Integrated injection and bag filter house system for SO.sub.x -N

Details Integrated injection and bag filter house system for SO.sub.x -N Integrated injection and bag filter house system for SO.sub.x -N

1986-11-19

1988-12-27

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423244, B01J 800, C01B 2100, C01B 1700

Patent

active

047939818

ABSTRACT:
A process of controlling emission of SO.sub.x, NO.sub.x and particulates from a coal-fired boiler system is disclosed. A reagent/catalyst in powdered form is added into the combustion flue gas stream intermediate the boiler and economizer at a temperature below the melting point of the powder. The reagent/catalyst and ammonia are reacted with the SO.sub.x and NO.sub.x while the flue gas passes through the economizer. Further reaction is achieved as the gas is passed through the filter cake which forms on the filterhouse bags.

REFERENCES:
patent: 931515 (1909-08-01), Sprague
patent: 3880618 (1975-04-01), McCrea et al.
patent: 4134729 (1979-01-01), Libutti et al.
patent: 4164546 (1979-08-01), Welty
patent: 4434147 (1984-02-01), Dimpfl et al.

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