United States Steel Corporation

Arthur Snyder

Stephen John Lewis

Stephen Lewis

Marvin C Fields

George L Brownell

Howard H Morgan, Jr

William E Hall

David L Oliver

Melba Collier

Display holder for garment and accessories

Display holder for attachment to garments and accessories

Carbonyl sulfide is removed from propylene by hydrolysis over a catalyst comprising platinum sulfide on alumina. Specifically, the propylene is passed through, successively, a C.sub.3 -splitter, a heater, the platinum sulfide catalyst bed, and a topping still where the resulting H.sub.2 S and CO.sub.2 are separated from the purified propylene.

Method of removal of COS from propylene

Gas stream mixtures including ethylene, acetylene, CO, CO.sub.2, water, alcohols, H.sub.2 S, propylene and heavier hydrocarbons, CS.sub.2, etc., are prepared for further treatment by removing the water, alcohols, CS.sub.2, H.sub.2 S, propylene and heavier hydrocarbons in separate solvent-absorption systems. In particular, coke oven gas is treated to remove water, CS.sub.2, H.sub.2 S, propylene and heavier hydrocarbons prior to contacting it with cuprous aluminum halide to effect removal by complexing of ethylene, acetylene and/or carbon monoxide; off-gas from the complexing ligand zone or elsewhere may be used to prestrip and/or regenerate the solvent in the absorption system. Very little energy is consumed, extraction efficiencies are very high, and fouling is avoided.

Gas preparation

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Arthur Snyder