John M Adomaitis

US Patent:

20010038812, Nov 8, 2001

Filed:

Jun 13, 2001

Appl. No.:

09/880375

Inventors:

Bulent Yavuz - Plainfield NJ, US
Kenneth Voss - Somerville NJ, US
Michel Deeba - North Brunswick NJ, US
John Adomaitis - Old Bridge NJ, US
Robert Farrauto - Westfield NJ, US

International Classification:

B01J029/06
B01J023/10

US Classification:

423/213200, 502/060000, 502/064000, 502/066000, 502/074000

Abstract:

Oxidation catalyst compositions for treating diesel exhaust include ceria and, optionally, alumina, each having a surface area of at least about 10 m/g, and a zeolite, e.g., Beta zeolite. Optionally, platinum may be included in the catalytic material, preferably in amounts which are sufficient to promote some gas-phase oxidation of carbon monoxide (“CO”) and hydrocarbons (“HC”) but which are limited to preclude excessive oxidation of SOto SO. Alternatively, palladium in any desired amount may be included in the catalytic material. The zeolite is optionally doped, e.g., ion-exchanged, with one or more of hydrogen, a platinum group metal or other catalytic metals. The catalyst compositions may be used in a method to treat diesel engine exhaust by contacting the hot exhaust with the catalyst composition to promote the oxidation of gas-phase CO and HC and of the volatile organic fraction component of particulates in the exhaust.

US Patent:

20050201916, Sep 15, 2005

Filed:

Jan 26, 2005

Appl. No.:

11/043613

Inventors:

Bulent Yavuz - Plainfield NJ, US
Kenneth Voss - Somerville NJ, US
Michel Deeba - North Brunswick NJ, US
John Adomaitis - Old Bridge NJ, US
Robert Farrauto - Westfield NJ, US

International Classification:

B01J029/06

US Classification:

423239200, 502064000, 502065000, 502066000

Abstract:

Oxidation catalyst compositions for treating diesel exhaust include ceria and, optionally, alumina, each having a surface area of at least about 10 m/g, and a zeolite, e.g., Beta zeolite. Optionally, platinum may be included in the catalytic material, preferably in amounts which are sufficient to promote some gas-phase oxidation of carbon monoxide (“CO”) and hydrocarbons (“HC”) but which are limited to preclude excessive oxidation of SOto SO. Alternatively, palladium in any desired amount may be included in the catalytic material. The zeolite is optionally doped, e.g., ion-exchanged, with one or more of hydrogen, a platinum group metal or other catalytic metals. The catalyst compositions may be used in a method to treat diesel engine exhaust by contacting the hot exhaust with the catalyst composition to promote the oxidation of gas-phase CO and HC and of the volatile organic fraction component of particulates in the exhaust.

US Patent:

20070199302, Aug 30, 2007

Filed:

Apr 26, 2007

Appl. No.:

11/740595

Inventors:

Bulent Yavuz - Plainfield NJ, US
Kenneth Voss - Somerville NJ, US
Michel Deeba - North Brunswick NJ, US
John Adomaitis - Old Bridge NJ, US
Robert Farrauto - Westfield NJ, US

International Classification:

F01N 3/00

US Classification:

060274000

Abstract:

Oxidation catalyst compositions for treating diesel exhaust include ceria and, optionally, alumina, each having a surface area of at least about 10 m/g, and a zeolite, e.g., Beta zeolite. Optionally, platinum may be included in the catalytic material, preferably in amounts which are sufficient to promote some gas-phase oxidation of carbon monoxide (“CO”) and hydrocarbons (“HC”) but which are limited to preclude excessive oxidation of SOto SO. Alternatively, palladium in any desired amount may be included in the catalytic material. The zeolite is optionally doped, e.g., ion-exchanged, with one or more of hydrogen, a platinum group metal or other catalytic metals. The catalyst compositions may be used in a method to treat diesel engine exhaust by contacting the hot exhaust with the catalyst composition to promote the oxidation of gas-phase CO and HC and of the volatile organic fraction component of particulates in the exhaust.

