Harry F Jacobs

US Patent:

48390267, Jun 13, 1989

Filed:

Jun 28, 1985

Appl. No.:

6/750645

Inventors:

Stanley M. Brown - Scotch Plains NJ
John W. Byrne - Saddle Brook NJ
Harry E. Jacobs - Glenwood IL

Assignee:

Atlantic Richfield Company - Los Angeles CA

International Classification:

C10G 1102
C10G 1104
C10G 1105
C10G 1118

US Classification:

208120

Abstract:

Sulfur oxides are removed at least partially from the gaseous regenerator effluent of a fluid catalytic cracking unit operated with feedstock containing sulfur compounds and converted to hydrogen sulfide in the cracking zone by associating sulfur oxides in the gas with at least one rare earth compound, preferably cerium or a rare earth mixture rich in cerium, supported on discrete particles of alumina. The alumina particles may be a component of particles of a composite fluid cracking catalyst or separate fluidizable entities other than cracking catalyst and physically admixed with the catalyst particles.