Heater and catalytic converter

Details Heater and catalytic converter Heater and catalytic converter

1993-11-16

1996-07-23

Bhat, N.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422177, 422180, 422199, 60277, 60300, F01N 310, B01D 5000, B01D 5334

Patent

active

055386989

ABSTRACT:
A heater is composed of (a) a honeycomb structure having a large number of passages, (b) an adsorbent composed mainly of zeolite or an adsorbent-catalyst composition comprising adsorbent and a catalyst component supported on the adsorbent, the adsorbent or adsorbent-catalyst composition being coated on the honeycomb structure, and (c) at least two electrodes fixed to the honeycomb structure for electrification of the honeycomb structure, wherein a gas is flowed through the passages in the honeycomb structure and is heated. A catalytic converter has at least one main monolith catalyst and the above heater provided upstream or downstream of the main monolith catalyst or between two main monolith catalysts. A catalytic converter for purification of automobile exhaust gas, has (a) at least one main monolith catalyst, (b) a honeycomb heater comprising a honeycomb structure having a large number of passages and at least two electrodes for electrification fixed to the honeycomb structure, and (c) an adsorbent composed mainly of zeolite. Each of the at least one main monolith catalyst (a), the honeycomb heater (b) and the adsorbent (c) being provided in the exhaust gas system of an automobile.

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