Patent ID: 6974494

Claim:
Apparatus for drying particulate material and controlling emission of pollutants in flue gas, comprising a dryer using a hot gas stream, a pollution abatement system, and means for passing the flue gas through said pollution abatement system, wherein the flue gas contains particulate pollutants, gaseous pollutants, and condensable liquid aerosols, and wherein the pollution abatement system includes an electrified filter bed unit, and a heater, the flue gas being passed from the dryer through the heater and the electrified filter bed unit in that order, wherein the heater raises the temperature of the flue gas passed therethrough to a level sufficient to render liquid aerosols gaseous and to prevent condensation of the aerosols in the electrified filter bed unit, and the electrified filter bed unit removes particulates from the flue gas passed therethrough, without removing gaseous pollutants.