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AssigneeE.I. du Pont de Nemours and Company
InventorsDale Robert Coulson, Norman Herron, Kostantinos Kourtakis, Stephen E. Lyke
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Carbon monoxide and carbonyl sulfide emissions are reduced in manufacturing processes, including titanium tetrachloride production processes. Gas is contacted with CO, COS, and an oxygen-containing gas with a suitable catalyst. The catalyst may be a metal oxide catalyst containing bismuth, cobalt and nickel, a xerogel or aerogel catalyst containing Au, Rh, Ru and Co in aluminum oxide/oxyhydroxide matrices, or a supported metal catalyst that contains at least one metal from the group Pd, Rh, Ru and Cu. In the latter case, the catalyst support is contains alumina or carbon. A catalyst composite of Au, Rh, Ru and Cr, and cerium oxide and lanthanum oxide may also be used.
A process for converting carbon monoxide (CO) to CO2, and for converting carbonyl sulfide (COS) to SOx where x is 2 or 3;
The process of claim I wherein the ratio of oxygen in the oxygen-containing gas to carbon monoxide is from about 0.75:1 to about 1:1.
A process for converting carbon monoxide (CO) to CO2, and for converting carbonyl sulfide (COS) to SOx where x is 2 or 3;
A process for converting carbon monoxide (CO) to CO2, and for converting cairbonyl sulfide (COS) to SOx where x is 2 or 3;
A process for converting carbon monoxide (CO) to CO2, and for converting carbonyl sulfide (COS) to SOx where x is 2 or 3;
Dependencies are inferred from the claim text.