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US 2013/0156669 A1Published application
Catalysts for nox reduction employing h2 and a method of reducing nox
AssigneeHeesung Catalysts Corporation
InventorsHyun-Sik Han, Eun-seok Kim, Gon Seo, Se-Min Park, Yun-Je Lee
Life of this patent
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Abstract
Disclosed is a catalyst composition for reducing NOx through two steps including reacting NOx with H2 thus producing ammonia which is then reacted with NOx, instead of direct NOx reduction by H2, and a method of reducing NOx using the catalyst composition.
Claims5
1-7. (canceled)
A method of reducing NOx, comprising contacting NOx at from 150 to 350° C. with H2 as a reducing agent in the presence of a mixed oxide catalyst comprising one or more A metal oxides selected from the group consisting of Fe2O3, CO2O3, NiO and CuO;
- and one or more B metal oxides selected from the group consisting of V2O5, Cr2O3, MnO2 and MoO3, which are co-precipitated and mixed.
Dependencies are inferred from the claim text.