Integrated injection and bag filter house system for SO.sub.x -NO.sub.x -particulate control with reagent/catalyst regeneration
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United States of America Patent
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Dec 27, 1988
Grant Date -
N/A
app pub date -
Nov 19, 1986
filing date -
Nov 19, 1986
priority date (Note) -
Expired
status (Latency Note)
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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.
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