The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 1992
Filed:
Nov. 13, 1990
Applicant:
Inventors:
Ervine S Holmes, Yorktown Heights, NY (US);
Alexander J Kosseim, Rye, NY (US);
Assignee:
UOP, Des Plaines, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ; C01B / ;
U.S. Cl.
CPC ...
423242 ; 423220 ; 423228 ; 423232 ; 423243 ; 4232452 ;
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.