AMINE GUARDTM FS PROCESS

GAS PROCESSING

Amine Guard FS process technology combines the highperformance, formulated, UCARSOL® family of sol-vents with the reliable Amine Guard system processtechnology. The thermally regenerated and/or flash-regenerated solvent process removes CO2, H2S andother sulfur components.

Hydrocarbon, H2 and CO losses are minimal in theAmine Guard FS process due to their low solubility in the UCARSOL solvent. The process is capable ofachieving very low product gas specifications, to 1 ppmv of H2S and 50 ppmv of CO2. There are alsoenergy efficient process optimizations available, such asa flash-regenerated flowscheme for bulk CO2 removal.

APPLICATIONS

The Amine Guard FS process can be tailored for eitherbulk, selective, or trace acid gas removal for CO2 andH2S. It is typically used in:

� Synthesis gas treating for CO2 removal in syn-thesis gas plants, such as direct iron ore reduction

� Synthesis gas treating for selective H2S removalin integrated gasification combined cycle(IGCC) plants

� Natural gas treating for selective removal of H2Sand partial removal of CO2 for pipeline specifi-cations

� High CO2 partial pressure service for reducedenergy consumption compared with conventionalamines, such as steamed reformed ammoniaplants.

Design packages ranging from functional process speci-fications through a complete UOP Schedule A areoffered to support this technology. As with all ourprocesses, service is always readily available throughUOP’s worldwide technical service organization.

FEEDSTOCK AND PRODUCTS

Acid gas partial pressure is the key driving force for theAmine Guard FS process. Typical feed conditions rangebetween 150 and 1800 psia total pressure, with acid gascompositions from 5% to 35% by volume. The productspecifications achievable depend on the application andcan be anywhere from ppmv levels of acid gas to a fewpercent of CO2.

EXPERIENCE

The Amine Guard FS technology was introduced 19years ago. As of January, 2000, over 400 units havebeen put into commercial service.

FOR MORE INFORMATION

For more information, contact your local UOP sales officeor UOP’s Gas Processing business in the USA at:

Phone: (713) 744-2860Fax: (713) 744-2802E-mail: GasProc@uop.com

UCARSOL® is a registered trademark of Union Carbide Corporation.

©2000 UOP LLC. All rights reservedThis information is not to be taken as a warranty or representation for which UOPassumes legal responsibility nor as permission or recommendation to practice anypatented invention without a license. It is offered solely for your consideration.

UOP 3205-899GP1A

uopTM

UOP LLC25 East Algonquin RoadDes Plaines, IL 60017-5017

Absorber

Stripper

Treated Gas

FlashDrum

Lean/RichExchanger

UntreatedFeed

Acid Gas

CondenserReflux Drum Lean

Cooler

RichGas

RefluxPump

Amine Guard FS ProcessLow Energy CO2 Removal

Make-UpWater

LeanSolutionCooler

AmineAbsorber

AmineStripper

RefluxPump

Acid GasKnock-Out

Drum

Acid GasAcid GasCoolerAcid Gas

Lean SolutionPump

Lean/RichExchanger

AmineReboiler

FeedGas

Amine Guard FS ProcessSelective H2S