Process for regenerating a solid copper-chromium reactant used i

Details Process for regenerating a solid copper-chromium reactant used i Process for regenerating a solid copper-chromium reactant used i

1976-01-19

1977-02-15

Douglas, Winston A.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

208138, 252419, 423230, 423648, B01J 2392, B01J 2394

Patent

active

040081745

ABSTRACT:
A process is disclosed for regenerating a solid reactant comprising a copper component and a chromium component disposed on a porous carbon support when the reactant has been expended by reaction with hydrogen sulfide contained in hydrogen recycle gas in a hydrocarbon reforming system, regeneration being accomplished by: (a) contacting the expended solid reactant with dilute oxygen in an inert diluent gas at a temperature in the range from 200.degree. to 425.degree. F; (b) contacting the solid material from step (a) with hydrogen at a temperature in the range from 300.degree. to 500.degree. F; and (c) contacting the solid material resulting from step (b) with an inert gas at a temperature in the range from 400.degree. to 600.degree. F.

REFERENCES:
patent: 1947776 (1934-02-01), Huff
patent: 2747968 (1956-05-01), Pigache
patent: 3576596 (1971-04-01), Kraml et al.
patent: 3778501 (1973-12-01), Lang et al.
patent: 3883637 (1975-05-01), Benedict

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