Regeneration of metal promoted platinum group catalyst by superh

Details Regeneration of metal promoted platinum group catalyst by superh Regeneration of metal promoted platinum group catalyst by superh

1976-12-22

1979-04-10

Douglas, Winston A.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

208140, 252419, 260668A, 2606735, B01J 2396, B01J 2120, C10G 3508, C07C 1500

Patent

active

041487494

ABSTRACT:
Process for regenerating hydrocarbon conversion catalysts, particularly for reforming and isomerization, which comprises superhalogenating the deactivated catalysts, burning the accumulated coke in a controlled manner preferably in a series of steps at different temperatures and oxygen percentages with an oxygen containing gas stream; treating the combusted catalyst with a further gas stream containing oxygen and a halogen (preferably chlorine), and thereafter reducing the catalyst with hydrogen in the practical absence of oxygen.

REFERENCES:
patent: 3117076 (1964-01-01), Brennan et al.
patent: 3278419 (1966-10-01), Coe et al.
patent: 3496096 (1970-02-01), Kluksdahl
patent: 3537980 (1970-11-01), Kluksdahl
patent: 3558479 (1971-01-01), Jacobson
patent: 3625860 (1971-12-01), Condrasky
patent: 3634292 (1972-01-01), Hayes
patent: 3725249 (1973-04-01), Vesely et al.
patent: 3835063 (1974-09-01), Davis, Jr. et al.
patent: 3904510 (1975-09-01), Sinfelt et al.

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