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Salalah Methanol Project
BASIC ENGINEERING
DESIGN DATA
(BEDD)
Doc. No. : 7S72-PRG-00-001
Rev. : 0
Page : 1 of 21
Date : 15th
June, 2007
BASIC ENGINEERING DESIGN DATA
CONTRACTOR JOB NO. : 7S72 PROJECT NAME : Salalah Methanol Project OWNER : Salalah Methanol Company, LLC (FZC) SITE : Salalah, Sultanate of Oman
0 15/06/07 Issued for Approval J. Y. KIM S.W.HONG M.R.LEE
REV. DATE DESCRIPTION PREP’D CHK’D APP’D OWNER
Salalah Methanol Project
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TABLE OF CONTENTS
BASIC ENGINEERING DESIGN DATA
1. GENERAL
1.1 COMMON INFORMATION
1.2 GENERAL SITE COMMON INFORMATION
1.3 UNITS OF MEASUREMENT
2. UTILITIES
2.1 WATER
2.1 STEAM
2.3 COMPRESSED AIR / INERT GAS
2.4 ELECTRICAL POWER
3. SITE CONDITIONS
3.1 TEMPERATURE
3.2 HUMIDITY
3.3 ATMOSPHERIC PRESSURE
3.4 PRECIPITATION
3.5 UNDERGROUND WATER LEVEL
3.6 WIND SPEED AND PREVAILING DIRECTION
3.7 SEISMIC INTENSITY
4. SITE AREA
5. CAPACITY AND PRODUCT SPECIFICATIONS
5.1 METHANOL CAPACITY
5.2 METHANOL SPECIFICATION
5.3 METHANOL LOADING RATES
6. FEEDSTOCK AND FUEL
6.1 NATURAL GAS
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6.2 SUPPLY CONDITIONS
6.3 DESIGN OPERATION CAPACITY
7. DISTILLATION
8. START-UP, IMPORT STEAM AND EXPORT STEAM
9. NOISE
Appendix 1. REFINED METHANOL SPECIFICATIONS
2. SEA WATER ANALYSIS
3. DEMINERALIZED WATER QUALITY
4. UTILITY WATER QUALITY
5. POTABLE WATER QUALITY
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1. GENERAL
1.1 COMMON INFORMATION
1.1.1 PURPOSE
This document defines the Basic Engineering Design Data (BEDD) to be used during the
basic/detail design of the Salalah Methanol Plants and relevant utility/offsite facilities that will
be built in the Salalah Free-Zone, the Sultanate of Oman. The facility includes all offsites
and utilities (OSBL) in addition to the Methanol Plant (ISBL).
1.1.2 SCOPE
1) Unless otherwise specified, this document shall be applied to all equipment, materials
and/or package facilities involved in this Salalah Methanol Plant Project.
2) This document covers location of plant site, geometrical conditions, climatic conditions,
utilities conditions and allowable limits to be applied to the design of equipment,
materials and/or package facilities involved in this Salalah Methanol Plant Project.
3) The Basic Engineering Design Data (BEDD), which is not specified in this document
and which shall be applied to the design of equipment, materials and/or package
facilities, will be defined in requisitions, drawings, data sheets and/or other documents
included in requisitions.
1.1.3 OWNER'S NAME, LOCATION AND PROJECT NAME
The full names and abbreviations are as follows: (The latter are shown in [ ].)
a) Owner's Name Salalah Methanol Co., LLC (FZC)
[ SMC ]
b) Location Salalah, The Sultanate of Oman
[ Salalah ]
c) Project Name Salalah Methanol Project
[ SMP ]
The abbreviations described above will appear on project specification and drawing title
block.
1.1.4 TYPE AND CAPACITY OF THE PLANT
Nominal 3000 MTPD Methanol Plant
1.2 GENERAL SITE COMMON INFORMATION
The site is located approximately 15 km southwest of the city of Salalah, in the southwest of
the Sultanate of Oman (Following Figure 1). The Salalah seaport premises are 200m to the
east of the site. The site is an undeveloped open area with a downward slope towards the
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northeast (Figure 2 shows the location of site). A Port Authority building delimits the plot on
the southeastern corner; rocky outcrops and hills border the plot on the southwestern side.
The site is divided in two by a wadi running east west and diverting towards the north at the
western end.
Geotechnical and Topographical Surveys have been commissioned by SMC. Refer to Part
IV of ITB.
