Nox reduction composition for use in fcc processes

Details Nox reduction composition for use in fcc processes Nox reduction composition for use in fcc processes

C - Chemistry, Metallurgy

10

G

C10G 11/18 (2006.01) B01D 53/56 (2006.01) B01D 53/86 (2006.01) B01J 23/10 (2006.01) B01J 23/63 (2006.01) B01J 23/83 (2006.01) B01J 23/90 (2006.01) B01J 23/94 (2006.01) B01J 35/00 (2006.01) C10G 11/04 (2006.01)

Patent

CA 2468152

A composition for controlling Nox emission during FCC processes comprises (i) an acidic oxide support, (ii) cerium oxide, (iii) a lanthanide oxide other than ceria such as praseodymium oxide, and (iv), optionally, an oxide of a metal from Groups Ib and IIb such as copper, silver and zinc.

L'invention concerne une composition permettant de réguler les émissions d'oxyde d'azote pendant des procédés de craquage catalytique en lit fluidisés. Cette composition comprend (i) un support d'oxyde acide, (ii) de l'oxyde de cérium, (iii) de l'oxyde de lanthanide autre que l'oxyde de cérium, tel que l'oxyde de praséodyme, et (iv), éventuellement, un oxyde d'un métal des groupes Ib et Iib, tel que le cuivre, l'argent et le zinc.

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