江汉大学学报(自然科学版) ›› 2012, Vol. 40 ›› Issue (5): 27-31.

• 化学 • 上一篇    下一篇

微波作用下焦油模型化合物——甲苯裂解实验研究

米铁1,余新明1,吴正舜2   

  1. 1.工业烟尘污染控制湖北省重点实验室江汉大学,江汉大学化学与环境工程学院,湖北武汉430056;
    2.华中师范大学化学学院,湖北武汉430079
  • 收稿日期:2012-08-04 出版日期:2012-10-20 发布日期:2013-11-07
  • 通讯作者: 吴正舜(1966—),男,教授,博士,研究方向:生物质能源化工。E-mail:wuzs@mail.ccnu.edu.cn
  • 作者简介:米铁(1968—),男,副教授,博士,研究方向:固体废弃物资源化利用
  • 基金资助:
    国家自然科学基金(51076058);湖北省教育厅科技项目(D20123401)

Experiment of Cracking of Tar Model Compound Toluene Under Microwave

MI Tie1,YU Xin-ming1,WU Zheng-shun2   

  1. 1. Hubei Key Laboratory of Industrial Fume and Dust Pollution Control,School of Chemistry and Environmental Engineering,Jianghan University,Wuhan 430056,Hubei,China;
    2. Chemistry College,Central China Normal University,Wuhan 430079,Hubei,China
  • Received:2012-08-04 Online:2012-10-20 Published:2013-11-07

摘要: 针对不同的热载体C,Al2O3以及上述载体添加催化活性组份Ni时在微波加热与普通电炉加热的条件下对焦油模型化合物甲苯进行裂解实验研究,考察了不同加热方式、催化活性组份与不同热载体对甲苯裂解的影响。研究结果表明采用微波加热与普通加热相比,对甲苯的裂解无明显影响,但对积C率有一定的抑制作用;当甲苯的进料浓度为4.86~5.80g/Nm3,空时为0.124~0.125s,对不同床料微波加热时裂解率为26.24%~55%,而对于普通加热时,在650℃下,与微波相同的床料下普通加热的裂解率为66.02%~100%;催化活性中心体Ni对其载体有明显催化选择性;甲苯在裂解的同时,有少部分甲苯向芳香族程度增加方向进行了转化。

关键词: 甲苯, 微波加热, 焦油模型化合物, 焦油裂解

Abstract: Using different heating carrier C, Al2O3 and adding catalytic material Ni on the carriers, research the cracking of tar model compound toluene with the materials under microwave heating and ordinary oven, investigates the influence of heating method, catalytic component, heat carrier to cracking of toluene. The results show that there is no obvious influence to toluene cracking with microware heating or with ordinary heating, but microwave heating has certain inhibiting function on carbon build-up; when the inlet concentration of toluene is 4.86-5.80 g/Nm3, space-time is 0.124-0.125 s, towards different bed material, the microwave heating cracking rate is 26.24%-55%; and to ordinary heating, under 650℃, the ordinary heating cracking rate with the same bed material is 66.02%-100%; catalytic activity center-Ni has obvious catalytic seletivity on the carrier; meanwhile the crack of toluene, there is small sum of toluene transforming to high aromatic series degree.

Key words: toluene, microwave heat, tar model compound, tar cracking

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