John J Mooney

US Patent:

6921738, Jul 26, 2005

Filed:

Oct 20, 2003

Appl. No.:

10/689164

Inventors:

H. Shinn Hwang - Livingston NJ, US
Joseph C. Dettling - Howell NJ, US
Michael P. Galligan - Clark NJ, US
Ronald J. Brown - Edison NJ, US
John J. Mooney - Wyckoff NJ, US

Assignee:

Engelhard Corporation - Iselin NJ

International Classification:

B01J021/08
B32B015/04

US Classification:

502240, 50252712, 50252713, 50252715, 428457

Abstract:

The present invention is directed to a catalyzed metallic substrate, such as a metal plate. There is a catalyst layer supported on the substrate surface. The article is useful as part of exhaust systems which can be used with small engines for applications such as motorcycles, lawn mowers, chain saws, weed trimmers and the like. The present invention includes methods to prepare the catalyzed metal substrate and methods of use of the catalyzed substrate.

US Patent:

20020132730, Sep 19, 2002

Filed:

Jul 26, 2001

Appl. No.:

09/917847

Inventors:

H. Hwang - Livingston NJ, US
Joseph Dettling - Howell NJ, US
Michael Galligan - Clark NJ, US
Ronald Brown - Edison NJ, US
John Mooney - Wyckoff NJ, US

Assignee:

Engelhard Corporation - Iselin NJ

International Classification:

B01J027/192

US Classification:

502/212000

Abstract:

The present invention is directed to a catalyzed metallic substrate, such as a metal plate. There is a catalyst layer supported on the substrate surface. The article is useful as part of exhaust systems which can be used with small engines for applications such as motorcycles, lawn mowers, chain saws, weed trimmers and the like. The present invention includes methods to prepare the catalyzed metal substrate and methods of use of the catalyzed substrate.

US Patent:

42060877, Jun 3, 1980

Filed:

Jan 6, 1977

Appl. No.:

5/757174

Inventors:

Carl D. Keith - Summit NJ
John J. Mooney - Wyckoff NJ
Robert E. Kenson - Guilford CT
Daniel L. Bair - Roselle Park NJ

Assignee:

Engelhard Minerals & Chemicals Corporation - Iselin NJ

International Classification:

B01J 2104
B01J 2310
B01J 2340
B01J 2374

US Classification:

252462

Abstract:

Macrosized catalysts suitable for promoting chemical reactions, especially to reduce pollutants in waste gas streams such as automobile exhaust, are described. The catalysts have one or more metal components, especially a platinum group metal component, as a catalytic promoter combined with a high surface area, refractory oxide support. Alumina is added to the macrosize catalyst to provide protection against poisoning by extraneous materials such as lead, zinc, other metals, sulfur or phosphorus with which the catalysts may come in contact during use. These catalysts may have a relatively catalytically-inactive carrier, especially a monolithic carrier which may be of the honeycomb type.

US Patent:

45527334, Nov 12, 1985

Filed:

Dec 18, 1984

Appl. No.:

6/682978

Inventors:

Charles E. Thompson - Warren NJ
John J. Mooney - Wyckoff NJ
Carl D. Keith - Summit NJ
William A. Mannion - San Francisco CA

Assignee:

Engelhard Corporation - Iselin NJ

International Classification:

B01D 1534
B01D 5300
B01J 802

US Classification:

4232135

Abstract:

This invention provides polyfunctional catalysts comprising a composite of platinum and one or more of rhodium, ruthenium and iridium, a substantially larger quantity of one or more base metal oxides in which the metal is selected from the group consisting of metals having an atomic number from 25 to 28 and rhenium, and an alumina support, which composite is made and then deposited on a suitable carrier. In a preferred embodiment, the catalysts contain 1-20 weight percent of said base metal oxide, typically nickel oxide; 0. 05-0. 5 weight percent platinum; and 0. 002-0. 3 weight percent rhodium, and an alumina support deposited on a monolith or other carrier. The improved catalysts are especially applicable for purifying exhaust gases from combustion processes, and in particular those from internal combustion engines. These polyfunctional catalysts have in a single formulation, the ability to accomplish four objectives--to oxidize carbon monoxide and unburned hydrocarbons while reducing nitrogen oxides, thereby converting those contaminants found in the exhaust of internal combustion engines into carbon dioxide, water and elemental nitrogen, but without producing significant amounts of hydrogen sulfide, sulfur trioxide or sulfuric acid. Such chemical conversions take place over the catalyst when the ratio of air to fuel supplied to the catalyst is controlled to nearly stoichiometric conditions, thereby maintaining the exhaust feed gases within a narrow compositional range, sometimes called a "window", in which the catalyst can substantially convert the contaminants.

