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林产化学与工业 ›› 2007, Vol. 27 ›› Issue (3): 15-20.

• 研究报告 • 上一篇    下一篇

生物质热解气化行为的研究

孙云娟, 蒋剑春   

  1. 中国林业科学研究院 林产化学工业研究所;国家林业局 林产化学工程重点开放性实验室, 江苏 南京 210042
  • 收稿日期:2006-06-22 修回日期:1900-01-01 出版日期:2007-06-30 发布日期:2007-06-30
  • 通讯作者: 蒋剑春,研究员,博士生导师,从事林产化学加工领域的生物质热化学转化技术,活性炭制备和应用的基础研究及开发设计工作

Study on Biomass Pyrolysis and Gasification

SUN Yun-juan, JIANG Jian-chun   

  1. Institute of Chemical Industry of Forest Products, CAF;Key and Open Lab.on Forest Chemical Engineering, SFA, Nanjing 210042, China
  • Received:2006-06-22 Revised:1900-01-01 Online:2007-06-30 Published:2007-06-30

摘要: 以固定床为气化反应器,对生物质水蒸气气化的特性进行了一系列实验研究.气化介质水蒸气为一定温度下的蒸汽,由一定流量的氮气载入反应体系内.实验探讨了采用杨木屑作为气化原料时,气化温度、以原料浸泡方式加入的催化剂类型、水蒸气加入量等主要参数对气体产量的影响.结果表明:在较高气化温度下,白云石催化剂中铁含量越多,比表面积越大,中孔越多,水蒸气加入量越多,对气化反应越有利.在原料量1500mg、反应温度900℃、水蒸气蒸发温度48℃、陕西白云石催化剂状态下得到的最高氢气产量为5.95mL/min.

关键词: 生物质, 固定床, 气化, 白云石

Abstract: The characteristics of biomass toward steam gasification in a fixed-bed were studied by experiments.Saturated steam was carried into the gasifier by N2. Effects of gasification conditions on yield of fuel gas, such as gasification temperature, style of catalyst and steam quantity in the gasifier when using poplar sawdust as raw material were investigated. From the experimental results, it can be seen that higher reaction temperature, proper style of calcined dolomite(higher iron content, bigger specific surface area and more mesopores)and higher steam quantity were profitable conditions. The highest hydrogen yield, 5.95 mL/min, was achieved under the conditions of poplar sawdust mass 1500 mg, reaction temperature 900℃, steam(mixed quantitatively with N2)saturation temperature 48℃ using Shaanxi dolomite,as catalyst.

Key words: biomass, fixed bed, gasification, dolomite

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