Non-zeolite base metal SCR catalyst

Details Non-zeolite base metal SCR catalyst Non-zeolite base metal SCR catalyst

2011-07-26

2011-07-26

Vanoy, Timothy (Department: 1734)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

C423S213200, C060S301000

Reexamination Certificate

active

07985391

ABSTRACT:
A method of converting nitrogen oxides in a gas stream to nitrogen comprises contacting the nitrogen oxides with a nitrogenous reducing agent in the presence of a non-zeolite base metal catalyst consisting of: (a) at least one transition metal dispersed on a mixed oxide or composite oxide or a mixture thereof as support material consisting of cerium and zirconium; or (b) cerium oxide and zirconium oxide as single oxides or a composite oxide thereof or a mixture of the single oxides and the composite oxide dispersed on an inert oxide support material, whereon is dispersed at least one transition metal.

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