US Patent:

42023017, May 13, 1980

Filed:

Aug 31, 1977

Appl. No.:

5/829555

Inventors:

Jack Early - Perth Amboy NJ
John J. Mooney - Wyckoff NJ
Carl D. Keith - Summit NJ

Assignee:

Engelhard Minerals & Chemicals Corporation - Iselin NJ

International Classification:

F02D 300

US Classification:

123119EC

Abstract:

An air-to-fuel ratio control mechanism in an internal combustion engine operates in partial response to the output of a control circuit, which circuit in turn is responsive to the output of an oxygen sensor mounted in the exhaust of the engine. The control circuit biases the control mechanism toward a predetermined desired air-to-fuel ratio, normally at or near stoichiometric. When the sensor output deviates above a first predetermined value or below a second predetermined value for longer than a predetermined time period, a comparator circuit provides a disabling signal which disconnects the control circuit from the air-to-fuel ratio control mechanism. At the same time, the disabling signal connects a predetermined signal to the air-to-fuel ratio control mechanism. This predetermined signal simulates a nominal control circuit output to maintain the air-to-fuel ratio close to stoichiometric or some other preferred setting such as a air/fuel ratio which is lean. An indicator is turned on by the disabling signal to alert the operator to possible malfunction.

US Patent:

41894049, Feb 19, 1980

Filed:

Jan 6, 1977

Appl. No.:

5/757145

Inventors:

Carl D. Keith - Summit NJ
John J. Mooney - Wyckoff NJ
Robert E. Kenson - Guilford CT
Daniel L. Bair - Roselle Park NJ

Assignee:

Engelhard Minerals & Chemicals Corporation - Iselin NJ

International Classification:

B01J 2104
B01J 2310
B01J 2340
B01J 2374

US Classification:

252462

Abstract:

Macrosized catalysts suitable for promoting chemical reactions, especially to reduce pollutants in waste gas streams such as automobile exhaust, are described. The catalysts have one or more metal components, especially a platinum group metal component, as a catalytic promoter combined with a high surface area, refractory oxide support on a relatively catalytically-inactive carrier, especially a monolithic carrier which may be of the honeycomb type. An aqueous solution of an alumina precursor is added to the macrosize catalyst to provide protection against poisoning by extraneous materials such as lead, zinc, other metals, sulfur or phosphorus with which the catalysts may come in contact during use.

US Patent:

41573161, Jun 5, 1979

Filed:

Sep 16, 1977

Appl. No.:

5/833922

Inventors:

Charles E. Thompson - Warren NJ
John J. Mooney - Wyckoff NJ
Carl D. Keith - Summit NJ
William A. Mannion - San Francisco CA

Assignee:

Engelhard Minerals & Chemicals Corporation - Iselin NJ

International Classification:

B01J 2104
B01J 2310
B01J 2364
B01J 2374

US Classification:

252462

Abstract:

This invention provides polyfunctional catalysts comprising a composite of platinum and one or more of rhodium, ruthenium and iridium, a substantially larger quantity of one or more base metal oxides in which the metal is selected from the group consisting of metals having an atomic number from 25 to 28 and rhenium, and an alumina support, which composite is made and then deposited on a suitable carrier. In a preferred embodiment, the catalysts contain 1-20 weight percent of said base metal oxide, typically nickel oxide; 0. 05-0. 5 weight percent platinum; and 0. 002-0. 3 weight percent rhodium, and an alumina support deposited on a monolith or other carrier. The improved catalysts are especially applicable for purifying exhaust gases from combustion processes, and in particular those from internal combustion engines. These polyfunctional catalysts have in a single formulation, the ability to accomplish four objectives - to oxidize carbon monoxide and unburned hydrocarbons while reducing nitrogen oxides, thereby converting those contaminants found in the exhaust of internal combustion engines into carbon dioxide, water and elemental nitrogen, but without producing significant amounts of hydrogen sulfide, sulfur trioxide or sulfuric acid. Such chemical conversions take place over the catalyst when the ratio of air to fuel supplied to the catalyst is controlled to nearly stoichiometric conditions, thereby maintaining the exhaust feed gases within a narrow compositional range, sometimes called a "window," in which the catalyst can substantially convert the contaminants.