The observed surface conditions indicate that medium to high load bearing soils are present
at shallow depths. Shallow foundations are considered appropriate for most structures.
Plant Elevation Datum High Point of Paving = EL+100,000 = MSL+8,500 mm
Marine Environment Yes
Coastal Environment Yes
Subject to dust/s and storms Yes
Site Access No special limitations to be considered
Weight and size limitation No special limitations to be considered
Site subject to Flooding No
Site subject to subsidence No; however base rock is limestone
Figure 1) Figure 2)
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1.3 UNITS OF MEASUREMENT
Measurement Unit Abbreviation
Length
Area
Volume
Volume Flow Liquid
Volume Gases at 1 atm, 0°C
Volume Flow Gas
Velocity
Weight (Mass)
Molecular Mass
Molecular Weight
Density
Mass Flow
Force
Moment of Force
Stress
Polytropic Head
Pressure
Metres
Millimetres
Centimetres
Square metres
Cubic metres
Cubic metres per hour
Cubic metres per second
Normal cubic metres
Normal cubic metres per hour
Meters per second
Kilometres per hour
Kilograms
Tonnes
Kilogram mole
Kilogram/kg mol
Kilograms per cubic decimetre
Kilograms per cubic metre
Kilograms per hour
Tonnes per hour
Tonnes per day
Newton
KiloNewton
Newton metre
KiloNewton metre
Newtons per square Millimetre
KiloJoules per kilogram
Bar
Bar absolute
Bars gauge
Millibar gauge
m
mm
cm
m2 or sq. m
m3 or cu. m
m3/h
m3/s in drainage pipes
Nm3
Nm3/h
m/s
km/h
kg
T or Te
kg mole or kmol
kg/d m3
kg/m3
kg/h
t/h or Te/h
MTPD or t/d
N
kN
Nm
kNm
N/mm2
kJ/kg
bara
barg
mbarg
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Measurement Unit Abbreviation
Vacuum
Energy
Power
Heat flow
Viscosity
Heat Transfer Coefficient
Temperature
Heat Capacity
Thermal Conductivity
Latent Heat
Current
Voltage
Concentrations
Noise
Revolutions
Time
Bars absolute
Millibar absolute
Millimetres water gauge
KiloJoules
MegaJoules
Kilowatt hour
Kilowatt
Megawatt
Kilowatt
Megawatt
Centipoise
Centistokes
Watts per square meter per
degree Kelvin
Degree Celsius
Kilojoules per kilogram per
degree Kelvin
Watts per metre per degree
Kelvin
Kilojoules per kilogram
Amps
Volts
Parts per million weight
Micrograms per cubic metre
Milligrams per cubic metre
Milligrams per litre
Weight percent
Mole percent
Volume percent
Parts per million volume
Decibel
Revolutions per minute
Second
Hour
Year
bara
mbara
mm H2O
kJ
MJ
kWh
kW
MW
kW
MW
cP
cSt
W/m2K
oC
kJ/kg K
W/m K
kJ/kg
A
V
ppmw
µg/m3
mg/m3
mg/l
wt %
mol %
vol %
ppm vol
dB (A)
RPM
S
h
a or yr
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Measurement Unit Abbreviation
Moisture
Air Humidity
Piping Nominal Size
Fouling Factor
External Diameter of Tubes
for Heat Exchanger
Surface Tension
Flange Rating
On-stream Factor
weight percent
percent relative humidity
Inches
square metre Degree Kelvin per
watt
Millimetres
dynes per centimetre
Pound
hours/year
wt % H2O
% RH
in (“)
m²K/W
mm
dyne/cm
lb or #
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2. UTILITIES
All Utilities and Services must be provided by the plant, which is to be self-sufficient in
electric power. The only raw materials available are natural gas, sea water, and atmospheric
air.
2.1 WATER
2.1.1 OPERATING & MECHANICAL DESIGN CONDITIONS
System
Temperature (oC) Pressure (barg)
Min. Nor. Max. Mech.
Design Min. Nor. Max.
Mech.
Design
Sea water supply
(Note 1) - 28 - 50 - 5 10
Sea water return - 38 - 50 - 5 10
Utility water
(Note 2) - 41 - 80 - 4.5 10
Potable water
(Note 3) - 20 - 41 - 4.5 10
Cooling water
supply - 35 - 70 - 5 10
Cooling water
return 45 70 5 10
Note 1. Seawater is taken from the Arabian Sea adjacent to the plant site. The design
intake temperature is 28°C. The salinity of the Arabian Sea is approximately 9% higher than
standard seawater and has been measured at 37.5 ppt; pH is reported at 8.58, with
dissolved oxygen ranging from 5 to 6.7 mg/l depending on depth of intake.
