Method of enhancing the effectiveness of electrostatic precipita

Details Method of enhancing the effectiveness of electrostatic precipita Method of enhancing the effectiveness of electrostatic precipita

1979-06-14

1980-12-09

Nozick, Bernard

Gas separation

Means within gas stream for conducting concentrate to collector

55 11, 55139, B03C 300

Patent

active

042382033

ABSTRACT:
The effectiveness of electrostatic precipitators, and particularly existing electrostatic precipitator installations, is enhanced by introducing into the gas stream in advance of the precipitator a spark-inhibiting additive, and then increasing the voltage applied to the precipitator over that which otherwise could be applied. The spark-inhibiting additive is preferably an ammonium salt introduced into the gas stream at a relatively low temperature and preferably in combination with the introduction into the gas stream at a relatively higher temperature of known conditioning additives from the group consisting of sodium bisulphate, ammonium bisulphate, ammonium sulphate and mixtures thereof. An existing installation in which, typically, a single power source energizes a plurality of precipitator cells because of the limiting nature of the sparking characteristics then operative, through the use of this method can be converted to an installation having a marked increase in precipitator efficiency without any additional capital investment other than providing an increased number of power sources so that all or a substantial number of the precipitator cells are provided with individual power sources.

REFERENCES:
patent: 3960687 (1976-06-01), Bakke et al.
patent: 4042348 (1977-08-01), Bennett et al.
patent: 4043768 (1977-08-01), Bennett et al.
patent: 4097252 (1978-06-01), Kirchoff et al.
patent: 4113447 (1978-09-01), Bennett et al.

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