Substrate monolith comprising SCR catalyst

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United States of America Patent

PATENT NO 9333461
APP PUB NO 20130149207A1
SERIAL NO

13711134

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Abstract

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A substrate monolith 6 having a length L and comprising a first zone 11 of substantially uniform length defined at one end by a first end of the substrate monolith, which first zone comprising a selective catalytic reduction (SCR) catalyst for reducing oxides of nitrogen with a nitrogenous reductant in exhaust gas emitted from an internal combustion engine and a second zone 8 of substantially uniform length less than L defined at one end by a second end of the substrate monolith, which second zone comprising (a) at least one particulate metal oxide or a mixture of any two or more thereof for trapping gas phase platinum group metal (PGM), which at least one particulate metal oxide does not act as a support for any other catalytic component; or (b) a component capable of trapping and/or alloying with gas phase PGM.

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Patent Owner(s)

Patent OwnerAddress
JOHNSON MATTHEY PUBLIC LIMITED COMPANYLONDON EC4A 4AB

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Castagnola, Mario Jaime Downingtown, US 2 31
Chiffey, Andrew Francis Ware, GB 72 860
Phillips, Paul Richard Royston, GB 121 1488
Rajaram, Raj Rao Slough, GB 75 983
Walker, Andrew Peter High Wycombe, GB 33 740

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