期刊
FUEL PROCESSING TECHNOLOGY
卷 89, 期 1, 页码 90-102出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fuproc.2007.08.001
关键词
biomass conversion; gasification; fixed bed
Fixed bed biomass gasification is a promising technology to produce heat and power from a renewable energy source. A twin-fire fixed bed gasifier based CHP plant was realized in the year 2003 in Wr. Neustadt, Austria. Wood chips are used as fuel, which are dried and sieved before being gasified to a low calorific gas of about 5.8 MJ/Nm(dry)(3). Before the clean gas is fed into a gas engine a cyclone and a RME (rapemethylester)/H2O quench system followed by a wet electrostatic precipitator (ESP) is used for gas cleaning. The CHP plant has a fuel power of 2 MWth and an electric output of 550 kW(el). As scale up and optimization tool a hot test rig with a capacity of 125 kW(th), was built. Basic parameters like the type of wood chips, power and air distribution were varied to investigate the effect on gas composition, tar content in the producer gas and carbon content in the ash. Additionally a temperature profile over the height of the 125 kW hot test rig was measured. Furthermore, the results from the hot test rig are discussed and compared with the results from the 2 MWth demonstration plant. (c) 2007 Elsevier B.V. All rights reserved.
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