(Refer to Appendix 2)
Note 2. Refer to Appendix 4.
Note 3. Potable water is Chilled to 20 ℃ (Refer to Appendix 5)
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2.1 STEAM
2.1.1 OPERATING & MECHANICAL DESIGN CONDITIONS
System
Temperature (oC) Pressure (barg)
Min. Nor. Max. Mech.
Design Min. Nor. Max.
Mech.
Design
HP steam - 520 530 560 - 104 105 110.4
MP steam - 340 342 390 - 26 26.9 35.5 &
F.V
LP steam 180 192 210 315 4 4 4 7.8 &
F.V
2.3 COMPRESSED AIR / INERT GAS
2.3.1 OPERATING & MECHANICAL DESIGN CONDITIONS
System
Temperature (oC) Pressure (barg)
Min. Nor. Max. Mech.
Design Min. Nor. Max.
Mech.
Design
Instrument air - 40 - 60 - 7 - 10.5
Plant air - 40 - 60 - 8 - 10.5
Nitrogen - 40 - 60 - 7 - 10.5
2.4 ELECTRICAL POWER
Electrical Power is distributed by 11 kV and 50 Hz. Motors greater than 150 kW are
supplied at 3.3kV, 50 Hz, and motors less than 150 kW by 400V, 50 Hz. Small power is
available with 230V and 50 Hz.
Motor < 150 kW: 400 V & 50 Hz
Motor > 150 kW: 3.3 kV & 50 Hz
Small Power: 230 V & 50 Hz
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3. SITE CONDITIONS
Local conditions are severe; the climate is characterised mainly by extreme heat and
humidity. The area is also subject to prolonged mist and precipitation during the monsoon
season from June to September. SMC has commissioned a report on Environmental and
Meteorological Data from PARSONS E&C (Part IV of ITB, Supporting Document Section
Report No. PAR4247/RPT/101 REV.A)
3.1 TEMPERATURE
Maximum Temperature reported (Jun 1994) 44.7oC
Minimum Temperature reported (Feb 1983) 10.8oC
Monthly Mean Temperature 26.3oC
Temperature for Material Balance 27oC
Maximum daily mean Wet Bulb Temperature (1998) 28.5oC
Minimum daily mean Wet Bulb Temperature (1998) 9.7oC
Mean Wet Bulb Temperature (1998) 23oC
Design Dry Bulb Temperature for Air Cooled Heat Exchangers 43oC
Design Temperature for Air Compressor 45oC
3.2 HUMIDITY
Maximum RH (1983-2003) 100%
Minimum reported RH (1983-2003) 1%
Monthly Mean RH (1980-2003) 67.5%
Average Relative Humidity for Material Balance 85% @ 27oC
Relative Humidity (for Air Compressors & Fans) 100% @ 45oC
3.3 ATMOSPHERIC PRESSURE
Average for Material Balance 98.3 kPa
Nominal Atmospheric Pressure (for Air Compressor) 98 kPa
Design Maximum Note 1 kPa
Design Minimum Note 1 kPa
Note 1. SMC to be fill up
3.4 PRECIPITATION
Mean annual rainfall (1943 – 2003) 110 mm
Maximum annual rainfall (1964) 510 mm
Minimum annual rainfall (1974) 21.2 mm
Run Off Rates Refer to Document 60-8579-02/C.02a/0001
Civil, Structural, and Architectural Specification, Section 9
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3.5 UNDERGROUND WATER LEVEL Up to 0.6m above Mean Sea Level (MSL)
(Ground Level is 4.5 to 14.5 m above MSL)
3.6 WIND SPEED AND PREVAILING DIRECTION
Prevailing Direction: from South West to South East (see table below)
Direction W NW N NE E SE S SW
Degrees 247.5- 292.5- 337.5- 22.5- 67.5- 112.5- 157.5- 202.5-
292.5 337.5 22.5 67.5 112.5 157.5 202.5 247.5 Frequency 0% 2.8% 17.5% 2.4% 0% 7.9% 45.2% 24.2%
Mean Wind Speed : 3.0 m/s
Maximum Wind : 33 m/s
Wind Loading for Design : 56 m/s
3.7 SEISMIC INTENSITY
Oman is classified by Uniform Building Code 97 as Seismic Zone 2A. The
Geotechnical survey indicates a soil profile of SA.
