Exhaust gas treatment apparatus, engine system, and exhaust gas treatment method

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United States of America Patent

PATENT NO 12123335
APP PUB NO 20240229695A1
SERIAL NO

18560246

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An exhaust gas treatment apparatus includes a treatment cabinet and a catalyst part. To the treatment cabinet, introduced is exhaust gas of an engine which uses gas containing methane as a fuel. The catalyst part is accommodated in the treatment cabinet and oxidizes unburned methane contained in the exhaust gas. When a temperature of the catalyst part is lower than a predetermined normal operating temperature, the catalyst part oxidizes carbon monoxide contained in the exhaust gas and uses oxidation reaction heat of carbon monoxide, to thereby raise the temperature of the catalyst part up to the normal operating temperature or higher. Even when the temperature of the exhaust gas supplied to the catalyst part is lower than the normal operating temperature, it is thereby possible to quickly raise the temperature of the catalyst part up to the normal operating temperature por higher.

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Patent Owner(s)

Patent OwnerAddress
HITACHI ZOSEN CORPORATIONOSAKA-SHI OSAKA 559-8559

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujibayashi, Takahiro Osaka, JP 1 0
Hikazudani, Susumu Osaka, JP 39 154
Shono, Emi Osaka, JP 15 4

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