Sulfur oxides control in cracking catalyst regeneration

Details Sulfur oxides control in cracking catalyst regeneration Sulfur oxides control in cracking catalyst regeneration

C - Chemistry, Metallurgy

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196/109, 252/51

C10G 11/04 (2006.01) B01J 21/12 (2006.01) B01J 29/90 (2006.01) C10G 11/05 (2006.01) C10G 11/18 (2006.01)

Patent

CA 1145700

ABSTRACT OF THE DISCLOSURE In removing sulfur oxides from flue gas in a cracking catalyst regenerator in the presence of a silica- containing particulate catalyst by reacting the sulfur oxides with alumina in a particulate solid other than the catalyst, activity loss in the alumina as a result of migration of silica from the catalyst particles to the alumina-containing particles is decreased by using alumina-containing particles which contain sodium, manganese or phosphorus.

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