Regeneration of sulfur-contaminated platinum-alumina catalyst

Details Regeneration of sulfur-contaminated platinum-alumina catalyst Regeneration of sulfur-contaminated platinum-alumina catalyst

1982-03-11

1983-03-22

Konopka, P. E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

208140, 252411S, B01J 2396, B01J 2120, C10G 3508

Patent

active

043774954

ABSTRACT:
Platinum-alumina catalysts deactivated by accumulations of sulfur and carbonaceous deposits are treated for removal of sulfur by contacting the deactivated catalyst with a hydrogen-rich gas, water or water precursor, a solution of liquid chlorinated hydrocarbon containing one to eight carbon atoms per molecule, in an oxygen-containing organic compound containing one to eight carbon atoms per molecule prior to contacting the deactivated catalyst with oxygen-containing regeneration gas for removal of coke deposits from the catalyst.

REFERENCES:
patent: 3622520 (1971-11-01), Hayes
patent: 3673109 (1972-06-01), Georgescu et al.
patent: 3935244 (1976-01-01), Hayes
patent: 4155836 (1979-05-01), Collins et al.
patent: 4191633 (1980-03-01), Dauber

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