Patent application number | Description | Published |
20110286900 | PGM-Zoned Catalyst for Selective Oxidation of Ammonia in Diesel Systems - Platinum group metal zoned ammonia oxidation catalytic articles and methods of making are described. Also described are emissions treatment systems and methods of treating an exhaust stream containing ammonia using a platinum group metal zoned ammonia oxidation catalytic article. | 11-24-2011 |
20140112852 | 8-Ring Small Pore Molecular Sieve with Promoter to Improve Low Temperature Performance - 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. | 04-24-2014 |
20140112853 | Mixed Metal 8-Ring Small Pore Molecular Sieve Catalyst Compositions, Catalytic Articles, Systems, and Methods - 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. | 04-24-2014 |
20140112854 | 8-Ring Small Pore Molecular Sieve as High Temperature SCR Catalyst - 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. | 04-24-2014 |
20140271452 | Stabilized Metal-Exchanged SAPO Material - Described are catalyst materials and catalytic articles comprising a metal exchanged SAPO material comprising a plurality of substitutional sites consisting essentially of Si(4Al) sites and substantially free of Si(0Al) sites. The materials and catalytic articles are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant. | 09-18-2014 |
20140301923 | Selective Catalytic Reduction Catalyst System - Described are SCR catalyst systems comprising a first SCR catalyst composition and a second SCR catalyst composition arranged in the system, the first SCR catalyst composition promoting higher N | 10-09-2014 |
20150071851 | 8-Ring Small Pore Molecular Sieve As High Temperature SCR Catalyst - 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. | 03-12-2015 |
20150086456 | Mixed Metal 8-Ring Small Pore Molecular Sieve Catalyst Compositions, Catalytic Articles, Systems, and Methods - 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. | 03-26-2015 |