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:
Feb. 18, 2003
Filed:
Apr. 04, 2001
Larry E. Campbell, Knoxville, TN (US);
Gregory J. Wagner, Knoxville, TN (US);
EmeraChem, LLC, Knoxville, TN (US);
Abstract
A process for adjusting the ratio of sulfur dioxide to hydrogen disulfide from the regeneration of 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 Ti O, (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 copper oxide. The system first captures the gaseous sulfur compounds. Then the captured gaseous sulfur compounds are then desorbed as mainly H S and SO, in higher concentrations in a separate isolated lower flow stream in a ratio determined by the amount of modifier in the catalyst. The higher concentrations may be processed to less noxious or useful sulfur materials and the catalyst/sorber is regenerated.