Harold N Rabinowitz, 78West Paterson, NJ

6764665, Jul 20, 2004

Oct 26, 2001

10/003663

Michel Deeba - East Brunswick NJ
John J. Steger - Pittstown NJ
Harold N. Rabinowitz - Upper Montclair NJ
John S. Foong - Piscataway NJ

Engelhard Corporation - Iselin NJ

B01D 5356

4232391, 4232135, 502302, 502303, 502304, 502326, 502334, 502339

The present invention relates to a layered catalyst composite of the type generally referred to as a three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides. The structure of the layered catalyst composite of the present invention is designed wherein there are three layers in conjunction with a carrier: a first layer deposited on the carrier and comprising a high surface area refractory metal oxide; a second layer deposited on the first layer and comprising palladium and/or platinum deposited on a high surface area refractory metal oxide, and having substantially no oxygen storage components; and a third layer deposited on the second layer and comprising platinum and/or rhodium as well as an oxygen storage component, deposited on a high surface area refractory metal oxide.

7022644, Apr 4, 2006

Feb 20, 2002

10/079450

John S. Foong - Piscataway NJ, US
Harold N. Rabinowitz - Upper Montclair NJ, US

Engelhard Corporation - Iselin NJ

B01J 23/02

502303, 502325, 502328, 502302, 502327, 502339, 502340, 502349, 502355

Hydrogen sulfide formation is suppressed by a three-way conversion catalyst having an underlayer and a topcoat overlying the under layer. The under layer is prepared by dispersing a Group IIa metal oxide such as an oxide of magnesium, calcium, barium or strontium on a carrier such as a refractory metal oxide monolith. A topcoat overlying the undercoat is comprised of a three-way conversion catalyst material such as a platinum-group metal catalytic component, e. g. , platinum, palladium, rhodium or mixtures thereof.

7189376, Mar 13, 2007

Feb 13, 2003

10/366096

Sanath V. Kumar - North Brunswick NJ, US
Harold N. Rabinowitz - Upper Montclair NJ, US

Engelhard Corporation - Iselin NJ

B01D 50/00

422177, 422171, 422180

Provided are coated, multi-zoned catalyst substrates that trap and combust hydrocarbon and nitrogen oxides pollutants in a single monolith substrate. In some embodiments, the multi-zoned catalysts contain both radial and axial zones. The zones can be formed by deposition of segregated coating compositions (or washcoats) containing platinum group metals and pollutant adsorbent materials to form layers along the length and radius of the honeycomb substrate. The invention also relates to exhaust gas treating systems that incorporate the multi-zoned catalysts.

7276212, Oct 2, 2007

Oct 1, 2001

09/968192

Zhicheng Hu - Edison NJ, US
Patrick L. Burk - Freehold NJ, US
Shau-Lin F. Chen - Piscataway NJ, US
Harold N. Rabinowitz - Upper Montclair NJ, US
Christopher M. Minnella - Middlesex NJ, US
Aaron N. Israel - Hoboken NJ, US

Engelhard Corporation - Iselin NJ

B01D 53/34
F01N 3/10

422177, 422168, 422169, 422170, 422171, 422172, 422173, 422174, 422175, 422176, 60299, 60274, 502304, 502326

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 oxygen storage capacity of an exhaust article containing the catalyst.

7517510, Apr 14, 2009

Jun 7, 2007

11/759695

Shau-Lin F. Chen - Piscataway NJ, US
Harold Rabinowitz - Montclair NJ, US
Jin Sakakibara - Edison NJ, US
Tian Luo - Piscataway NJ, US

Basf Catalysts LLC - Florham Park NJ

B01D 53/56
B01D 53/62
B01D 53/72
B01D 53/86
B01D 53/94
B01J 23/44
B01J 23/46
B01J 35/00

4232132, 4232135, 4232391, 4232453, 423247, 422168, 422177, 422180, 422181, 502325, 502302, 502303, 502349, 502340, 50252712, 60274, 60282, 60299, 60302

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 layer deposited on the carrier and comprising palladium deposited on a refractory metal oxide and an oxygen storage component; a second layer deposited on the first layer and comprising rhodium deposited on a refractory metal oxide and an oxygen storage component; and a third layer deposited on the second layer and comprising palladium deposited on a refractory metal oxide.

7524465, Apr 28, 2009

Jul 7, 2006

11/482651

Sanath V. Kumar - North Brunswick NJ, US
Harold N. Rabinowitz - Upper Montclair NJ, US
John J. Steger - Pittstown NJ, US

BASF Catalysts LLC - Florham Park NJ

B01D 50/00

422180

Provided is an exhaust article (catalyst) coated on a single substrate, such as a monolithic honeycomb having a plurality of channels along the axial length of the catalyst. Different washcoat compositions are deposited along the length the channel walls of the substrate beginning from either the inlet or outlet axial end of the substrate to form inlet and outlet catalyst layers, respectively. In the coating process, the channel walls are coated with catalyst washcoat compositions to lengths that are less than the substrates' axial length. The architecture of the resulting catalyst layers defines a plurality of zones along the length of the substrate. The properties of each zone of the catalyst can be optimized to address specific catalyst functions by manipulation of both the coating lengths and the catalyst washcoat compositions.

7550124, Jun 23, 2009

Aug 17, 2007

11/840715

Shau-Lin F. Chen - Piscataway NJ, US
Harold Rabinowitz - Montclair NJ, US
Jin Sakakibara - Edison NJ, US
Tian Luo - Piscataway NJ, US

BASF Catalysts LLC - Florham Park NJ

B01D 53/56
B01D 53/62
B01D 53/72
B01D 53/94
B01J 23/44
B01J 23/46
B01J 35/00

4232132, 4232135, 4232391, 4232453, 423247, 422168, 422177, 422180, 422181, 502325, 502302, 502303, 502340, 502349, 50252712, 60274, 60282, 60299, 60302

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 layer deposited on the carrier and comprising palladium deposited on a refractory metal oxide and an oxygen storage component; a second layer deposited on the first layer and comprising rhodium deposited on a refractory metal oxide and an oxygen storage component; and a third layer deposited on the second layer and comprising palladium deposited on a refractory metal oxide.

7622096, Nov 24, 2009

Aug 9, 2007

11/836397

Michel Deeba - East Brunswick NJ, US
Knut Wassermann - Princeton NJ, US
Glenn Svoboda - Branchburg NJ, US
Harold Rabinowitz - Montclair NJ, US
Stephan Slemund - Pattensen, DE
Xinyi Wei - Princeton NJ, US

BASF Catalysts LLC - Florham Park NJ

B01D 53/56
B01D 53/62
B01D 53/72
B01D 53/86
B01D 53/94

4232132, 4232135, 4232137, 4232391, 4232453, 423247, 50252712, 50252713, 422168, 422169, 422170, 422171, 422177, 422180, 422181, 60274, 60282, 60299, 60302

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. Engine exhaust treatment system and methods of using the same are also provided. In one or more embodiments, the catalyst supported on a carrier has three layers, where at least two of the layers are zoned to have an oxygen storage component being present in an upstream zone in an amount that is less than the oxygen storage component present in the downstream zone.