NO.sub.x reduction compositions for use in FCC processes

Details NO.sub.x reduction compositions for use in FCC processes NO.sub.x reduction compositions for use in FCC processes

1997-04-28

2000-11-07

Griffin, Walter D.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

20812001, 20812015, 20812025, 502304, 502341, 502344, 502345, 502346, 502347, 502348, 4232391, 423247, C10G 1102, B01J 2104, B01J 2310, B01J 2383

Patent

active

061431672

ABSTRACT:
Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen storage capability, and (iv) a transition metal selected from Groups Ib and/or IIb of the Periodic Table provide NO.sub.x control performance in FCC processes. The acidic oxide support preferably contains silica alumina. Ceria is the preferred oxygen storage oxide. Cu and Ag are preferred Group I/IIIb transition metals. The compositions are especially useful in the cracking of hydrocarbon feedstocks having above average nitrogen content.

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