WO2025133095 - EXHAUST GAS TREATMENT SYSTEM

National phase entry is expected:
Publication Number WO/2025/133095
Publication Date 26.06.2025
International Application No. PCT/EP2024/087862
International Filing Date 20.12.2024
Title **
[English] EXHAUST GAS TREATMENT SYSTEM
[French] SYSTÈME DE TRAITEMENT DE GAZ D'ÉCHAPPEMENT
Applicants **
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Inventors
CASTAGNOLA, Mario Jaime
DERITA, Leo Domenic
DOURA, Kevin
HESS III, Howard Sherman
Priority Data
63/613,090   21.12.2023   US
24158675.9   20.02.2024   EP
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Quotation for National Phase entry

Country StagesTotal
China Filing, Examination, Granting2050
EPO Filing, Examination, Granting8126
Japan Filing, Examination, Granting2124
South Korea Filing, Examination, Granting2042
USA Filing, Examination, Granting5340
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Total: 19,682

The term for entry into the National Phase has expired. This quotation is for informational purposes only

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Abstract[English] The present invention provides an exhaust gas treatment system comprising an intake for receiving an exhaust gas from an internal combustion engine and a catalyst system, which catalyst system comprises: a substrate having an LNT zone extending from an inlet end and a TWC zone extending from an outlet end; or a first upstream substrate comprising an LNT zone and a second downstream substrate comprising a TWC zone. Also provided is a combustion and exhaust system and a method of its use; and a method for treating methane in an exhaust gas.[French] La présente invention concerne un système de traitement de gaz d'échappement comprenant une admission destinée à recevoir un gaz d'échappement provenant d'un moteur à combustion interne et un système catalyseur, lequel système catalyseur comprend : un substrat ayant une zone LNT s'étendant d'une extrémité d'entrée et une zone TWC s'étendant d'une extrémité de sortie ; ou un premier substrat amont comprenant une zone LNT et un second substrat aval comprenant une zone TWC. L'invention concerne également un système de combustion et d'échappement et son procédé d'utilisation ; et un procédé de traitement du méthane dans un gaz d'échappement.