Abstract: The production of biomass tar caused clogging, pollution and corrosion in the gas pipeline and gas cooker, which restricted the sustainable development of biomass energy industry. The composition of biomass tar distillate produced during biomass gasification process in straw gasifier designed by Agricultural Machinery Institute was analyzed by GC/MS method for four temerature ranges of 110~160℃, 160~160℃, 200~210℃ and 210~220℃. The results showed that there were 16 kinds of qualitative compounds, which were methylbenzene and 14 kinds of phenolic derivatives, and one kind of fatty acid ester. This study provided reference for tar processing method.

Key words: biomass tar, distillation, GC/MS analysis