INVESTIGATIONS OF THE COMBINED REMOVAL OF DUST AND POLLUTION GAS FOR THE ENERGETIC USE OF BIOMASS

Gas cleaning at the thermal use of biomass is expensive because, due t o the small waste gas amounts, the conventional gas cleaning systems c onsisting of a dedusting step and following ab- or adsorption processe s are very costly. Therefore it is the aim of a co-operation project c arried out by the Institute for Air- and Refrigeration, Dresden, and t he Institute for Environmental Process Engineering, Essen, to develop and test a combined removal of dust and pollution gas. A three-stage s eparator is presented, which consist of a two-stage deduster with a ca talytic post-combustion-stage.