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生物质化学工程 ›› 2016, Vol. 50 ›› Issue (4): 6-12.doi: 10.3969/j.issn.1673-5854.2016.04.002

• 研究报告 • 上一篇    下一篇

Ni-CeO2/γ-Al2O3电催化间甲基苯酚水蒸气重整的实验研究

冉泽朋, 陆强, 王昕, 胡斌, 董长青   

  1. 华北电力大学 生物质发电成套设备国家工程实验室, 北京 102206
  • 收稿日期:2015-12-28 出版日期:2016-07-31 发布日期:2016-10-08
  • 通讯作者: 陆强(1982-),男,副教授,博士,硕士生导师,研究方向:生物质高效热解转化;E-mail:qianglu@mail.ustc.edu.cn。 E-mail:qianglu@mail.ustc.edu.cn
  • 作者简介:冉泽朋(1990-),男,河北保定人,硕士生,研究方向:生物质热解气化焦油催化转化研究
  • 基金资助:
    国家自然科学基金资助项目(51576064);中央高校基本科研业务费专项基金(2016YQ05,2015ZZD02)

Electrochemical Catalytic Steam Reforming of m-Cresol with Ni-CeO2/γ-Al2O3 Catalyst

RAN Ze-peng, LU Qiang, WANG Xin, HU Bin, DONG Chang-qing   

  1. National Engineering Laboratory for Biomass Power Generation Equipment, North China Electric Power University, Beijing 102206, China
  • Received:2015-12-28 Online:2016-07-31 Published:2016-10-08

摘要: 以间甲基苯酚为生物质气化焦油含氧模型化合物,采用Ni-CeO2/γ-Al2O3催化剂开展了电催化水蒸气重整实验研究,考察了电流强度和重整温度对间甲基苯酚转化率、产气组成以及催化剂积碳的影响,并在600℃下,考察了催化剂的稳定性以及电流对催化剂稳定性的改善作用。结果表明:采用电催化方法能够显著提高间甲基苯酚的重整效率,在使用2.4g催化剂和立式管式炉的条件下,重整温度为700℃以及电流强度为3A时,转化率达到99.7%;提高温度和电流能够显著提高产气中CO的体积分数,同时在一定程度上降低了CO2和H2的体积分数;此外,电流的引入也能够减少催化剂表面积碳的形成并显著提高催化剂的稳定性。

关键词: 焦油, 电催化水蒸气重整, 间甲基苯酚, Ni-CeO2/&gamma, -Al2O3

Abstract: m-Cresol was selected as the oxygenated model compound of biomass gasification tar to study the electrochemical catalytic steam reforming using the Ni-CeO2/γ-Al2O3 as catalyst. Experiments were carried out to reveal the effects of electric current intensity and reforming temperature on the m-cresol conversion, product gas composition and carbon deposition of the catalyst. In addition, the stability tests at 600℃ were conducted to evaluate the stability of the catalyst and the improving effect of the electric current on the catalyst stability.The results indicated that the electrochemical catalytic method significantly improved the reforming efficiency of the m-cresol.The conversion rate reached ashigh as 99.7% at 700 ℃ and electric current of 3A with 2.4g catalyst in the vertical tube furnace.The elevation of the temperature and current intensity could increase the CO volume fraction, and decrease the concentrations of CO2 and H2.Furthermore, the presence of the electric current also reduced the carbon deposition on the catalyst and enhanced the stability of the catalyst.

Key words: tar, electrochemical catalytic steam reforming, m-cresol, Ni-CeO2/γ-Al2O3

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