Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1998-07-10
2000-03-14
Griffin, Steven P.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502304, 502327, 502330, 502331, 502349, 502353, 502407, 502415, B01J 2002, B01J 2338
Patent
active
060373075
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.
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Campbell Larry E.
Wagner Gregory J.
Goal Line Environmental Technologies LLC
Griffin Steven P.
Johnson Kenneth H.
Vanoy Timothy C
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