Method of removing SO.sub.x and NO.sub.x from effluent gas

Details Method of removing SO.sub.x and NO.sub.x from effluent gas Method of removing SO.sub.x and NO.sub.x from effluent gas

1987-11-13

1989-06-13

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423235, 423242, 423244, B01J 800, C01B 1700

Patent

active

048391484

ABSTRACT:
For the removal of SO.sub.x and NO.sub.x from effluent gas, the gas, before being passed through a Selective Catalytic Reduction catalyst bed for reduction of at least a part of the nitrogen oxides in the gas, is subjected to at least substantially complete desulfurization in a coke bed. The desulfurized and denoxed gas can also be passed through a coke bed in which the ammonia which has not reacted in the SCR-catalyst bed is removed from the gas.

REFERENCES:
patent: 2992895 (1961-07-01), Feustel et al.
patent: 3910766 (1975-10-01), Yamada
patent: 4427642 (1984-01-01), Arashi et al.
patent: 4469662 (1984-09-01), Hamada et al.
patent: 4500501 (1985-02-01), Hamada et al.
patent: 4629609 (1986-12-01), Fruhbuss
patent: 4732743 (1988-03-01), Schmidt et al.
patent: 4735927 (1988-04-01), Gerdes et al.

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