SHAH GAS DEVELOPMENT PROJECT - UniverSUL … Flexorb from tank Propane Chiller M Propane Propane...
Transcript of SHAH GAS DEVELOPMENT PROJECT - UniverSUL … Flexorb from tank Propane Chiller M Propane Propane...
Abu Dhabi Gas Development Company Ltd.
AL HOSN GAS –
SHAH GAS
DEVELOPMENT
PROJECT
Abu Dhabi Gas Development Company Ltd. Page 2
THE COMPANY : AL HOSN GAS
• Shah Gas Development (SGD) Project:
– located 180km south-west of Abu Dhabi city
– near the Liwa Crescent in the emirate
– approximately 70km X 10km in area
– 60% - ADNOC & 40% - Oxy
Abu Dhabi Gas Development Company Ltd. Page 3
Well fluid – Sour Gas /
Condensate / Water
Slug Catcher Separation & Stabilization
Units
Acid Gas Removal Units
Gas Dehydration & NGL Recovery
Units
Hydrotreating Units
Sulphur Recovery Units
Condensate Storage Tanks
Liquid Sulphur Storage Tanks
Utilities Units
Sulphur Granulation
Plant
NGL Spheres
Flare
Sales Gas to Pilot Gas
Sales Gas
Sales Gas to Sulphur Station
NGL
CO2 Gas
Solid Sulphur
Condensate
Water from Well Fluid
Abu Dhabi Gas Development Company Ltd. Page 4
SHAH GAS PLANT
Abu Dhabi Gas Development Company Ltd.
SULPHUR RECOVERY
& TAIL GAS TREATING
UNIT
Abu Dhabi Gas Development Company Ltd. Page 6
SULPHUR RECOVERY & TAIL GAS TREATING
• SRU and TGT Unit consists of 4 x 25% identical parallel Units (0751-
0754) designed for a nominal Sulphur processing capacity of 2500
TPD per Train (10,000 TPD total)
• Objective is to reduce Atmospheric Sulphur Emissions and to produce
a Saleable Elemental Sulphur Product.
• Feed Acid Gas is from the following sources:
– Solvent regeneration Units (DGA Regeneration Units-0731-0734)
– Selexol Units (NGL Recovery Units 0741/0742)
Abu Dhabi Gas Development Company Ltd. Page 7
SULPHUR RECOVERY & TAIL GAS TREATING
SRU Design Features: • Fluor licensed two-stage Claus plant with hydrogenation/ amine tail gas
treating – BTX destruction – Dual thermal stages in each train – Reaction water used for boiler feed water make-up – Incinerator HRSGs to maximise energy efficiency
• ExxonMobil’s FLEXSORB® SE Plus used in the TGTU section – More cost effective than formulated MDEA
• Goar, Allison & Associates D’GAASS technology for sulphur degassing • Total Acid Gas Flow (one unit) – 199 Tons/hr with H2S – 62.5 mole.% • Sulphur Recovery - 99.9%+ • SO2 in Stack Gas - < 500 mg/m3
Abu Dhabi Gas Development Company Ltd. Page 8
SULPHUR RECOVERY & TAIL GAS TREATING
BFW
BFW
Acid Gas from Unit- 0731/0732/0733/0734
Acid Gas to Unit- 0752/0753/0754
Acid Gas KOD
Acid Gas Pre-heater
Air Pre-heater 751-E-102
Combustion Air Blowers 0751-B-101A/B/C
MP Fuel Gas
MP Fuel Gas
MB
MB RF
RF NO 1 WHB
NO 2 WHB
NO 1 Steam Drum
NO 2 Steam Drum
Chemical injection
Chemical injection
Process Gas to No.1 1st Condensor
Process Gas to No.1 2nd Condensor
Abu Dhabi Gas Development Company Ltd. Page 9
SULPHUR RECOVERY & TAIL GAS TREATING
Atm. Air
NO 1 Converter
NO 2 Converter NO 1
First Condenser
NO 2 First Condenser
Second Condenser
Third Condenser
Degassing Contactor
Sulphur Rundown Vessel
DeGassing Vent to Incinerator
Dry air
Tail Gas to TGTU Process Gas from No.1 WHB
Process Gas from No.2 WHB
DeGassed Sulphur to Storage Tanks
Abu Dhabi Gas Development Company Ltd. Page 10
SULPHUR RECOVERY & TAIL GAS TREATING
Tail Gas Heater
Reactor Effluent Cooler
Hydrogenation Reactor
Incinerator Heat Recovery System Generator Package
Lean Flexorb from tank
Propane Chiller
M
Propane
Propane
Rich Flexsorb for Regeneration
Tail Gas Trim Heater
Incinerator Air Blower
Tail Gas from 3rd Condenser
Abu Dhabi Gas Development Company Ltd. Page 11
SULPHUR RECOVERY & TAIL GAS TREATING
SULPHUR PRODUCT SPECIFICATIONS
Purity of Liquid Sulphur Product 99.9%
Sulphur Product Appearance (As a Solid) Bright Yellow
Sulphur Product Carbon Content ≤ 500 ppmw
Sulphur Product Acidity (As H2SO4) ≤ 50 ppmw
Sulphur Product H2S Content ≤ 10 ppmw
Sulphur Product Moisture Content ≤ 500 ppmw