1
Shau Lin F Chen: SOx tolerant NOx trap catalysts and methods of making and using the same. Engelhard Corporation, Richard A Negin, August 17, 2004: US06777370 (59 worldwide citation)

The present invention relates to a layered catalyst composite useful for reducing contaminants in exhaust gas streams, especially gaseous streams containing sulfur oxide contaminants. More specifically, the present invention is concerned with improved catalysts of the type generally referred to as “ ...


2
Shau Lin F Chen, Harold Rabinowitz, Jin Sakakibara, Tian Luo: Layered catalyst composite. BASF Catalysts, Karen M Whitney, Diehl Servilla, Melanie L Brown, June 23, 2009: US07550124 (57 worldwide citation)

A layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. In one or more embodiments, the catalyst comprises three layers in conjunction with a carrier: a first laye ...


3
Shau Lin F Chen, Harold Rabinowitz, Jin Sakakibara, Tian Luo: Layered catalyst composite. Basf Catalysts, Karen M Whitney, Diehl Servilla, Melanie L Brown, April 14, 2009: US07517510 (48 worldwide citation)

A layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. In one or more embodiments, the catalyst comprises three layers in conjunction with a carrier: a first laye ...


4
Shau Lin F Chen, Harold N Rabinowitz, Chong Kim: Catalytic material having improved conversion performance. Engelhard Corporation, Richard A Negin, August 29, 2000: US06110862 (45 worldwide citation)

A novel catalytic material is prepared by dispersing a catalytically active species, e.g., one or more platinum group metals, on a support phase that contains a high porosity, meso-pores high surface area (HPMPHSA) material. The HPMPHSA material has a porosity, measured in milliliters per gram of ma ...


5
Shau Lin F Chen, Harold Rabinowitz, Jin Sakakibara, Tian Luo, Michel Deeba: Layered catalyst composite. BASF Corporation, Karen M Whitney, Diehl Servilla, Melanie L Brown, July 20, 2010: US07758834 (44 worldwide citation)

A layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. In one or more embodiments, the catalyst comprises three layers in conjunction with a carrier: a first laye ...


6
Zhicheng Hu, Patrick L Burk, Shau Lin F Chen, Harold N Rabinowitz, Christopher M Minnella, Aaron N Israel: Exhaust articles for internal combustion engines. Engelhard Corporation, Richard A Negin, Melanie L Brown, Scott S Servilla, October 2, 2007: US07276212 (37 worldwide citation)

Provided is a base metal undercoat containing catalyst and an exhaust article containing the catalyst. The catalyst contains a base metal undercoat with an oxygen storage component, and at least one catalytic layer. Also provided are methods for preparing the catalyst and methods for monitoring the ...


7
Shau Lin F Chen: Layered SOX tolerant NOX trap catalysts and methods of making and using the same. Engelhard Corporation, Richard A Negin, August 2, 2005: US06923945 (28 worldwide citation)

The present invention relates to a layered catalyst composite useful for reducing contaminants in exhaust gas streams, especially gaseous streams containing sulfur oxide contaminants. More specifically, the present invention is concerned with improved catalysts of the type generally referred to as “ ...


8
Shau Lin F Chen, Knut Wassermann, Stephan Siemund, Tian Luo, Torsten Neubauer, Jin Sakakibara, Harold Rabinowitz: Multilayered catalyst compositions. BASF Corporation, Karen M Whitney, Diehl Servilla, Melanie L Brown, July 13, 2010: US07754171 (21 worldwide citation)

A multilayered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. Provided is a catalytic material of at least four layers in conjunction with a carrier, where each of ...


9
Shau Lin F Chen, Gary A Gramiccioni, Wiley Feng, Eric An, Scott Zhao: Catalyst materials. BASF Corporation, Melanie L Brown, October 1, 2013: US08545780 (13 worldwide citation)

A catalyst material including a catalyst carrier including a porous alumina support and a hindrance layer on the alumina support, the hindrance layer comprising one or more of a sulfate, carbonate, hydroxide, or oxide of barium, strontium, or calcium is described. The catalyst carrier further includ ...


10
Pascaline H Nguyen, James M Chen, Chung Zong Wan, Shau Lin F Chen, Zhicheng Hu: Catalytic compositions and methods for suppression of halogenation of organic compounds with oxidation products of halogenated organic compounds in gaseous emission streams. Engelhard Corporation, Stephen I Miller, May 29, 2001: US06239064 (12 worldwide citation)

Methods and chemical compositions for treating a gas stream comprising non-halogenated and halogenated organic compounds while suppressing halogenation of the non-halogenated organic compounds with the oxidation products of the halogenated organic compounds in the gas stream are disclosed. The gas s ...