Processes for removing carbonyl sulfide from hydrocarbon feedstr

Details Processes for removing carbonyl sulfide from hydrocarbon feedstr Processes for removing carbonyl sulfide from hydrocarbon feedstr

1990-11-13

1992-04-14

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423220, 423228, 423232, 423243, 4232452, C01B 1700, C01B 1716, C01B 3120

Patent

active

051046300

ABSTRACT:
Processes are disclosed for purifying hydrocarbon feedstreams, e.g, natural gas, to remove carbonyl sulfide and other acid gases such as carbon dioxide and hydrogen sulfide. The processes employ a conversion step to convert carbonyl sulfide to hydrogen sulfide and carbon dioxide followed by an absorption step to remove the carbon dioxide and hydrogen sulfide from the feedstream. Carbonyl sulfide is converted to carbon dioxide and hydrogen sulfide in the presence of an aqueous alkaline solution which preferably has the same composition as the absorption solution used in the absorption step.

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patent: 4233141 (1980-11-01), Beavon et al.
patent: 4336233 (1982-06-01), Appl et al.
patent: 4717552 (1988-01-01), Carnell et al.
patent: 4957715 (1990-09-01), Grover et al.

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