Fabric filters or electrostatic precipitators - which works better with a spray dryer

Installation of spray dryer absorbers with electrostatic precipitators at one plant and with baghouses at another, essentially identical, plant provides information for the comparison of these alternate emission control technologies. The paper gives descriptions of the plants (one in Massachusetts and the other in Connecticut), their emission control systems, and compliance testing. While both systems have demonstrated their effectiveness, a spray dryer/absorber-fabric filter system has several advantages over a spray dryer/absorber-electrostatic precipitator system. These include more efficient reagent utilization, the ability to dampen the effects of rapid increases in inlet gas concentrations, and reduced susceptibility to changing flue gas conditions.