Process for removing pollutants from nonzeolitic catalyst regene

Details Process for removing pollutants from nonzeolitic catalyst regene Process for removing pollutants from nonzeolitic catalyst regene

1978-07-10

1980-05-27

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208124, 423244, 423563, 252417, 252466R, 252455R, B01J 2906, C01G 1104, C01B 1700

Patent

active

042049440

ABSTRACT:
Carbon monoxide and sulfur oxides are removed from catalyst regenerator flue gas in an FCC system using a nonzeolitic cracking catalyst and sulfur from the flue gas is shifted to form hydrogen sulfide, which is recovered in the gases removed from the cracking reactor in the system by reacting carbon monoxide in the regenerator flue gas with oxygen in contact with a particulate carbon monoxide combustion promoter, reacting sulfur oxides in the regenerator flue gas with particulate alumina physically mixed with the nonzeolitic catalyst to form a sulfur-containing solid, and forming hydrogen sulfide in the cracking reactor by contacting the sulfur-containing solid with the hydrocarbon feed.

REFERENCES:
patent: 4071436 (1978-01-01), Blanton, Jr. et al.
patent: 4115250 (1978-09-01), Flanders et al.
patent: 4115251 (1978-09-01), Flanders et al.

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