Removal of contaminants from gases

Details Removal of contaminants from gases Removal of contaminants from gases

1980-10-27

1982-02-02

Nozick, Bernard

Gas separation

Means within gas stream for conducting concentrate to collector

55131, 55154, 55151, B03C 300

Patent

active

043137393

ABSTRACT:
The parent gas to be purified is passed end-to-end through a porous electrically conductive cylinder or its equivalent having a small wire electrode disposed along its longitudinal axis. A voltage is applied between the cylinder and wire sufficient to produce a corona discharge and ionize gas in the vicinity of the wire. Substantially only contaminants having an ionization potential less than that of the parent gas are or remain ionized and due to the electric field producing the corona discharge, are simultaneously caused to move toward the cylinder. Similarly, only electronegative gases become negatively charged in a negative corona and are likewise removed. A slightly lower pressure is maintained outside the cylinder effective to capture and remove the contaminant that has migrated to or adjacent the inner surface of the cylinder along with a small amount of the parent gas. Purified gas exits from the outlet of the cylinder.

REFERENCES:
patent: 1931436 (1933-10-01), Deutsch
patent: 3154682 (1964-10-01), Hartz et al.
patent: 3443570 (1969-05-01), King et al.
patent: 4066526 (1978-01-01), Yen

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