Suppression of cos formation in molecular sieve purification...

Details Suppression of cos formation in molecular sieve purification... Suppression of cos formation in molecular sieve purification...

B - Operations, Transporting

01

D

183/35

B01D 53/02 (2006.01) C07C 7/13 (2006.01)

Patent

CA 1070249

SUPPRESSION OF COS FORMATION IN MOLECULAR SIEVE PURIFICATION OF HYDROCARBON GAS STREAMS ABSTRACT OF DISCLOSURE In the process for purifying hydrocarbon gas streams containing hydrogen sulfide and carbon dioxide as impurities by contact thereof with zeolitic molecular sieve adsorbents to selectively adsorb the impurities, the formation of carbonyl sulfide by the zeolite catalyzed reaction of H2S with CO2 is greatly suppressed by employing as the selective adsorbent certain cation forms of molecu- lar sieve zeolites which contain from 0.7 to 3 weight per cent adsorbed water. S P E C I F I C A T I O N - 1 -

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