m cn c kh nng p ng y cc nhu cu v sn phm du
m cho th trng hin nay.
Vic thc hin n ny cho php chng em nm li cc kin thc c bn cachuyn nghnh. Cc khi nim c th ca du th v cc sn phm du m, cc ch tiuno l quan trng,cn thit phi c i vi tng loi sn phm, hc c cch tnh toncc thng s t cc cng thc v s dng th.
Vi s gip tn tnh ca gio vin hng dn, chng em hon thnh nng vi thi hn quy nh. Tuy nhin khng th trnh khinhng thiu st, chng emrt mong nhn c s gp ca cc thy c c th hc tp c nhiu kin thc hn.
Cui cng chng em xin chn thnh cm n c gio TS.L Th Nh v cc thyc gio trong khoa nhit tnh hng dn v gip chng em honthnh tt n ny.
-
7/13/2019 Phn Xng HDS
31/33
n cng ngh I GVHD: TS.L Th Nh
Page 31
-
7/13/2019 Phn Xng HDS
32/33
n cng ngh I GVHD: TS.L Th Nh
Page 32
MT S T VIT TT
K hiu vit tt Tn tht Ngha
CDU Crude Distillation Unit Phn xng chng ct kh quyn
VDU Vacuum Distillation Unit Phn xng chng ct chn khng
AR Atmospherique Residu Cn chng ct kh quyn
HGO Heavy Gasoil Gasoil nng
BZN Benzine Xng nng
NAP Naphtha Xng nh
VD Vacuum distillate Phn ct chn khng
VR Vacuum Residu Cn chng ct chn khng
RVB Residu of Vis - Breaking Cn gim nht
LCO Light Cycle Oil Gasoil nh cracking xc tc
HCO Heavy Cycle Oil Gasoil nng cracking xc tc
FOD Fuel Oil Domestique Du t dn dng
FCC Fluid Catalytic Cracking Cracking xc tc tng si
CR Catalytic Reforming Reforming xc tc
-
7/13/2019 Phn Xng HDS
33/33
n cng ngh I GVHD: TS.L Th Nh
TI LIU THAM KHO
[1] Hng dn n Cng ngh I , TS L Th Nh , i hc Bch Khoa
Nng.
[2] Characterization and propeties of Petroleum Fractions, M.R Riazi, Professor ofChemical Engineering, Kuwait University.
[3] Ptrole Brut Produits Ptroliers Jean Pierre Wauquier, Institut Francais duPtrole, 1994.
[4] Procds de transformationPierre Leprince, Institut Francais du Ptrole, 1998.
[5] Ti liu thc nghim - TS. L Th Nh .