Apparatus for regenerative flue gas heat exchanger

Details Apparatus for regenerative flue gas heat exchanger Apparatus for regenerative flue gas heat exchanger

1983-10-20

1985-04-09

Favors, Edward G.

Heat exchange

Regenerator

165 8, F28D 1700

Patent

active

045095833

ABSTRACT:
A flue gas scrubbing system for fossil fuel power plant boilers in which the flue gas traverses an air heater from the boiler and an electrostatic or another particulate removal unit before fully or partially passing through a heat exchanger which is used to reheat the clean gas produced by scrubbing all or part of the crude flue gas. To prevent water droplets in the clean gas from entering the heat exchanger, a portion of the crude gas or preferably a recirculated portion of the reheated clean gas is introduced into said clean gas before it enters the heat exchanger with or without further heating, e.g. in indirect heat exchange with a portion of the crude gas branched from a location upstream of the air heater.

REFERENCES:
patent: 3802489 (1974-04-01), Kirchhoff et al.
patent: 4047559 (1977-09-01), Asplund et al.
patent: 4114680 (1978-09-01), Kritzler et al.
patent: 4446911 (1984-05-01), Reidick et al.

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