Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier
Patent
1987-07-22
1990-03-27
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Waste gas purifier
422177, 422180, 422184, 55146, 55150, 55DIG30, 60300, 60303, 219374, 219375, F01N 310
Patent
active
049118943
ABSTRACT:
The invention is a catalytic air cleaner made from a double spiral formed by winding together two strips of metal. The strips are coated with a combustion catalyst. One spiral passage leads into the core of the spiral and the other passage leads out of the core. An electric resistance heater supplies heat at the core of the spiral. The outflowing air transfers this heat to the inflowing air, through the walls of the spiral. Because of this heat exchange, the difference between the temperature of the air at the core and the air entering the spiral can be many times the difference between the temperature of the air entering and leaving the spiral. Contaminants in the air are burned on the catalytic surface with a minimum input of heat. The invention also includes a method of designing a spiral having optimum characteristics.
REFERENCES:
patent: 3768982 (1973-10-01), Kitzner et al.
patent: 3770389 (1973-10-01), Kitzner et al.
patent: 3979193 (1976-09-01), Sikich
patent: 4040253 (1977-08-01), Dhugues et al.
Churchill Stuart W.
Retallick William B.
Strenger Mark R.
Eilberg William H.
Kummert Lynn M.
Retallick William B.
Richman Barry S.
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