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:
Oct. 07, 1997
Filed:
Aug. 25, 1994
Applicant:
Inventors:
Loc H Dao, Bound Brook, NJ (US);
Clair Wheeler, Basking Ridge, NJ (US);
Assignee:
The BOC Group, Inc., New Providence, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ;
U.S. Cl.
CPC ...
423230 ; 423231 ; 42324401 ; 42324406 ; 423564 ; 4235731 ;
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.