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生物质化学工程

生物质化学工程 ›› 2015, Vol. 49 ›› Issue (1): 1-6.doi: 10.3969/j.issn.1673-5854.2015.01.001

• 研究报告 •    下一篇

木屑与煤慢速共热解产物特性研究

孙云娟1,2, 蒋剑春1, 许玉1,2, 应浩1,2, 戴伟娣1,2   

  1. 1. 中国林业科学研究院 林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局 林产化学工程重点开放性实验室;江苏省 生物质能源与材料重点实验室, 江苏 南京 210042;
    2. 中国林业科学研究院 林业新技术研究所, 北京 100091
  • 收稿日期:2014-08-20 出版日期:2015-01-30 发布日期:2015-02-10
  • 作者简介:孙云娟(1979-),女,河北唐山人,助理研究员,博士,主要从事生物质热化学转化研究工作。
  • 基金资助:
    中国林科院林业新技术所基本科研业务费专项资金 (CAFINT2014K04);"十二五"国家科技支撑计划资助 (2012BAA09B03);引进国际先进林业科学技术项目 (2014-4-32)

Characteristics of Sawdust and Coal Slow Co-pyrolysis Products

SUN Yun-juan1,2, JIANG Jian-chun1, XU Yu1,2, YING Hao1,2, DAI Wei-di1,2   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and Open Lab.of Forest Chemical Engineering, SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
    2. Research Institude of Forestry New Technology, CAF, Beijing 100091, China
  • Received:2014-08-20 Online:2015-01-30 Published:2015-02-10

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摘要： 采用TG-FTIR联用的分析方法对木屑与煤共热解产物进行分析,结果发现,木屑与煤共热解产物不是两者单独热解的简单叠加,而是木屑与煤协同反应相互促进或抑制的结果。煤化程度越高木屑与煤共热解过程中CO和CH4的产率越多,CO2的产率越少,液体和固体产物越多。木屑与煤掺混比例对于共热解产物的影响规律性不是非常明显,对于CO和CH4,掺混比例5:5时产率最低;CO2在共热解温度<500 ℃时,掺混比例5:5时产率最高,而在共热解温度>500 ℃时,随着煤的掺混比例的增加产率逐渐减小。木屑与褐煤的共热解固体产率随着掺混比例的增加逐渐增大,木屑与无烟煤的共热解固体产率正好相反。

关键词: 生物质, 煤, 煤化程度, 协同反应, 共热解

Abstract: By using TG-FTIR method,the co-pyrolysis products of sawdust and coal were analyzed.It was found that co-pyrolysis products yield was not simple accumulation of mono-pyrolysis,but the result of inhibition or acceleration effect of synergistic reaction.With the increase of coal rank,the CO and CH4 products yields increased,CO2 product yield decreased,and liquid and solid products yields increased.The mixture ratio had less influence on the co-pyrolysis products.With the mixture ratio of 5:5,the CO and CH4 yields were the minimum.When the co-pyrolysis temperature was less than 500 ℃,CO2 yield was the maximum in mixture ratio of 5:5.While the co-pyrolysis temperature was over 500 ℃,CO2 yields decreased with the increase of mixture ration.Solid product yields of sawdust and lignite co-pyrolysis gradually increased as the sawdust ratio in blending raw material promoted.But solid product yields of sawdust and anthracite co-pyrolysis were going in the opposite direction.

Key words: sawdust, coal, coal rank, synergistic effect, co-pyrolysis

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