Process for passivating a prophoric catalyst and taking a hydrog

Details Process for passivating a prophoric catalyst and taking a hydrog Process for passivating a prophoric catalyst and taking a hydrog

1975-04-18

1977-06-14

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

208216, 252419, 423574R, B01J 2392, B01J 2394

Patent

active

040295990

ABSTRACT:
A process for taking out of operation a reactor containing catalyst which has been used for hydrogenation of a fluid feed, which process comprises contacting the catalyst at low temperature with ever increasing amounts of an oxygen-containing gas until no substantial heat is generated within the reactor and the oxygen partial pressure of gas in the reactor is at least 0.2 kg/cm.sup.2.

REFERENCES:
patent: 3505206 (1970-04-01), Decker
patent: 3505207 (1970-04-01), Haney et al.
patent: 3563915 (1971-02-01), Eisenhauer et al.
patent: 3756961 (1973-09-01), Francis et al.
patent: 3764558 (1973-10-01), Tse et al.
patent: 3838066 (1974-09-01), Lovell
patent: 3848071 (1974-11-01), Groenendaal

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