US Patent:

62486845, Jun 19, 2001

Filed:

Jun 7, 1994

Appl. No.:

8/255289

Inventors:

Bulent O. Yavuz - Plainfield NJ
Kenneth E. Voss - Somerville NJ
Michel Deeba - North Brunswick NJ
John R. Adomaitis - Old Bridge NJ
Robert J. Farrauto - Westfield NJ

Assignee:

Englehard Corporation - Iselin NJ

International Classification:

B01J 2906

US Classification:

502 66

Abstract:

Oxidation catalyst compositions for treating diesel exhaust include ceria and, optionally, alumina, each having a surface area of at least about 10 m. sup. 2 /g, and a zeolite, e. g. , Beta zeolite. Optionally, platinum may be included in the catalytic material, preferably in amounts which are sufficient to promote some gas-phase oxidation of carbon monoxide ("CO") and hydrocarbons ("HC") but which are limited to preclude excessive oxidation of SO. sub. 2 to SO. sub. 3. Alternatively, palladium in any desired amount may be included in the catalytic material. The zeolite is optionally doped, e. g. , ion-exchanged, with one or more of hydrogen, a platinum group metal or other catalytic metals. The catalyst compositions may be used in a method to treat diesel engine exhaust by contacting the hot exhaust with the catalyst composition to promote the oxidation of gas-phase CO and HC and of the volatile organic fraction component of particulates in the exhaust.

US Patent:

62741071, Aug 14, 2001

Filed:

Jun 1, 1995

Appl. No.:

8/458052

Inventors:

Bulent O. Yavuz - Plainfield NJ
Kenneth E. Voss - Somerville NJ
Michel Deeba - North Brunswick NJ
John R. Adomaitis - Old Bridge NJ
Robert J. Farrauto - Westfield NJ

Assignee:

Engelhard Corporation - Iselin NJ

International Classification:

B01J 802

US Classification:

4232135

Abstract:

Oxidation catalyst compositions for treating diesel exhaust include ceria and, optionally, alumina, each having a surface area of at least about 10 m. sup. 2 /g, and a zeolite, e. g. , Beta zeolite. Optionally, platinum may be included in the catalytic material, preferably in amounts which are sufficient to promote some gas-phase oxidation of carbon monoxide ("CO") and hydrocarbons ("HC") but which are limited to preclude excessive oxidation of SO. sub. 2 to SO. sub. 3. Alternatively, palladium in any desired amount may be included in the catalytic material. The zeolite is optionally doped, e. g. , ion-exchanged, with one or more of hydrogen, a platinum group metal or other catalytic metals. The catalyst compositions may be used in a method to treat diesel engine exhaust by contacting the hot exhaust with the catalyst composition to promote the oxidation of gas-phase CO and HC and of the volatile organic fraction component of particulates in the exhaust.

US Patent:

20150352493, Dec 10, 2015

Filed:

May 27, 2015

Appl. No.:

14/722881

Inventors:

- Florham Park NJ, US
Ye Liu - Holmdel NJ, US
Pascaline Harrison Tran - Holmdel NJ, US
Xinsheng Liu - Edison NJ, US
Michelle Casper - Plainsboro NJ, US
Michael P. Galligan - Cranford NJ, US
John R. Adomaitis - Old Bridge NJ, US
Shau-Lin F. Chen - Shanghai, CN
Weiliang Feng - Shanghai, CN

International Classification:

B01D 53/94
B01J 23/889
B01J 23/46
B01J 23/10
B01J 37/08
B01J 23/42
B01J 23/44
B01J 35/04
B01J 37/02
B01J 35/00
B01J 21/04

Abstract:

Aspects of the invention pertain to catalytic articles and methods of making catalytic articles comprising a first catalytic coating comprising a platinum group metal, wherein the first catalytic coating is substantially free of Cu, Ni, Fe, Mn, V, Co, Ga, Mo, Mg, Cr and Zn; a second catalytic coating comprising a non-PGM metal, wherein the second catalytic coating is substantially free of any platinum group metal; and one or more substrates, wherein the first catalytic coating is separated from the second catalytic coating, optionally with a barrier layer.