Flue gas treatments to reduce nox and co emissions

Details Flue gas treatments to reduce nox and co emissions Flue gas treatments to reduce nox and co emissions

C - Chemistry, Metallurgy

01

B

C01B 21/00 (2006.01) B01D 53/86 (2006.01) B01J 38/36 (2006.01)

Patent

CA 2495321

The invention provides compositions and methods to reduce NOx emissions from the flue gas of a fluid catalytic cracking (FCC) unit (10). The invention also provides methods for reducing CO emissions from the regenerator (2) and/or the flue of an FCC unit. The compositions (4) of the invention comprise copper and/or cobalt and a carrier. The carrier can be, for example, hydrotalcite like compounds, spinels, alumina, zinc titanate, zinc aluminate, zinc titanate/zinc aluminate, and the like.

L'invention concerne des compositions et des procédés de réduction des émissions de NOx provenant des fumées d'une unité de craquage catalytique fluide (FCC) (10). L'invention concerne également des procédés de réduction des émissions de CO provenant d'un régénérateur (2) et/ou des fumées s'échappant d'une unité FCC. Les compositions (4) de cette invention renferment du cuivre et/ou du cobalt et un support. Ce dernier peut être, par exemple un composé de type hydrotalcite, des spinels, des alumines, un titranate de zinc, un aluminate de zinc, un titanate de zinc/aluminate de zinc et analogues.

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