The Influence of Wood Pellet Feedstock Water Content on Tar Component in Biomass System Using Downdraft Gasifier

摘要

Biomass gasification is a promising technology on the improvement of a worldwide green energy system. Biomass gasification is a thermal procedure where solid fuel changed over into a valuable gas using several gasifying agents, for example, air and steam. Tar is inevitable byproduct during biomass gasification process and needs to be reduced because it will disrupt the performance of other systems. This research had done on utilizing the dryer to change the moisture content of wood pellet to an arbitrary value. This experiment inspects the impact of the water substance on woody biomass in order to know the gasification efficiency. The tar sampling with various humidity pellet feedstock will be analyzed applying Gas Chromatography-Mass Spectrometry. It was found that generally, many compounds such as acetic acid, propanoic acid, phenol, benzene, toluene, xylene and naphthalene contained in tar composition. This research indicated the rising value of moisture content had influenced effects of the gasification effnciency.