Stack gas reheater system

Details Stack gas reheater system Stack gas reheater system

1979-06-29

1981-11-17

Nozick, Bernard

Gas separation

Means within gas stream for conducting concentrate to collector

55257HE, 55312, 55261, 261152, 261DIG77, 165134DP, B01D 4700

Patent

active

043009204

ABSTRACT:
In a method of treating flue gas which results from the burning of coal in a boiler wherein the flue gas is passed through a wet scrubber and proceeds in a saturated condition as a flue gas stream to an exhaust fan and then up a stack to the atmosphere, and wherein a reheat heat exchanger is employed to heat the saturated flue gas prior to its introduction to the exhaust fan to a sufficiently high temperature above its dew point the improvement in that method which comprises heating at least a portion of the flue gas stream subsequent to its passage through the wet scrubber and prior to its passage through the reheat heat exchanger to prevent any condensation from the flue gas stream in or on the reheat heat exchanger.

REFERENCES:
patent: 3818682 (1974-06-01), Farrow
patent: 3880622 (1975-04-01), Howell
patent: 4152123 (1979-05-01), Hegemann et al.

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