Apparatus for the desulfurization and detoxification of flue gas

Details Apparatus for the desulfurization and detoxification of flue gas Apparatus for the desulfurization and detoxification of flue gas

1986-02-07

1988-08-16

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

422145, 422147, 422173, 422178, F01N 310

Patent

active

047643455

ABSTRACT:
An apparatus for purifying exhaust flue gases includes a reaction vessel having a lower crude flue gas inlet and an upper purified flue gas outlet. A reaction chamber, disposed inbetween the inlet and outlet is fillable with solid bodies capable of carrying a desulfurizing agent. A screw conveyor passes through the reaction chamber and has a top inlet end for introducing the solid bodies into the reaction chamber. A bottom vessel outlet end is provided for discharging reacted desulfurizing agent from the vessel. A process for purifying exhaust gas includes passing a migrating layer of solid bodies carrying a desulfurizing agent countercurrently to a flow of exhaust gas in a cleaning vessel. A temperature controlled zone, below the dew point temperature of the exhaust gas, is formed within the layer of solid bodies, thereby creating a stable washing zone within the layer of solid bodies, wherein the desulfurizing agent is converted into a conversion product by interaction with the gas, thereby cleaning the gas.

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patent: 4617175 (1986-10-01), Tolpin et al.

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