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:
Mar. 14, 2000
Filed:
Jul. 10, 1998
Larry E Campbell, Knoxville, TN (US);
Gregory J Wagner, Knoxville, TN (US);
Abstract
A system for treating the exhaust of an industrial process or combustion source to remove gaseous sulfur compounds which includes contacting the exhaust containing gaseous sulfur compounds with a catalytic system of a structured support for example a monolith coated with: (i) a metal oxide sorber component selected from the group consisting of Ti, Zr, Hf, Ce, Al, Si and mixtures thereof, for example TiO.sub.2 (ii) a precious metal component, for example Pt metal and optionally (iii) a modifier consisting of an oxide Ag, Cu, Bi, Sb, Sn, As, In, Pb, Au or mixtures thereof, such as Cu as a compound. The system captures the gaseous sulfur compounds. Gaseous sulfur compounds are then driven off as mainly H.sub.2 S and SO.sub.2 in higher concentrations in a separate isolated lower flow stream. The higher concentrations are easier to process to less noxious or useful sulfur materials and the catalyst/sorber is regenerated. The system also removes carbon monoxide by the oxidation of the carbon monoxide to carbon dioxide.