Facilitated transport with ion-exchange membranes for coal gasification gas clean-up

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:5462370

Pellegrino, J J; Nassimbene, R D ^[1]; Jarr, L A ^[2]; Way, J D; Hapke, R L ^[3]

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1. National Inst. of Standards and Technology, Gaithersburg, MD (USA)
2. Morgantown Energy Technology Center (US)
3. SRI International, Arlington, VA (USA)

The use of facilitated transport in ion-exchange membranes to selectively remove CO/sub 2/ and H/sub 2/S from coal gasification process streams has been studied. Poly-perfluorol sulfonic acid (PFSA) membranes have been used as a support for ethylene d:amine, as the complexing agent. The separation of CO/sub 2/ and H/sub 2/S from H/sub 2/ and CO has been measured using a continuous flow membrane test module. Separation factors for CO/sub 2/ versus H/sub 2/ of 13 have been obtained using commercial films. By using a swelling procedure on the PFSA film, both the separation factor and the permeance of the membrane increases dramatically, with CO/sub 2//H/sub 2/ separation factors of 30. The authors present a process design analysis of this type of membrane operation as it could be used in the production of synthesis gas from coal.

• OSTI ID: 5462370
• Report Number(s): CONF-881143--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
010404 -- Coal
Lignite
& Peat-- Gasification
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
400201 -- Chemical & Physicochemical Properties
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
COAL GASIFICATION
COAL LIQUEFACTION PLANTS
FLUIDS
GASES
GASIFICATION
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
INDUSTRIAL PLANTS
ION EXCHANGE
MEMBRANES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PRODUCTION
SEPARATION PROCESSES
SULFIDES
SULFONIC ACIDS
SULFUR COMPOUNDS
SYNTHESIS GAS
TECHNOLOGY ASSESSMENT
THERMOCHEMICAL PROCESSES