Cyclones and the electrostatic precipitator (ESP). The separation efficiencies of cyclone and ESP are assumed to be 99.5% and 99.9% respectively,,. The particle size distributions of sand and.Ash have a significant influence on sizing the cyclone and the ESP. The average particle size of sand is 380 LM in the. Range from 100 to 600 LM which was, measured by experiment. Almost all sand particles are separated in, the cyclone whereas. Most of ash is removed at the ESP. It is not trivial to determine the particle size distribution of ash after the pyrolysis. Reactor. In our study the ash, particles having an average size of 38 LM range from 20 to 60 LM. A marginal amount of ash. Still existing in the gas is also present in the condensate liquid (crude biooil), resulting in a dark color. Char ash collected. From the gas - solid separation can be sold as a byproduct.But in, this study all char is sent to the combustor to supply. Heat for the biomass pyrolysis. For excess heat the price, is set to be 5 $/ 106 kJ (see Table 7).
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