Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By addition of extraneous agent – e.g. – solvent – etc.
Patent
1982-07-13
1984-04-24
Thomas, Earl C.
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By addition of extraneous agent, e.g., solvent, etc.
210749, 208244, 423244, 585856, 502 31, C01C 7148, B01D 5334
Patent
active
044449879
ABSTRACT:
In a method of removing carbonyl sulfide from propylene by hydrolysis over a catalyst comprising platinum sulfide on alumina, the improvement comprising regenerating the catalyst by contacting the catalyst with a solvent for polypropylene under conditions such that any polypropylene on the catalyst will be readily dissolved. Specifically, the propylene is passed through, successively, a C.sub.3 -splitter, a heater, the platinum sulfide catalyst bed, and a topping still where resulting H.sub.2 S and CO.sub.2 are separated from the purified propylene. A preferred solvent is liquid propylene.
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Chemical Abstracts, 1978, 89/11448r.
Brownell George L.
Collier Melba J.
Hall William E.
Morgan, Jr. Howard H.
Snyder A. R.
Goodson W. Gary
Thomas Earl C.
U.S. Steel Corporation
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