Catalytic sulfur trioxide flue gas conditioning

Details Catalytic sulfur trioxide flue gas conditioning Catalytic sulfur trioxide flue gas conditioning

1994-12-05

1996-06-11

Kwon, John T.

Furnaces

With exhaust gas treatment means

110210, 110211, 110216, 110345, F23J 1500

Patent

active

055245579

ABSTRACT:
A method and apparatus for the selective control of the sulfur trioxide concentration in flue gases, to enhance the ash removal efficiency of electrostatic precipitators, which includes supporting a catalyst in the path of the flue gas, catalytically converting a portion of the sulfur dioxide contained within such flue gas to sulfur trioxide, by passing at portion of such flue gases over a catalyst which is positioned within the path; selectively varying the amount of sulfur trioxide produced by the catalytically converting, by selectively changing the quantity of flue gas flowing through such catalyst; and simultaneously maintaining the ratio of the pressure loss coefficient of the flue gas flowing through the other portion of such duct, in the vicinity of such catalyst, within a predetermined range.

REFERENCES:
patent: 4213403 (1980-07-01), Gomori
patent: 4599952 (1986-07-01), Meier
patent: 4898105 (1990-02-01), Rappolst et al.
patent: 4961908 (1990-10-01), Pennington et al.
patent: 4986196 (1991-01-01), Butch
patent: 5237939 (1993-08-01), Spokoyny et al.
patent: 5320052 (1994-06-01), Spokoyny et al.

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