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:
Aug. 24, 1982
Filed:
Mar. 16, 1981
Applicant:
Inventors:
Robert P Cahn, Millburn, NJ (US);
John M Longo, New Providence, NJ (US);
Assignee:
Exxon Research & Engineering Co., Florham Park, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
423230 ; 423244 ; 423263 ; 423539 ;
Abstract
A gas containing oxygen, H.sub.2 S and sulfur oxides is desulfurized by contacting same with cerium oxide at a temperature of from about 350.degree.-600.degree. C. This invention is particularly useful for desulfurizing tail gas from a Claus plant. In a preferred embodiment the cerium oxide is supported on alumina and oxygen is present in the gas in an amount more than that stoichiometrically required to convert the H.sub.2 S and SO.sub.2 to cerium oxysulfate.