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生物质化学工程 ›› 2011, Vol. 45 ›› Issue (4): 23-26.

• 论文 • 上一篇    下一篇

稻壳快速热解制备生物油条件探索及产物分析

徐俊明, 戴伟娣, 许玉, 蒋剑春   

  1. 中国林业科学研究院 林产化学工业研究所;中国林业科学院 林业新技术研究所 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
  • 收稿日期:2011-04-28 修回日期:1900-01-01 出版日期:2011-07-30 发布日期:2011-07-30
  • 通讯作者: 蒋剑春(1955- ),研究员,博士,博士生导师,研究领域:生物质能源与活性炭;E-mail:bio-energy@163.com。

Conditions of Rice Husk Fast Pyrolysis in Fluidized Bed and Its Product Analysis

XU Jun-ming, DAI Wei-di, XU Yu, JIANG Jian-chun   

  1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Laboratory for Biomass Chemical Utilization, Research Institute of New Technology;Key and Open Lab.on Forest Chemical Engineering, SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
  • Received:2011-04-28 Revised:1900-01-01 Online:2011-07-30 Published:2011-07-30

摘要: 以稻壳为原料,通过流化床快速热解的方式制备生物油。初步考察了螺旋进料速率对流化床反应参数的影响。当进料速率由 4 kg/h 提高至 5 kg/h 时,床层温度明显下降,床层压差明显增加,燃气流量也明显增加,表明热解产物更多地发生了二次裂解反应。采用GC-MS对快速热解所得生物油的组成进行分析,采用TG-DSC考察生物油的热稳定性,表明在250~400℃ 之间,出现较强的放热现象,缩聚现象严重,并对其重要的燃料性能进行表征,pH值2.33,水分 24.0%,热值 16.3 MJ/kg,密度 1.17 g/mL,黏度 45 mm2/s(30℃)。

关键词: 稻壳, 热解, 生物油

Abstract: Bio-oil from rice husk was prepared by fast pyrolysis. The effect of feed rate on the reaction parameters of fluidized reactor was investigated. With increasing feed rate (4 kg/h to 5 kg/h) it was found that the pressure difference and pyrolysis gas were also increased, while reaction temperature decreased. These results indicated that secondly-cracking reaction was increased in pyrolytic products. The components of product were analysized by GC-MS. Thermal stability of bio-oil was determined by TG-DSC. The major fuel properties of bio-oil were characterized.

Key words: rice husk, pyrolysis, bio-oil

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