Title:
ELIMINATION OF GAS COMPONENT EXISTENT IN GAS STREAM
Document Type and Number:
Japanese Patent JPS52152888
Kind Code:
A
Abstract:
A membrane suitable for absorbing a gas component present in a gaseous stream (e.g. carbon dioxide from a hydrogen feed for an alkaline fuel cell) comprises a porous layer of hydrophilic material, both faces of which are covered by a layer of mixture of 10 to 90 wt.% of a hydrophobic substance and 90 to 10 wt.% of a hydrophilic substance, the hydrophilic portions of the three layers being impregnated with a carbon dioxide hydration catalyst e.g. sodium meta arsenite, at a concentration of 0.1 to 3M and a 2 to 14N alkali metal buffer solution. The gaseous component is absorbed from a gaseous stream containing said component by causing said stream to flow adjacent to a humidified stripping gas having a relative humidity of 0.4 to 0.95, the flows of said stream and said stripping gas being separated by the membrane.
Inventors:
RICHIYAADO JIEEMUSU BEROOZU
Application Number:
JP6723077A
Publication Date:
December 19, 1977
Filing Date:
June 07, 1977
Export Citation:
Assignee:
EXXON RESEARCH ENGINEERING CO
International Classes:
B01D53/62; B01D53/86; B01J23/18; B01J35/02; B01D53/22; C01B3/50; C01B3/58; (IPC1-7): B01D53/16; B01J23/18; B01J31/02; C01B1/35
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