Henry Henry TraylorTraylor UOP LLC, A Honeywell · PDF fileHenry Henry TraylorTraylor UOP LLC, A Honeywell Company ... Technologies Transportation ... Gifi Purified Syngas Gas Cooling
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The UOP The UOP SelexolSelexol™ Process: ™ Process: Efficient Acid Gas Removal Efficient Acid Gas Removal in Gasification Value Chainin Gasification Value Chain
The UOP The UOP SelexolSelexol™ Process: ™ Process: Efficient Acid Gas Removal Efficient Acid Gas Removal in Gasification Value Chainin Gasification Value ChainHenry Henry TraylorTraylorUOP LLC, A Honeywell CompanyUOP LLC, A Honeywell Company
in Gasification Value Chainin Gasification Value Chainin Gasification Value Chainin Gasification Value Chain
2013 Instituto Petroquímico Argentino (IPA) Conference
Honeywell’s Businesses• $37.6 billion in revenues in 2012, 50% outside of U.S.• Nearly 125,000 employees operating in 100 countries• 19,000 engineers and scientists • Morristown, NJ global corporate headquarters
Our technologies and products are designed to deliver superior performance,
Acid Gas RemovalAcid Gas Removal PSAPSA Sulfur RecoverySulfur Recovery
Ou tec o og es a d p oducts a e des g ed to de e supe o pe o a ce,safety and value when combined in an integrated system:
High availability and reliability of processes and products
Lower capital expenditure and operating costs resulting inLower capital expenditure and operating costs resulting inlower cost of production of hydrogen
Selexol Process… cost effective solution for H2S & CO2 removalUOP 6196-9
Selexol Process Overview
Absorption/regeneration process for selective removal of H2S, COS, RSH & CO2
– Uses SELEXOLTM physical solvent from Dow ChemicalUses SELEXOL physical solvent from Dow Chemical– Uses a typical solvent-extraction flow scheme– Loading directly proportional to partial pressure
Has unique selectivity characteristics that make it attractive for syngasand natural gas applicationsProduct Quality
– Can be essentially sulfur free
– Project specific CO2 capture and quality
– Project specific acid gas H2S j p g 2concentration
UOP 6196-10
Selexol Process in Syngas ApplicationsTypical Gasification ComplexTypical Raw Syngas H2 30 - 50% CO 30 - 50%
Typical Gasification Complex
Ar 0.5 - 1% N2 0.7 - 1.5% CO2 5 - 19% H2S 0.5 - 2%
COS
CO2No Shift, Full Shift or Partial Shift
COS 200-1000 ppmv Ni & Fe Carbonyls HCN, NH3 ...
Coal or PetCoke,Biomass
Treated Syngas
Raw Syngas
Gasifier SourShift
Selexol Unit
Partial Shift
Applications:
O2 H2S
Shift
Tail Gas
Unit Power SNG Chemicals Hydrogen Liquid Fuels
SulfurAir Separation
Sulfur Recovery
Liquid Fuels etc
UOP 6196-11
What is the SELEXOL Process?
Absorption/regeneration process for selective removal of H2S, COS, & CO2
– Uses a physical solventUses a physical solvent– Uses a typical solvent-extraction flow-scheme– Loading directly proportional to partial pressure
Physical vs Chemical
g
AcidGas
nt L
oadi
ng Chemical SolventPhysical Solvent
GasTreatedGas Typical
Gasification Application
Partial Pressure
Solv
en
FeedGas
Partial Pressure
High Pressure is advantageousUOP 6196-12
What is the SELEXOL Process?
A physical solvent– Polyethylene Glycol Dimethyl Ether
Chemical formula:– Chemical formula: CH3O(C2H4O)nCH3 where n has a specific distribution
– A clear fluid that looks like tinted waterR t d b h i t tRegenerated by changing pressure, temperature or applying a stripping gasUnique selectivity characteristics desirable for gasification
t tisyngas treating:– H2 ~ 1 :Relative Solubility Data– CO ~ 2.2– CO2 ~ 76– COS ~ 175
H S 680– H2S ~ 680Selexol = Selective
UOP 6196-13
Flow-scheme Applications
Two Basic Flow-schemes• Sulfur removal only
‒ Typically for power applications ‒ Can reduce treated gas any desired sulfur level
O l t b b ith l t ti‒ One solvent absorber with solvent regeneration
• Sulfur removal with separate CO2 removalSulfur removal with separate CO2 removal‒ Typically for applications producing hydrogen,
chemicals, SNG or coal-to-liquidsT i ll i l t i t d t‒ Typically involves more stringent product specifications
‒ Independent solvent absorbers with integrated l t tisolvent regeneration
UOP 6196-14
Two Basic Flow Schemes1. Selexol for Sulfur Removal Only
Power applications typically require sulfur removal only to 10 to 20 ppmv. Less than 1 ppmv can be achievedpp One solvent absorber with solvent
regeneration
H SAcidTreated
Lean SolutionFilter
H2SStripper
RefluxAccumulator
GasTreated
Gas
SulfurAbsorber Reflux
PumpH2SConcentrator
ExportWaterFeed
MakeupWater
StripperReboiler
Concentrator
PackinoxExchanger
WaterFeedGas
Exchanger
UOP 6196-15
Treated
Two Basic Flow Schemes2. Sulfur Removal & CO2 Capture
CO2
TreatedGas Tailored Design
Sulfur in treated gas as low as 0.1 ppmv Sulfur in CO as low as 2 ppmv
H SAcid
2Absorber
CO
Sulfur in CO2 as low as 2 ppmv CO2 purity as high as 99.7 mol% Tuned acid gas composition
Air SeparationAir Separation AmmoniaAmmoniaN2UAN Pl tUAN Pl t
NH3 Product
UAN
Air
Air SeparationAir SeparationUnitUnit SynthesisSynthesis UAN PlantUAN Plant UAN
Product
O2 High Purity H2 Purified CO2Raw
PolybedPolybedPSAPSA
Tail GasRaw CO2
COCO22PurificationPurification
CO2 VentH2
QuenchQuenchGasificationGasification
SyngasSyngasScrubbingScrubbing CO Shift & CO Shift &
Gas CoolingGas CoolingSelexolSelexol22--stagestage
Tail Gas
Petroleum Coke Claus PlantClaus Plant
Acid Gas
UOP 6196-21UOP TechnologiesUOP Technologies
Summary Proven technology, enhanced reliability and availability Efficient and high overall sulfur recovery Simple flow schemes & limited number of equipment Enhanced safety and reduced maintenance Selexol unit designed to operate even with loss of refrigeration at
reduced capacity Treat gases that other technologies cannot tolerate Treat gases that other technologies cannot tolerate Low CAPEX and OPEX
Customizable units Facilitates high pressure CO capture Facilitates high pressure CO2 capture System Integration (CO Shift/COS