8-Ring Small Pore Molecular Sieve with Promoter to Improve Low Temperature Performance
AssigneeBASF SE
InventorsJaya L. Mohanan, Patrick Burk, Makato Nagata, Yasuyuki Banno, Eunseok Kim
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Abstract
Described is a selective catalytic reduction catalyst comprising an 8-ring small pore molecular sieve promoted with copper and an alkaline earth component. The catalyst is effective to catalyze the reduction of nitrogen oxides (NOx) in the presence of a reductant. A method for selectively reducing nitrogen oxides is also described.
Claims20
A selective catalytic reduction catalyst comprising an 8-ring small pore molecular sieve promoted with copper and an alkaline earth component, wherein the catalyst is effective to catalyze the reduction of nitrogen oxides in the presence of a reductant.
A method for selectively reducing nitrogen oxides (NOx), the method comprising contacting an exhaust gas stream containing NOx with a selective catalytic reduction catalyst comprising an 8-ring small pore molecular sieve promoted with copper and an alkaline earth component.
Dependencies are inferred from the claim text.