Process for regenerating a hydrocarbon hydroconversion catalyst

Details Process for regenerating a hydrocarbon hydroconversion catalyst Process for regenerating a hydrocarbon hydroconversion catalyst

1987-08-25

1989-07-18

Konopka, Paul E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Reforming

208139, 502 37, 502 49, 502 52, C10G 3509, C10G 4906, B01J 3820, B01J 2396

Patent

active

048490920

ABSTRACT:
The invention concerns a process for regenerating a hydrocarbon hydroconversion catalyst containing a carrier, at least one group VIII noble metal and a halogen or halogenated compound.
It is characterized by an operation in two regeneration zones (1) and (2). The gas effluent from the first regeneration zone (1) is used to feed the second regeneration zone. During the step of burning coke deposited onto the catalyst in the first zone, the heat amount generated during the combustion is used for preheating the feed of said first zone. The temperature of the effluent of said first zone is reduced, through said exchanger, to a value adapted to perform the burning step in the second zone. Additional air is supplied before introducing the gas into said second zone (2) in order to obtain a suitable oxygen concentration.

REFERENCES:
patent: 3000814 (1961-09-01), Hemminger et al.
patent: 3875049 (1975-04-01), Kluksdahl
patent: 4058450 (1977-11-01), La Page et al.
patent: 4133743 (1979-01-01), Boret et al.
patent: 4213849 (1980-07-01), Engelhard et al.
patent: 4218338 (1980-08-01), Huin et al.
patent: 4329258 (1982-05-01), Engelhard et al.

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