Large scale purification of contaminated air

Details Large scale purification of contaminated air Large scale purification of contaminated air

1995-05-10

1995-12-26

Walsh, Donald P.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

With means applying electromagnetic wave energy or...

422906, B01J 1908

Patent

active

054785324

ABSTRACT:
A weakly ionized plasma is generated by continuous high-power microwave win a dielectric cavity positioned in a slow waveguide. Contaminated air under atmospheric pressure is exposed to the plasma within the waveguide cavity for a limited saturation time controlled by inflow at a regulated flow rate. During such limited saturation time, the contaminated air is purified by sequential ionization and recombination under an electron temperature resulting in a microwave discharge plasma dominated by atomic oxygen at a relatively high saturation density level together with atomic nitrogen at a relatively low density level.

REFERENCES:
patent: 4076606 (1978-02-01), Suzuki et al.
patent: 4345983 (1982-08-01), Wan
patent: 5137701 (1992-08-01), Mundt

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