Heesung Catalysts Corporation

Basf Corporation

N.e. Chemcat Corporation

Hyundai Motor Company

Kia Motors Corporation

Basf Mobile Emissions Catalysts LLC

Heesung Cataysts Corporation

Eunseok Kim

Patrick L Burk

Jaya L Mohanan

Yasuyuki Banno

Makoto Nagata

Michael Breen

Barbara K Slawski

Jaya L Monahan

Chang Hwan Kim

Pyung Soon Kim

Young Jin Kim

Wen-Mei Xue

Claudia Zabel

Matthias Peter

Maria Heenemann

Yong Sul Kim

Makato Nagata

David Pollick

Narayana K Rao

Barbara Slawski

The present invention relates to a composition comprising a non-zeolitic oxidic material comprising alumina; an 8-membered ring pore zeolitic material comprising one or more of copper and iron, wherein the framework structure of the zeolitic material comprises a tetravalent element Y, a trivalent element X and oxygen, wherein the molar ratio of Y:X, calculated as YOXO, is in the range of from 2:1 to 40:1; wherein at least part of the outer surface of the zeolitic material is covered by a layer comprising the non-zeolitic oxidic material; wherein Y comprises one or more of Si, Sn, Ti, Zr and Ge and X comprises one or more of Al, B, In and Ga.

Composition for SCR catalysts

The present disclosures relate to a catalyst for removing a nitrogen oxide and a manufacturing method thereof, and the catalyst for removing the nitrogen oxide includes: a first catalyst that includes a zeolite support containing copper and having a first framework; and a second catalyst that is physically mixed with the first catalyst and includes a zeolite support containing copper and having a second framework different from the first framework.

Catalyst and manufacturing method thereof

Described are compositions and catalytic articles comprising both a copper-promoted 8-ring small pore molecular sieve and an iron-promoted 8-ring small pore molecular sieve. The catalytic articles are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.

Mixed metal 8-ring small pore molecular sieve catalyst compositions, catalytic articles, systems, and methods

Described is a selective catalytic reduction catalyst comprising an iron-promoted 8-ring small pore molecular sieve. Systems and methods for using these iron-promoted 8-ring small molecular sieves as catalysts in a variety of processes such as abating pollutants in exhaust gases and conversion processes are also described.

8-ring small pore molecular sieve as high temperature SCR catalyst

Described are compositions and catalytic articles comprising a copper-promoted 8-ring small pore molecular sieve and an iron-promoted 8-ring small pore molecular sieve. The catalytic articles are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.

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.

8-ring small pore molecular sieve with promoter to improve low temperature performance

Growing community of inventors

Kyunggi-do, South Korea

Eunseok Kim