Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier
Patent
1980-03-13
1981-12-15
Nozick, Bernard
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Waste gas purifier
55 73, 55 94, 55122, 55135, 55222, 55150, 55228, 55 11, 422173, B01D 5000
Patent
active
043059090
ABSTRACT:
A system for processing hot flue gas to remove both gaseous contaminants such as sulfur dioxide and particulate matter such as flyash integrates spray scrubbing apparatus and wet electrostatic precipitation apparatus and provides for the advantageous extraction and utilization of heat present in the flue gas. The integrated system utilizes a spray scrubbing tower and a wet electrostatic precipitator which includes a portion constructed as a cross flow heat exchanger with flue gas saturated with water vapor moving vertically upwards inside tubes arranged in a staggered pattern and ambient air being pulled horizontally across the outside of those tubes to cool the tube walls and thereby remove heat from the flue gas and cause condensation of water vapor on the inside wall surfaces. The condensate washes the electrostatically collected flyash particles down from the inside tube walls. The heat that is extracted from the saturated flue gas may be utilized for flue gas reheat after the wet electrostatic precipitator or for preheating of combustion air to the steam generator boiler.
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Flue Gas Desulfurization-Joy Mfg. Co., Western Precipitation Div., pp. 1-4, dtd. 11/73.
Bakke Even
Willett Howard P.
Nozick Bernard
Peabody Process Systems, Inc.
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