STUDY ON PREPARATION OF BIO-OIL BY MICROWAVE PYROLYSIS OF BIOMASS
A low temperature method was used to obtain bio-oil from fir sawdust by means of microwave pyrolysis. Fir sawdust was mixed with microwave absorption medium(ionic liquid) in pyrolysis process and super-critical CO2 extraction was used to separate the product. Effects of reaction temperature, ratios of the ionic liquid to fir, reaction time on the yield of bio-oil were investigated, and the results show that the optimal processing conditions are that ratio of ionic liquid to fir sawdust is 4:3, reaction temperature is 200℃, reaction time is 30 minutes. Yield of bio-oil can reach 21.22％. Bio-oil obtained was analyzed by GC-MS, FTIR and TG-DTA, the result reveals that product consists of aromatic hydrocarbons, such as phenols, esters and acids, TG-DTA shows that the product is a fuel with good combustibility.
sawdust microwave bio-oil supercriticai CO2
Xiao-ya GUO Zhen WANG Bo ZHOU Yong ZHENG Bao-hua ZhANG
Department of Chemical Engineering,Shanghai University,Shanghai 201800,China
国际会议
广州
英文
1290-1293
2008-12-03（万方平台首次上网日期，不代表论文的发表时间）