Method of conditioning flue gas to electrostatic precipitator

Details Method of conditioning flue gas to electrostatic precipitator Method of conditioning flue gas to electrostatic precipitator

1976-04-05

1977-08-23

Nozick, Bernard

Gas separation

Means within gas stream for conducting concentrate to collector

55 11, 4232155, B03C 100

Patent

active

040437680

ABSTRACT:
The collection characteristics of particles entrained in a particle-laden gas for collection by an electrostatic precipitator are improved by injecting finely divided ammonium sulfate into a particle-laden gas stream formed by the burning of coal while the gas has a temperature of 590.degree.-900.degree. C. Sufficient ammonium sulfate is injected to provide 75-1,250 grams per metric ton of coal burned to form the gas. After injection, the stream is directed through a heat exchange means and finally into the precipitator to collect the particles therein.

REFERENCES:
patent: 1446778 (1923-02-01), Witte
patent: 3665676 (1972-05-01), McKewen
patent: 3822339 (1974-07-01), Mizuno et al.
Dalmon, et al., -- A Comparison of Chemical Additives as Aids to Electrostatic Precipitation of Fly Ash-In Atmospheric Environment, vol. 6, pp. 721-734, Pergamon Press.

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