Catalytic purifier unit

Details Catalytic purifier unit Catalytic purifier unit

1976-01-21

1978-10-03

Wolk, Morris O.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

60298, 165 7, 422180, F01N 315

Patent

active

041181980

ABSTRACT:
Purifier unit comprising a porous body coated with a substance having catalytic action to bring about purification of a medium, primarily a gas passing through the unit. A main field of use is the purification of hot exhaust gases from internal combustion engines. To render the porous purifier unit insensitive to the high temperature of the engine exhaust gases and the great variations of temperature particularly in winter time when starting a motor vehicle, and at the same time resistant to high mechanical stress and shock arising mainly from jolts and vibrations of a motor vehicle in motion, the porous body is comprised of a plurality of thin, at least partly corrugated, layers forming between themselves fine passageways extending from end to end for the medium to be purified and coated with the catalyst. The layers consist of a skeleton obtained from asbestos paper by precipitation of certain inorganic substances and subsequent heating to the fusing or slagging temperature for said substances.

REFERENCES:
patent: 3525384 (1970-08-01), Horton
patent: 3817714 (1974-06-01), Wiley
patent: 3910042 (1975-10-01), Yuge et al.
patent: 3943994 (1976-03-01), Cleveland
patent: 3957445 (1976-05-01), Foster
patent: 3967929 (1976-07-01), Tamazawa et al.
patent: 3978914 (1976-09-01), Phillips

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