Reducing sulfur trioxide concentration in regeneration zone flue

Details Reducing sulfur trioxide concentration in regeneration zone flue Reducing sulfur trioxide concentration in regeneration zone flue

1981-09-01

1983-07-26

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208DIG1, 252411S, 252417, 252419, C10G 1118, B01J 3714

Patent

active

043953255

ABSTRACT:
Sulfur trioxide concentration in the flue gas of catalytic cracking regenerators is maintained at a predetermined level by controlling the flow rate of oxygen-containing regeneration gas into the regenerator, and, optionally, the amount of carbon monoxide combustion promoter in the regenerator.

REFERENCES:
patent: 4153535 (1979-05-01), Vasalos et al.
patent: 4235704 (1981-11-01), Luckenbach
patent: 4252636 (1981-02-01), Mooi
patent: 4274942 (1981-06-01), Bartholic et al.
patent: 4282084 (1981-08-01), Gross et al.
McArthur et al.; Oil & Gas Journal; "Catalytic Control of FCC SO.sub.x Emission Looking Good;" Feb. 23, 1981, pp. 55-59.

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