Intermittent cleaning of process exhaust air

摘要

Cleaning exhaust process air in a batchwise fashion uses the suction of a fan to draw the air through a particle filter, a cooler and a reheater. The condensate from the cooler, and any entrapped pollutants, are collected. Because of the intermittent nature of the process the fan is also operated at varying outputs. Also claimed is the apparatus required for the above process.