Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Patent
1992-09-08
1994-03-29
Straub, Gary P.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
423229, 4232427, 42324301, 423563, C01B 1700
Patent
active
052982289
ABSTRACT:
An improved method of reducing the concentration of carbonyl sulfide in a hydrocarbon gas containing carbonyl sulfide, which method comprises (a) feeding the hydrocarbon gas containing carbonyl sulfide to a hydrolysis section to contact the hydrocarbon gas with hot aqueous absorbent to heat the hydrocarbon gas to form hydrolysis section effluent absorbent and hydrolysis section effluent gas containing carbon dioxide and hydrogen sulfide and having a lower concentration of carbonyl sulfide than the hydrocarbon gas; (b) withdrawing and cooling the hydrolysis section effluent absorbent to form a cool aqueous absorbent; (c) cooling the hydrolysis section effluent gas in a cooling section by contacting the hydrolysis section effluent gas with the cool aqueous absorbent to form warm aqueous absorbent and a cooling section effluent gas containing hydrogen sulfide and carbon dioxide; (d) heating the warm aqueous absorbent to form hot aqueous absorbent; (e) feeding the hot aqueous absorbent to the hydrolysis section; and, (f) recovering the cooling section effluent gas as product and an apparatus for treating hydrocarbon gas.
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Morrison Thomas G.
Palomares S. Travis
Atlantic Richfield Company
Pruitt Tom F.
Straub Gary P.
Vanoy Timothy C.
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