Cooling and cleaning system for biogas plant has two heat exchangers connected in series to cool hot gas and condense out tar before gas goes to cooled metallic fabric filter

摘要

The hot biogas (Brenngas) enters the filtering and cooling system at a temperature of 700-1200 degrees C. It is cooled to 250 degrees C in a first heat exchanger (Warmetauscher). It then passes through a second heat exchanger (Rohren-warmetauscher) in which the tar condenses and runs off into a container (Teer-sammelbehalter). The gas leaves the tar condensing heat exchanger at 100 degrees C and passes into a cooled woven or knitted metal cloth filter (gekuhlter Metallgestrickfilter). The gas leaves the filter at 45 degrees C, and condensate is run off into containers (Kondensatsammelbehalter).