Johnson Matthey Public Limited Company

Duncan John William Winterborn

Paul Joseph Andersen

Ralf Dotzel

Rainer Leppelt

Julian Peter Cox

Todd Howard Ballinger

Jörg Werner Münch

Hubert Schedel

Michael Leonard William Spencer

Dirk Aderhold

Alan George Haynes

Kwangmo Koo

Jeffery Scott Rieck

Hai-Ying Chen

David Bergeal

Hsiao-Lan Chang

A three way catalyst includes an extruded solid body having by weight: 10-100% of at least one binder/matrix component; 5-90% of a zeolitic molecular sieve, a non-zeolitic molecular sieve or a mixture of any two or more thereof; and 0-80% optionally stabilised ceria. The catalyst also includes at least one precious metal and optionally at least one non-precious metal, wherein: (i) the at least one precious metal is carried in one or more coating layer(s) on the body surface; (ii) at least one metal is present throughout the body and at least one precious metal is carried in one or more coating layer(s) on a body surface; or (iii) at least one metal is present throughout the body, is present in a higher concentration at a body surface, and at least one precious metal is carried in one or more coating layer(s) on the body surface.

Three way catalyst comprising extruded solid body

A three way catalyst includes an extruded solid body having: 10-95% by weight of at least one binder/matrix component; 5-90% by weight of a zeolitic molecular sieve; and 0-80% by weight optionally stabilized ceria. The catalyst further includes at least one precious metal and optionally at least one non-precious metal. The at least one precious metal is carried in a coating layer on a surface of the extruded solid body; at least one metal is present throughout the extruded solid body and at least one precious metal is also carried in a coating layer on a surface of the extruded solid body; or at least one metal is present throughout the extruded solid body, is present in a higher concentration at a surface of the extruded solid body and at least one precious metal is also carried in a coating layer on the surface of the extruded solid body.

An oxidation catalyst comprises an extruded solid body comprising: 10-95% by weight of at least one binder/matrix component; 5-90% by weight of a zeolitic molecular sieve, a non-zeolitic molecular sieve or a mixture of any two or more thereof; and 0-80% by weight optionally stabilized ceria, which catalyst comprising at least one precious metal and optionally at least one non-precious metal, wherein: (i) a majority of the at least one precious metal is located at a surface of the extruded solid body; (ii) the at least one precious metal is carried in one or more coating layer(s) on a surface; (iii) at least one metal is present throughout the extruded solid body and in a higher concentration at a surface; (iv) at least one metal is present throughout the extruded solid body and in a coating layer(s) on a surface; or (v) a combination of (ii) and (iii).

Oxidation catalyst

Apparatus for coating a support such as a monolithic catalyst support () comprises a dispenser () for dispensing a predetermined quantity of coating liquid, a containment () for the liquid and a source of vacuum () which can be actuated to draw the entire quantity of coating liquid into the support (). The apparatus and method are particularly useful for coating car catalysts without wastage and with increased design options.

Apparatus for coating a monolith support

Monolith coating apparatus and method therefor

Apparatus for coating a support such as a monolithic catalyst support ( ) comprises a dispenser ( ) for dispensing a predetermined quantity of coating liquid, a containment ( ) for the liquid and a source of vacuum ( ) which can be actuated to draw the entire quantity of coating liquid into the support ( ). The apparatus and method are particularly useful for coating car catalysts without wastage and with increased design options.

Growing community of inventors

Cambridge, United Kingdom

Duncan John William Winterborn