4. SITE AREA
All equipment is located within the Salalah Methanol Plant fence, with the exception of the
sea water intake system (located on the adjacent coastline), sea water discharge point
(located in the wadi to the NE of the site) and methanol loading facilities (located at Salalah
Port Berth 31).
The sea water inlet line, the sea water discharge line, the methanol product line, and
services for the jetty area, cross the fence to their respective locations.
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5. CAPACITY AND PRODUCT SPECIFICATIONS
5.1 METHANOL CAPACITY
A nominal 3000 tonnes/d of methanol to the specification in 5.2
5.2 METHANOL SPECIFICATION
The product methanol will meet the requirements of IMPCA 99 and US Federal Grade
AA (US Federal Specification O_M_232K Methanol (Methyl Alcohol) 6810 GS, dated 14
October 1998). Details of these specifications are given in Appendix 1.
In addition, the product methanol will have the following specifications:
Permanganate Fading Time 60 minutes, minimum
Total Alkalinity (ASTM D1614-03) 1 ppm wt as ammonia, maximum
5.3 METHANOL LOADING RATES
The nominal ship loading rate is 3000 t/h. Loading facilities are to be sufficiently flexible
to load ships of capacities ranging from 10000 – 50000 DWT
6. FEEDSTOCK AND FUEL
6.1 NATURAL GAS
The natural gas available at the plant will have a composition in the range given in the
table below. An upstream treatment unit will normally remove the heavy components, but
in the event that this is not in operation, the rich gas feed will be supplied.
Component Rich Gas
Mol % dry Extreme Lean Gas
Mol % Dry Guarantee Gas
Mol % Dry Methane 82 to 88.3 95 max 95.0 Ethane 4.5 to 7.5 0.32 max 0.32 Propane 1.7 to 3.0 - - Butanes 1.1 to 1.85 - - Pentanes 0.35 min - - Pentanes + 0.76 max - - BTX 0.1 max - - He 0.05 max - - Nitrogen 5.0 max 7.5 max 4.68 Carbon Dioxide 1.2 max 3.5 max 0.0 A 75 ppm vol max 75 ppm vol max 75 ppm vol max O2 25 ppm vol max 25 ppm vol max 25 ppm vol max H2S 5 ppm vol max 5 ppm vol max 5 ppm vol max Mercaptan Sulphur 5 ppm vol max 5 ppm vol max 5 ppm vol max Total Sulphur 5 ppm vol max 5 ppm vol max 5 ppm vol max Mercury Note 2 Note 2 Note 2 GHV (Btu/SCF)1 1040 to 1110 946 min 951
Note 1 1 MJ = 947.817 Btu
1 Sm3 = 35.383 SCF
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Water Content = 95 mg/std m³ October through April
160 mg/std m³ May through September
Note 2 Mercury contents to be conformed by SMC. (Refer to 38G and 126G of the
qualifications and clarifications on FEED)
6.2 SUPPLY CONDITIONS
Supply Conditions Minimum Maximum
Supply Pressure, barg, (Downstream of
Gas Company Metering Skid) 32 32
Supply Temperature, oC 5°C above
Hydrocarbon Dew Point
45
Design pressure, barg - 43
Design Temp, oC
- 82
6.3 DESIGN OPERATION CAPACITY
The plant must make the full guaranteed capacity of 3125 tpd of methanol and product
specifications at any composition within the above natural gas composition range during the
Performance Test and must be designed to operate safely under these conditions.
7. DISTILLATION
The design margin for the distillation unit will be 15% total margin on whole unit above
flowsheet conditions including the steam reboiler.
8. START-UP, IMPORT STEAM AND EXPORT STEAM
There are NO external facilities available. All steam is to be produced by the methanol plant
and its offsites.
9. NOISE
The maximum sound pressure level of any equipment shall not exceed 85 dBA in semi-
reverberant acoustic environment. Generally, the sound pressure level requirement must be
met at 1 m from the surface of any equipment. For air cooled exchangers, this requirement
must be met at ear level on the nearest walkway or maintenance platform.
