Composite of manganese-based oxide and zeolite useful as nh3-scr catalyst
OwnerDengsong ZHANG, Penglu WANG +3inventors
InventorsDengsong ZHANG, Penglu WANG, Lupeng HAN, Yuejin LI, Yufen HAO
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Abstract
The present invention relates to an NH3-SCR catalyst comprising a composite of manganese oxide, cerium oxide and a molecular sieve, wherein the molecular sieve is present in an amount of 20% to 70% by weight, based on the total weight of the composite. The present invention also relates a sol-gel process for preparing the NH3-SCR catalyst, a SCR catalytic article comprising the NH3-SCR catalyst, and an exhaust gas treatment system comprising the SCR catalytic article.
Claims21
1-22. (canceled)
An NH3-SCR catalyst, which comprises, particularly consists of, a composite of manganese oxide, cerium oxide and a molecular sieve, wherein the molecular sieve is present in an amount of 20% to 70% by weight, based on the total weight of the composite.
Dependencies are inferred from the claim text.