Gas separation: processes – Electric or electrostatic field – Including baffling – deflection – or restriction of gas flow
Patent
1996-04-05
1998-03-31
Chiesa, Richard L.
Gas separation: processes
Electric or electrostatic field
Including baffling, deflection, or restriction of gas flow
96 80, 96 97, 2041573, 204179, 42218604, 42218621, B03C 341
Patent
active
057333602
ABSTRACT:
A corona discharge reactor (10) and method for chemically activating various constituents of a gas stream by use of corona discharge is provided. The corona discharge reactor (10) includes within a conduit a discharge plate (30a,b) having a plurality of through openings (33) and a plurality of projecting corona discharge electrodes (31,31',35,35'), and an electrode plate (40a,b,c) having a plurality of through openings (43) displaced from and opposing the tips (32) of the corona discharge electrodes (31,31',35,35'). A pulsed energization scheme is employed to intermittently generate a uniformly distributed corona discharge cloud (1000) between the plurality of corona discharge electrode tips (32) and the electrode plate (40a,b,c) during passage of the gas stream through the conduit. In an alternate embodiment, a back corona discharge member (60a,b,c,d) formed of a high resistance material is overlaid across that face of the electrode plate (40a,b,c) opposing the tips (32) of the corona discharge electrodes (31,31',35,35'). As corona discharge is generated from the tips (32) of the corona discharge electrodes (31,31',35,35'), the intense electric field generated in the high resistance material of the back corona discharge member (60a,b,c) generates back corona discharge. As flue gas passes through the interstices of this high resistance material, further chemical activation of the gas stream constituents is effected by the resulting back corona discharge.
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Feldman Paul L.
Kumar Krishnaswamy S.
Chiesa Richard L.
Environmental Elements Corp.
Klein David I.
Lee Jun Y.
Rosenberg Morton J.
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