The following specifications for Noise shall be followed:
7S72-EVS-00-001 Plant Noise Control
60-8579-02/N02a/0003 Equipment Noise Control
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APPENDIX 1 REFINED METHANOL SPECIFICATIONS
Federal Specification O-M-232K Methanol (Methyl Alcohol) 6810 GS 14-Oct-1998 and IMPCA 1999
Characteristic Federal Grade AA
IMPCA 1999
Method note1
Acetone (%w/w) Carbonylic compounds Note 3
0.002note2 Max 30
mg/kg note2
ASTM E 346-94note2
Acidity (% w/w as acetic acid) 0.003 Max 30 mg/kg
ASTM E 346-94note4
ASTM D 1613-96
Appearance
Free of opalescence,
suspended matter and sediment
Clear and free of suspended
matter
Visual
IMPCA 03-98
Carbonisable impurities colour, Pt-Co scale, maximum
No.30 ASTM E 346-94
Colour, Pt-Co scale, maximum No.5 ASTM D 1209-93
Distillation range at 760 mm Hg Range 1ºC, and shall include the
temp of 64.6ºC ± 0.1º
ASTM E 346-94
ASTM D 1078-97
Ethanol (% w/w) 0.001 50mg/kg ASTM E 346-94 or
IMPCA 001-98
Non-volatile matter 10 mg/100 ml Max
8 mg/kg ASTM D 1353-96
Odour Characteristic with no
residual ASTM D 1296-93
Permanganate time no discharge of colour in (mins)
60 ASTM D 1363-94
Specific gravity at 20ºC/20ºC 0.791 to 0.793 ASTM E 346-94 ASTM
D 891-95
Water (% w/w) 0.1 Max 0.1 ASTM E 346-94 ASTM
E 1064-92
Purity (% w/w) - Min 99.85 IMPCA 001-98
Chloride (ppm w/w) - Max 0.5 IMPCA 002-98
Sulphur (ppm w/w) - Max 0.5 ASTM D 3961-89
Hydrocarbons - pass test ASTM D 1722-90
Total iron (ppm w/w) - Max
0.1mg/kg ASTM E 394-94
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Notes
Note1. The figures after the hyphen in the ASTM standard number are the year of last
revision/update. Always check the current issue for the last update.
Note 2. This is a miscibility test with water, for AA grade use 1.5ml of sample and 3.5ml of water.
Note 3 Strictly in the IMPCA spec this is ‘carbonilic (or carbonyl) compounds’ Test ASTM E 346-94.
This uses Nessler's reagent, which is made using 13.6 g of mercuric chloride in 500ml of
water. Mercuric compounds have been banned or phased out in many countries and
laboratory methods because of environmental pollution restrictions.
A different wet chemistry method is available which is published as British Standard BS 506
part 2 1984 this is also ISO 506 revalidated 1992.
The method relies on the production of a red colour in alkaline conditions with 2.4 –
dinitrophenylhydrazine, which is measured spectrophotometrically at 445nm. The carbonyl
compounds are reported as formaldehyde within a range of 0.0002 to 0.01%w/w in the
methanol.
The theoretical equivalent to the 0.003 weight %(30 mg/kg) carbonyl compounds as acetone
of the pass/fail in ASTM D 1612 and ASTM E346 would be BS 507 result multiplied by a
factor MW acetone / MW formaldehyde 58.08/30.03.= 1.934 or pass fail at .00 155 weight %
formaldehyde.
However different individual carbonyl compounds will respond differently to the different
reagents and one test cannot be said to be exactly the same as the other. This BS test is
used by Johnson Matthey labs.
In view of the environmental constraints upon mercuric chloride reagent used in this test, it is
likely that the test method will be changed by IMPCA to an equivalent of the BS 507 test.
Note 4 The expected TMA content measured by ASTM Method E346-99 with the Extreme Lean Gas
feed is approximately 10 ppb.
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APPENDIX 2 SEA WATER ANALYSIS
WATER ANALYSIS SHEET
Submitted by: SMC Address Co.
FOR OFFICE USE ONLY: Location Water Co.
Submitted by: SMC Address Co
for office use only:
location water co.
