Method of operating catalytic converter

Details Method of operating catalytic converter Method of operating catalytic converter

1990-09-14

1993-04-20

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422173, 422177, 60299, 60300, F01N 310, B01D 5336, H05B 310

Patent

active

052040666

ABSTRACT:
In a catalytic converter operating method according to the present invention, a heater is energized at a predetermined power level or above and thereby heated substantially concurrently with the operation of an engine. During the heating, an oxidizing gas is introduced into the catalytic converter. When the temperature of the heater exceeds a value at which a main catalyst of the catalytic converter or light-off catalyst carried on the heater functions, the power level is reduced by an output adjuster and supply of the oxidizing gas is suspended.

REFERENCES:
patent: 3662540 (1972-05-01), Murphey
patent: 3768982 (1973-10-01), Kitzner et al.
patent: 3770389 (1973-10-01), Kitzner et al.
patent: 3832443 (1974-08-01), Hass
patent: 3947545 (1976-03-01), Ishida et al.
patent: 3956614 (1976-05-01), Hervert
patent: 4976929 (1990-12-01), Cornelison et al.
patent: 5063029 (1991-11-01), Mizuno et al.
"Recent Developments in Electrically Heated Metal Monoliths," Whittenberger et al., No. 900503, pp. 61-70.

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