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《Chinese Journal of Catalysis》 2008-09
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Production of Light Aromatic Hydrocarbons from Biomass by Catalytic Pyrolysis

WANG Chang1,HAO Qinglan1,LU Dingqiang2,JIA Qingzhu1,LI Guiju1,XU Bo1(1 Department of Environmental Science and Engineering,Tianjin University of Science and Technology,Tianjin 300457,China;2 College of Life Science and Pharmacy,Nanjing University of Technology,Nanjing 210009,Jiangsu,China)  
Catalytic pyrolysis of three kinds of woody biomass was carried out using a dual-particle powder fluidized-bed reactor to produce light aromatic hydrocarbons such as benzene,toluene,xylene,and naphthalene(BTXN).The results showed that pyrolysis temperature of biomass was very low,and about 92% of the volatile matter in the biomass can be released at 673 K,indicating that the biomass was suitable for catalytic pyrolysis at low temperature.The tar in the volatile matter was the product of the primary decomposition,and it was then transformed to lower molecular hydrocarbon compounds at higher temperature during the secondary reaction.The biomass pyrolysis product distribution could be controlled by adjusting the secondary reaction parameters.The test results of the catalytic hydropyrolysis of the biomass over different catalysts showed that the pyrolysis product distribution depended much on the catalyst types and the pyrolysis temperature.BTXN were the intermediates of the secondary reaction during the pyrolysis or hydropyrolysis process.When biomass was hydropyrolyzed in the fluidized bed with the CoMo-S/Al2O3 catalyst,BTXN yield reached 6.3%(BTX: 5.5%;N: 0.8%) at 863 K.However,the highest CH4 yield of 99.5% was obtained when a NiMo/Al2O3 catalyst was used.Therefore,it is important to select a catalyst with proper hydrogenation activity to obtain the highest yield of BTXN.Different types of woody biomass with similar compositions results in similar product distributions.
【Fund】: 天津市科委应用基础研究计划(05YFJ MJC12600);; 中国博士后科学基金(20080430734).
【CateGory Index】: O643.36
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Chinese Journal Full-text Database 1 Hits
1 WANG Chang and JIA Qingzhu(Faculty of Material Science and Chemical Engineering, Tianjin University of Science & Technology,Tianjin 300222, China)$$$$ Nakagawa Nobuyoshi and Kato Kunio(Department of Biological and Chemical Engineering,Faculty of Engineering,Gunma University,Kiryu 376-8515, Japan);CONVERSION OF PLANT-BIOMASS TO BTX AND SYNTHETIC FUELS BY CATALYTIC PYROLYSIS[J];Journal of Chemical Industry and Engineering(China);2004-08
Chinese Journal Full-text Database 10 Hits
1 Xie Kechang, Liu Shengyu * (State Key Lab. of C 1 Chemistry and Technology, Shanxi Key Lab. of Coal Science and Technology, Taiyuan University of Technology, Taiyuan 030024);Application of Pyrolysis/Fourier Transform Infrared Spectroscopy to Study the Reaction of Pyrolysis[J];Chinese Journal of Analytical Chemistry;2003-04
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5 DU Lei(North China Institute of Water Conservancy and Hydroelectric Power,Zhengzhou 450011,China);Research on the Catalytic Experiments of Methanol Synthesis from Biomass Gas[J];Journal of North China Institute of Water Conservancy and Hydroelectric Power;2008-03
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9 LIU Kang,JIA Qing-zhu,WANG Chang(Department of Material Science and Chemical Engineering,Tianjin University of Science and Technology,Tianjin 300457,China);Development on Biomass Pyrolysis Technology[J];Chemical Industry and Engineering;2008-05
10 MIAO Xia,LUO Jia,LI Guiying,HU Chang-wei(Key Laboratory of Green Chemistry and Technology(Sichuan University), Ministry of Education,College of Chemistry,Sichuan University,Chengdu,610064,China);Catalytic pyrolysis of pubescens under H_2 flow[J];Chemical Research and Application;2007-05
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