Ammonia slip catalyst

JM Fedeyko, K Doura, EC Weigert, JP Cox… - US Patent …, 2017 - Google Patents
Provided is an ammonia slip catalyst article having Sup ported palladium in a top or
upstream layer for oxidation of carbon monoxide and/or hydrocarbons, an SCR catalyst …

Automotive catalyst composites having a two-metal layer

M Arnold, S Kotrel, A Siani, S Siemund… - US Patent …, 2016 - Google Patents
Provided are catalyst composites whose catalytic material is effective to substantially
simultaneously oxidize carbon monoxide and hydrocarbons and reduce nitrogen oxides …

Integrated LNT-TWC catalyst

WM Xue, A Siani, JK Hochmuth, M Kinne… - US Patent …, 2017 - Google Patents
ABSTRACT A layered catalyst composite for the treatment of exhaust gas emissions,
effective to provide lean NO, trap functionality and three-way conversion functionality is …

Exhaust gas purification catalyst

Y Aoki - US Patent 9,440,223, 2016 - Google Patents
An exhaust gas purification catalyst is provided with a Substrate and a catalyst coating layer
formed on the surface of the Substrate. The catalyst coating layer is formed into a layered …

Integrated lnt-twc catalyst

WM Xue, A Siani, JK Hochmuth, M Kinne… - US Patent …, 2018 - Google Patents
A layered catalyst composite for the treatment of exhaust gas emissions, effective to provide
lean NO x trap functionality and three-way conversion functionality is described. Layered …

Exhaust gas purification catalyst and exhaust gas purification method using said catalyst

M Ikeda, K Komata, S Minami, Y Ogino… - US Patent 9,433,927, 2016 - Google Patents
As a way to Suppress deterioration of catalytic performance in an exhaust gas purification
catalyst even after being exposed to an exhaust gas containing a phosphorus com pound …

Catalyst for reducing nitrogen oxides

R Hoyer, A Schuler, E Mueller, T Utschig… - US Patent …, 2017 - Google Patents
The present invention relates to a nitrogen oxide storage catalyst composed of at least two
catalytically active coat ings on a Support body, wherein a lower coating. A contains cerium …

Three-way catalyst and its use in exhaust systems

HL Chang, HY Chen - US Patent 9,656,209, 2017 - Google Patents
(57) ABSTRACT A three-way catalyst is disclosed. The three-way catalyst comprises a
palladium component comprising palladium and a ceria-Zirconia-alumina mixed or …

NOx trap

D Swallow, PR Phillips - US Patent 9,486,791, 2016 - Google Patents
(57) ABSTRACT A NO, trap, and its use in an exhaust system for internal combustion
engines, is disclosed. The NO, trap comprises a substrate and three layers on the substrate …

Catalyst materials for NO oxidation

JB Hoke, O Gerlach, A Sundermann - US Patent 9,138,725, 2015 - Google Patents
BOLD 53/56(2006.01) BOLD 53/94(2006.01)(57) ABSTRACT BOI. 8/02(2006.01) A catalyst
material for the oxidation of NO comprising a COIB 2L/00(2006.01) catalyst carrier including …