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当前位置: 首页 > 文章 > 温度对马尾松热解产物产率和特性的影响 浙江农林大学学报 2016,33 (1) 109-115
Position: Home > Articles > Pinus massoniana pyrolysis: influence of temperature on yields and product properties Journal of Zhejiang A&F University 2016,33 (1) 109-115

温度对马尾松热解产物产率和特性的影响

作  者：
马中青;张齐生
单  位：
浙江农林大学工程学院;南京林业大学材料科学与工程学院
关键词：
木材科学与技术;马尾松;慢速热解;固定床;可燃气;生物质炭;生物油
摘  要：
马尾松Pinus massoniana是中国重要的速生人工林树种。采用热化学转化法,可制取生物质燃气、生物质炭和生物油等高品质燃料。采用固定床热解反应器,开展了热解温度(400,500,600和700℃)对马尾松慢速热解过程产物产率和基本特性的影响研究。结果表明:随着反应温度的升高,气体产率逐渐增加,炭产率和生物油产率逐渐减少;在700℃时,可燃气的最高热值为12.11 MJ·N~(-1)·m~(-3),气体成分及其体积分数为二氧化碳CO_2(24.00%),一氧化碳CO(25.00%),甲烷CH4(15.50%),氢气H_2(25.50%)和烃类气体CnHm(2≤n≤4)(0.97%);炭的最高低位热值和比表面积分为31.8 MJ·kg~(-1)和536.13 m~2·g~(-1);生物油中乙酸(5.30%),1-羟基-2-丁酮(4.11%),乙酰甲醇(8.46%),苯酚(2.66%)和甲基苯酚(3.87%)的相对含量最高。
译  名：
Pinus massoniana pyrolysis: influence of temperature on yields and product properties
作  者：
MA Zhongqing;ZHANG Qisheng;School of Engineering,Zhejiang A & F University;Key Laboratory of Wood Science and Technology of Zhejiang Province,Zhejiang A & F University;College of Materials Science and Engineering,Nanjing Forestry University;
关键词：
wood science and technology;;Pinus massoniana;;slow pyrolysis;;fixed bed;;bio-gas;;bio-char;;bio-oil
摘  要：
Pinus ma ssoniana, a fast-growing wood species that is plentiful in China, could be converted into high-quality bio-fuel through thermal-chemical conversion technology. The objective of this study was to obtain useful data for effective design and operation of biomass pyrolysis technology fed by P. massoniana. In this study a fixed bed reactor was used to determine the influence of temperature(400, 500, 600, and 700 ℃) on yields and properties of slow pyrolysis products for P. massoniana. The components of bio-gas were analyzed by gas chromatograph(GC), the properties of bio-char were analyzed by the Brunauer-Emmett-Teller(BET) and Barrett-Joyner-Halenda(BJH) methods, and the components of bio-oil were analyzed by gas chromatograph/mass spectrometry(GC/MS). Results showed that as the pyrolysis temperature increased, the yield of bio-gas increased from 40.00% to 46.50%; whereas, the yields of bio-char and bio-oil decreased from 26.50% to24.00% and 33.50% to 29.50%, respectively. At 700 ℃, the lower heating value(LHV) of bio-gas reached its maximum value of 12.11 MJ·N~(-1)·m-3with components of CO2(24.00%), C O(25.00%), CH4(15.50%), H2(25.50%), and CnHm(2≤ n≤4)(0.97%); also the maximum values for LHV(31.8 MJ·kg~(-1)) and specific surface area(536.13 m2·g~(-1)) were attained. The main components in the bio-oil were acetic acid(5.30%), 1-hydroxy-2-butanone(4.10%), hydroxy-acetone(8.50%), phenol(2.70%), and methylphenol(3.90%) which could be important chemicals source by refining.

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