Catalytic cracking with reduced emission of noxious gas

Details Catalytic cracking with reduced emission of noxious gas Catalytic cracking with reduced emission of noxious gas

1980-12-08

1982-04-20

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208164, 252417, 252411S, 423244, 423563, 423566, C10G 1100, B01J 4900

Patent

active

043258115

ABSTRACT:
A process for the control of sulfur oxide emissions from the regenerator of a fluid catalytic cracking unit which involves circulating solid particles through the process cycle which comprise cracking catalyst and a regenerable sulfur oxide absorbent, absorbing sulfur oxides with the particles in the regeneration zone, withdrawing a stream of particles from the regeneration zone and passing the stream to a reducing zone, contacting the particles in the reducing zone with a reducing gas to release absorbed sulfur oxides as a sulfur-containing gas, and returning the stream to the inventory of solid particles which is circulated between the reaction and regeneration zones. The reducing gas comprises at least one component selected from the group consisting of hydrogen and hydrocarbons, and the process conditions in the reducing zone can be adjusted to optimize the release of absorbed sulfur oxides.

REFERENCES:
patent: 3653833 (1972-04-01), Watson et al.
patent: 3778501 (1973-12-01), Lang et al.
patent: 3832445 (1974-08-01), Kouwenhoven et al.
patent: 3892677 (1975-07-01), Naber et al.
patent: 4001375 (1977-01-01), Longo
patent: 4071436 (1978-01-01), Blanton, Jr. et al.
patent: 4091076 (1978-05-01), Vogel et al.
patent: 4146463 (1979-05-01), Radford et al.
patent: 4207304 (1980-06-01), Beavon
patent: 4233276 (1980-11-01), D'Souza et al.
patent: 4280898 (1981-07-01), Tatterson et al.

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