No. mean max min design design
Note 1 ** ANALYSIS Date:
pH Value 8.3 to 8.5
Suspended Solids mg/l
Electrical Conductivity µS/cm @ 20°C 56446
Total Dissolved Solids as mg/l 37520
Temperature of Supply °C 28 16
Note 3 Alkalinity to pp as mg/l CO3 3.3
Alkalinity to m.o. as mg/l HCO3 191
Sulphate as mg/lSO4 2894
Chloride as mg/l C1 22524
Nitrate as mg/l NO3
Silica as received molybdate reactive. as mg/l SiO2
Phosphate as mg/l PO4
Fluoride as mg/l F
Sulphite as mg/l SO3
Total Anions (excluding silica) as mg/l CaCO3
Total Hardness as mg/l CaCO3
Calcium as mg/l Ca 2894
Magnesium as mg/l Mg 1442
*Sodium as mg/l Na 12785
*Potassium as mg/l K 359
Iron as mg/l Fe
Manganese as mg/l Mn
Free and Saline Ammonia as mg/l NH3
Total Cations as mg/l CaCO3
Free Dissolved CO2 as mg/l CO2
Dissolved O2 as mg/l O 6
Colour Hazen Units
Note 4 +Turbidity Formazin Units FTU APHA
Lead as mg/l Pb
Copper as mg/l Cu
Residual Chlorine as mg/l CI2 0.2 to 1.0
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WATER ANALYSIS SHEET
Submitted by: SMC Address Co.
FOR OFFICE USE ONLY:
Location Water Co.
Submitted by: SMC Address Co
for office use only:
location water co.
* *
Note 1 ANALYSIS
Sample No.
mean
Date 2000
Albuminoid Ammonia as mg/l NH3
Nitrous Nitrogen as mg/l N
Nitric Nitrogen as mg/l N
Note 3 Oxygen absorbed from Acidic N//80 KMn04 4hours @ 20°C as mg/l 0 <0.25
C.O.D. (Dichromate Value N/10) as mg/l 0
Total Organic Carbon as mg/l C 0.86
Oil (including grease and fats) as mg/l
Residue after heating to 500°C as mg/l
Note 4 B.O.D5 Nitrification Suppressed as mg/l
Anionic Synthetic Detergents as mg/l
Non-Ionic Detergents as mg/l
Cationic Detergents as mg/l
Silt Density Index
Notes: 1. ** - tick if item definitely to be included in analysis 2. State if units other than milligrams per litre, or if different conditions of test, are used 3. These are UK test conditions for water sample. Other European countries use
different test conditions (eg N/80 30 min @100°C). Effluents may be analysed by N/80 3 min @ 27°C or N/8 4 h. @ 27°C. Results from these different conditions are NOT interchangeable - conditions MUST be stated.. The test is sometimes called the PV or permanganate value, also results may be given as mg/l KMn04. Please specify accurately. A test reported as organic matter must state best method.
4. By addition of 0.5 mg allylthiourea per 1l of sample
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June, 2007
APPENDIX 3 DEMINERALIZED WATER QUALITY
1) Silica max.0.02 mg/kg 2) Na plus K max.0.01 mg/kg 3) Fe +Cu +Ni max.0.02 mg/kg 4) Electrical conductivity limit max.0.2 microsiemens/cm @25 deg C 5) Total Hardness detectable (below 0.05mg/l CaCO3 by micro titration test) 6) Particulate iron 0.1 mg/l SS max
Salalah Methanol Project
BASIC ENGINEERING
DESIGN DATA
(BEDD)
Doc. No. : 7S72-PRG-00-001
Rev. : 0
Page : 20 of 21
Date : 15th
June, 2007
APPENDIX 4 UTILITY WATER QUALITY
No. Description Unit Condition
Minimum Maximum
1 Sodium as Na mg/ℓ - 30
2 Calcium as Ca mg/ℓ 13 40
3 Chloride as Cl mg/ℓ - 40
4 Bicarbonate as
HCO3 mg/ℓ 20 40
5 Langelier Index - +0.2 +0.4
Salalah Methanol Project
BASIC ENGINEERING
DESIGN DATA
(BEDD)
Doc. No. : 7S72-PRG-00-001
Rev. : 0
Page : 21 of 21
Date : 15th
June, 2007
APPENDIX 5 POTABLE WATER QUALITY
No. Description Unit Condition
Minimum Maximum
1 Sodium as Na mg/ℓ - 30
2 Calcium as Ca mg/ℓ 13 40
3 Chloride as Cl mg/ℓ - 40
4 Bicarbonate as
HCO3 mg/ℓ 20 40
5 Langelier Index - +0.2 +0.4
6 Total Coliform most probable number per 100㎖ nil
7 E.Coli colony forming units per 100㎖ nil
SAMPLE
SAMPLE
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