Apparatus and method for ozone reduction in electrostatographic

Details Apparatus and method for ozone reduction in electrostatographic Apparatus and method for ozone reduction in electrostatographic

1977-08-08

1979-03-06

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

423DIG16, 422143, 422144, 422178, 55 68, 55 74, 55302, 55390, 250324, 250325, 355 18, B01D 5334, G03B 2716, B01J 824

Patent

active

041431189

ABSTRACT:
Disclosed is an apparatus and method for controlling corona generated ozone emissions in electrostatographic copying equipment. This is achieved by directing ozone rich gases through a novel fluidized bed reactor located in an exhaust channel of an electrostatographic copier. The novel reactor is provided with means for continuously or periodically purging fine particles from the perforated wall of the catalyst containing chamber proximate to the exhaust end of the reactor; thereby, preventing such fine particles from becoming permanently entrained within such perforation and creating a substantial pressure drop between the interior of the catalyst containing chamber and the exterior of said chamber proximate to exhaust end of the reactor. The preferred ozone neutralization system contemplated for use in this invention is a multiple stage device wherein a number of reactors are connected to one another in series. Each reactor in series contains catalytically active granules capable of neutralization of noxious ingredients which may be present in the gases collected from the vicinity of the corona discharge electrode.

REFERENCES:
patent: 1422211 (1922-07-01), Lamb
patent: 2203188 (1940-06-01), Beer
patent: 2298607 (1942-10-01), Anderson
patent: 3151943 (1964-10-01), Fujimoto et al.
patent: 3675096 (1972-07-01), Keiss
patent: 3775008 (1973-11-01), Schaeffer
patent: 3862420 (1975-01-01), Banks et al.

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