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《Journal of Fuel Chemistry and Technology》 2010-01
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Influence of the extractives on mechanism of biomass pyrolysis

GUO Xiu-juan,WANG Shu-rong,WANG Kai-ge,LIU Qian,LUO Zhong-yang(State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,China)  
Inert solvent was selected to extract corresponding extractives from different kinds of biomass.Pyrolysis of the extractives was studied on thermogravimetric analyzer coupled with Fourier Transform Infrared spectroscopy(TG-FTIR).The influence of extractives on biomass pyrolysis was also discussed.The results show that extractives have distinct differences in composition and product distribution due to the different amount of guaiacyl and syringyl units in lignin component.Manchurian ash contains more methanol and methane caused by the decomposition of phenols at high temperature.Compared with raw biomass,extracted biomass has higher activation energy and begins to release main products earlier;the yield of water,CO2,CO and aldehydes increases,while acids and alkanes decrease.
【Fund】: 国家自然科学基金(50676085 90610035);; 国家高技术研究发展计划(863计划 2009AA05Z407);; 国际科技合作与交流专项(2009DFA61050)
【CateGory Index】: TK6
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