Catalytic converter for purifying exhaust gas
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United States of America Patent
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-
Dec 12, 1995
Grant Date -
N/A
app pub date -
Sep 12, 1994
filing date -
Sep 16, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for efficiently purifying NOx in the exhaust gas or soluble organic substance in the exhaust gas from a diesel engine. A plurality of purification units are arranged in a housing, each of which is composed of a catalytic layer for reducing NOx and a cooling core for cooling the exhaust gas admitted through the catalytic layer. The multi-staged purification units are so constructed to admit the exhaust gas to flow therethrough. The catalytic layer in the form of a porous carrier such as a honeycomb structure carries catalytic components. Upon purifying soluble organic substance in the exhaust gas from a diesel engine, the catalytic components carried on the catalytic layer serve to efficiently purify such substance, as well as inhibiting the reaction to form sulfate.
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