Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Treating with a liquid or treating in a liquid phase,...
Patent
1982-04-09
1984-04-10
Konopka, P. E.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Treating with a liquid or treating in a liquid phase,...
208246, 502517, B01J 2034, C10G 2916, C10G 2904
Patent
active
044422210
ABSTRACT:
A process for regenerating a spent copper-porous refractory metal oxide carrier composite sorbent for removing sulfur-containing compounds from naphthas in which the spent sorbent is optionally stripped of absorbed naphtha, oxidized to convert absorbed sulfur to sulfates or sulfur dioxide, optionally reduced to further convert absorbed sulfur to sulfur dioxide, and, finally, impregnated with fresh copper via contact with an aqueous solution of a copper salt followed by drying and calcining to convert the salt to copper oxide or copper metal whereby a substantial portion of the sulfur sorbent activity and lifetime of the sorbent is restored.
REFERENCES:
patent: 2381659 (1945-08-01), Frey
patent: 4008174 (1977-02-01), Jacobson et al.
patent: 4163708 (1979-08-01), Jacobson et al.
patent: 4204947 (1980-05-01), Jacobson et al.
Bishop, III Keith C.
Blakely, deceased Donald W.
Earls David E.
Jacobson, administrator by Robert L.
Robinson Richard C.
Chevron Research Company
Konopka P. E.
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