Process for the purification of carbon dioxide

Details Process for the purification of carbon dioxide Process for the purification of carbon dioxide

1994-08-25

1997-10-07

Langel, Wayne

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423231, 42324401, 42324406, 423564, 4235731, C01B 1702, C01B 1716

Patent

active

056744633

ABSTRACT:
Sulfur compounds are removed from gaseous carbon dioxide by contacting the carbon dioxide with water vapor in the presence of a carbonyl sulfide hydrolysis catalyst, thereby converting carbonyl sulfide in the gas stream to hydrogen sulfide, contacting the resulting gas stream with ferric oxide, thereby removing hydrogen sulfide from the gas stream as elemental sulfur, and contacting the remaining gas stream with copper oxide, zinc oxide or mixtures of these, thereby removing any remaining sulfur compounds from the gaseous carbon dioxide.

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