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麦草半纤维素的快速热裂解实验研究
引用本文:彭云云,武书彬. 麦草半纤维素的快速热裂解实验研究[J]. 燃料化学学报, 2011, 39(1): 21-25
作者姓名:彭云云  武书彬
作者单位:1.State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou  510640, China;2.Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences, Guangzhou 510640, China
基金项目:国家重点基础研究发展规划(973计划,2007CB210201); 国家高技术研究发展计划(863计划,2007AA05Z456); 中国科学院可再生能源与天然气水合物重点实验室开放基金(0807K1)
摘    要:采用管式炉反应器在550℃~850℃进行了半纤维素的高温快速热裂解实验,以了解其热裂解产物分布及热解规律。结果表明,半纤维素热解三相产物中,气体产物产率最大且随着温度的升高而增加,其主要成分为H2、CO、CO2、CH4 以及小分子烃类。液相产物中主要是酸类、醇类、呋喃、环戊烯酮类化合物,以及苯酚等芳香化合物,其产率随着温度的升高无明显变化。而焦炭产率则随着温度的升高而降低,且其中残留有大量的有机化合物如醇类、酮类及脱水糖等。

关 键 词:  font-size: 9pt,line-height: 150%"  >麦草,半纤维素,管式炉热解,GC-MS,
收稿时间:2010-04-17
修稿时间:2010-08-03

Fast pyrolysis of hemicellulose in wheat straw
PENG Yun-yun,WU Shu-bin. Fast pyrolysis of hemicellulose in wheat straw[J]. Journal of Fuel Chemistry and Technology, 2011, 39(1): 21-25
Authors:PENG Yun-yun  WU Shu-bin
Affiliation:PENG Yun-yun1,WU Shu-bin1,2(1.State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou 510640,China,2.Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,China)
Abstract:The fast pyrolysis of hemicellulose in wheat straw was conducted in a tubular furnace at 550℃~850℃ to examine the products distribution and its mechanism. The result show that the gas yield is the highest compared with tar and char, and increases with the increasing of temperature. The gas is mainly consisted H2, CO, CO2, CH4 and hydrocarbon. The liquid products included acids, alcohols, furan, cyclopentenes and other aromatic compounds, and its relative yield changes slightly. The relative yield of char has contrary trend to that of gas. The isopropanol-extracted components remaining in the char are alcohols and other compounds with larger molecular weight.
Keywords:wheat straw  hemicellulose  tubular furnace pyrolysis  GC-MS  
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