化工进展 ›› 2020, Vol. 39 ›› Issue (1): 152-165.DOI: 10.16085/j.issn.1000-6613.2019-0432

• 工业催化 • 上一篇    下一篇

甲醇蒸汽重整制氢反应动力学研究进展

庄晓如(),徐心海(),夏鑫,李伦,徐文福   

  1. 哈尔滨工业大学(深圳)机电工程与自动化学院,广东 深圳 518055
  • 收稿日期:2019-03-22 出版日期:2020-01-05 发布日期:2020-01-14
  • 通讯作者: 徐心海
  • 作者简介:庄晓如(1989—),女,博士,研究方向为流体传热传质、制氢反应器、太阳能热发电等。E-mail:zhuangxiaoru@hit.edu.cn
  • 基金资助:
    国家自然科学基金(51706056);中国博士后科学基金(2018M631927);深圳市基础研究自由探索项目(JCYJ20180306171730206)

Review of reaction kinetics of methanol steam reforming forhydrogen production

Xiaoru ZHUANG(),Xinhai XU(),Xin XIA,Lun LI,Wenfu XU   

  1. School of Mechanical Engineering and Automation, Harbin Institute of Technology(Shenzhen), Shenzhen 518055, Guangdong, China
  • Received:2019-03-22 Online:2020-01-05 Published:2020-01-14
  • Contact: Xinhai XU

摘要:

甲醇蒸汽重整制氢技术对于解决汽车、船舶等交通工具上燃料电池的氢源问题具有重要意义,近年来已成为碳氢燃料重整制氢的研究热点。本文首先综述了甲醇蒸汽重整制氢的5种反应机理,该方面的研究仍处于定性和推理阶段,尚未达成统一的结论。然后分析了甲醇蒸汽重整反应动力学的研究进展,发现大多研究是基于Cu系催化剂提出,反应温度集中在160~350℃,反应压力多为1atm,研究表明反应物水醇比最优值为1.3~1.4。最后,整理了研究中所提出的动力学模型,指出相较于单速率和三速率模型,双速率模型可反映产物中CO的含量及其对反应速率的影响,且模型相对简单,动力学方程的求解过程也相对容易,但其适用性还有待进一步验证。本文可为甲醇蒸汽重整制氢系统的设计与优化提供理论依据。

关键词: 甲醇蒸汽重整, 反应机理, 反应动力学, 动力学模型, 制氢

Abstract:

Methanol steam reforming is of great significance to solve the hydrogen source problem of fuel cells in mobile devices such as automobiles and ships. In recent years, it has become a research hotspot of hydrogen production by reforming of hydrocarbon fuels. Firstly, this paper classified the reaction mechanisms of methanol steam reforming into five kinds. As the related researches are still in development, no unified conclusion has yet been reached. Then, the research progress of kinetics investigations on methanol steam reforming was analyzed. It is found that most of kinetic experiments were performed at atmospheric pressure in the temperature range of 160—350℃ using Cu-based catalysts. The optimum steam to methanol ratio was recommended as 1.3—1.4. Finally, the kinetic models in the studies were summarized. Comparing with the single-rate and triple-rate kinetic models, the double-rate model can give the content of CO in products and its influence on the reaction rate. Besides, the model has relatively simple structure and the dynamic equation is easy to solve. Nevertheless, the applicability of those models in engineering need to be further verified. This paper can provide a theoretical basis for the design and optimization of methanol steam reforming system.

Key words: methanol steam reforming, reaction mechanism, reaction kinetics, kinetic modeling, hydrogen production

中图分类号: 

京ICP备12046843号-2;京公网安备 11010102001994号
版权所有 © 《化工进展》编辑部
地址:北京市东城区青年湖南街13号 邮编:100011
电子信箱:hgjz@cip.com.cn
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn