Parallel path catalytic converter

Details Parallel path catalytic converter Parallel path catalytic converter

1991-09-16

1992-09-22

Kummert, Lynn M.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422180, 422190, 422193, 422199, 422222, 55146, 55150, 55DIG30, 60300, 392479, F01N 310

Patent

active

051495082

ABSTRACT:
There is provided an electrically heatable catalytic monolith composed of a bundle of layers of corrugated thin metal strips in contiguous relation in an electrically parallel circuit, the bundle being accordion folded and having electrical contacts at each end of the bundle and insulation between contiguous folds of the bundle. There is also provided a catalytic converter having a housing, a nonelectrically heatable catalytic monolith and an electrically heatable catalytic monolith as above described in tandem relation in the housing. The primary purpose of the devices hereof is to enable preheating of the catalyst to near optimum temperature for catalytic treatment of a gas, e.g. exhaust gas from an internal combustion engine, to overcome pollution at the time of start-up of the engine and until equilibrium temperature of the unit is achieved.

REFERENCES:
patent: 3768982 (1973-10-01), Kitzner et al.
patent: 3770389 (1973-10-01), Kitzner et al.
patent: 4456186 (1984-06-01), Ando
patent: 4711009 (1987-12-01), Cornelison et al.
patent: 4911894 (1990-03-01), Retallick et al.
patent: 4976929 (1990-12-01), Cornelison et al.

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