Catalytic exhaust gas torch

Details Catalytic exhaust gas torch Catalytic exhaust gas torch

1980-10-27

1982-03-30

Cuchlinski, Jr., William A.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422183, 55DIG30, F01N 310

Patent

active

043223877

ABSTRACT:
Filter apparatus for filtering combustible particles from an exhaust gas stream, and for periodically rejuvenating the filter bed and catalyst section thereof, by incinerating retained particles. At least a portion of an engine's exhaust gas stream is initially preheated in the catalyst section to raise said section to a predetermined "lightoff" temperature. A supplementary fuel is then introduced to the heated exhaust gas stream prior to the latter entering the catalyst section, thereby causing the fuel/gas mixture to react. Subsequent to initiation of this oxidation reaction, further preheating energy input to increase the exhaust gas to "lightoff" temperature, can be discontinued without affecting the combustible particle incineration rate.

REFERENCES:
patent: 3073684 (1963-01-01), Williams, Sr.
patent: 3744249 (1973-07-01), August
patent: 3796207 (1974-03-01), Olson
patent: 3892536 (1975-07-01), Roeser et al.
patent: 3940253 (1976-02-01), Zetterstrom
patent: 4033123 (1977-07-01), Masaki et al.
patent: 4169128 (1979-09-01), Sinor et al.
patent: 4212657 (1980-07-01), Urbinati
patent: 4257225 (1981-03-01), Grone, Jr.

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