Method and apparatus for catalytically cracking hydrocarbons

Details Method and apparatus for catalytically cracking hydrocarbons Method and apparatus for catalytically cracking hydrocarbons

1975-01-17

1976-06-22

Levine, Herbert

Chemistry: physical processes

Physical processes

Crystallization

23288B, 23288E, 208 74, 208 75, 208155, 208156, B01J 818

Patent

active

039648761

ABSTRACT:
An apparatus for catalytically cracking hydrocarbons comprising a riser reactor having a plurality of catalyst injectors positioned along the length thereof. Adjacent to and upstream of certain of the catalyst injectors, cyclone separators are connected to the reactor so that fluid which contains a partially converted or cracked hydrocarbon and catalyst pass therethrough for separating the catalyst from the fluid with the fluid being returned to the reactor. Fresh catalyst is introduced into the fluid after same exits the separator to continue the cracking process. Steam can also be introduced into the reactor adjacent the catalyst injectors.

REFERENCES:
patent: 2327489 (1943-08-01), Becker
patent: 2766185 (1956-10-01), Pansing
patent: 3186805 (1965-06-01), Gomory
patent: 3347778 (1967-10-01), Dill et al.

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