Inert gas enrichment in FCC unit regenerators

Details Inert gas enrichment in FCC unit regenerators Inert gas enrichment in FCC unit regenerators

1982-04-09

1983-12-20

Davis, Curtis R.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208163, 502 41, C10G 1118, B01J 3714

Patent

active

044216360

ABSTRACT:
The concentration of sulfur trioxides in an FCC unit regenerator is maintained within environmentally accepted limits, while maintaining an adequate amount of gas for fluidizing conditions in the regenerator, by admixing the regenerator oxygen-containing gas with an inert gas. The quantity of the inert gas is controlled by a control loop measuring the pressure drop in the regenerator, and adjusting the amount of the inert gas to maintain the pressure drop within the predetermined limits.

REFERENCES:
patent: 2476144 (1949-07-01), Gullette
patent: 2684931 (1954-07-01), Berg
patent: 2758068 (1956-08-01), Howard
patent: 2985584 (1961-05-01), Rabo et al.
patent: 4007131 (1977-02-01), Gillespie et al.
patent: 4211636 (1980-07-01), Gross et al.
patent: 4235704 (1980-11-01), Luckenbach
patent: 4260518 (1981-04-01), Katzer et al.

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