化工进展 ›› 2024, Vol. 43 ›› Issue (S1): 189-208.DOI: 10.16085/j.issn.1000-6613.2024-1077

• 能源加工与技术 • 上一篇    下一篇

基于反应器设计的有机液态储氢载体脱氢反应强化研究进展

王波1(), 王斌1,2, 龚翔1,2(), 杨福胜1,2, 方涛1,2()   

  1. 1.西安交通大学化学工程与技术学院,陕西 西安 710049
    2.陕西氢易能源科技有限公司,陕西 西安 712000
  • 收稿日期:2024-07-05 修回日期:2024-08-24 出版日期:2024-11-20 发布日期:2024-12-06
  • 通讯作者: 龚翔,方涛
  • 作者简介:王波(1999—),男,博士研究生,研究方向为有机液态储氢技术。E-mail:wb15281123670@stu.edu.cn
  • 基金资助:
    陕西省重点研发计划(2024GX-ZDCYL-04-05);陕西省青年科技新星项目(2024ZC-KJXX-073);西安市英才计划(XAYC240010);陕西省自然科学基础研究计划(2022JZ-07);西安市科技计划(23ZCKCGZH0005);中国博士后科学基金会项目(2024M752588);咸阳市重大科技成果转化落地专项项目(L2023-ZDKJ-QCY-CGLD-GY-007)

Enhancing dehydrogenation performance of liquid organic hydrogen carriers based on reactor design: Research progress

WANG Bo1(), WANG Bin1,2, GONG Xiang1,2(), YANG Fusheng1,2, FANG Tao1,2()   

  1. 1.College of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
    2.Shaanxi HydroTransformer Energy Technologies Co. , Ltd. , Xi'an 712000, Shaanxi, China
  • Received:2024-07-05 Revised:2024-08-24 Online:2024-11-20 Published:2024-12-06
  • Contact: GONG Xiang, FANG Tao

摘要:

有机液态储氢载体(liquid organic hydrogen carriers, LOHC)技术是一种应用前景广阔的液态储氢技术,但LOHC脱氢过程中动力学缓慢等问题制约了该技术发展,基于动力学和传热传质强化的反应器设计是必然选择。本文分析了有机液态储氢载体脱氢反应动力学性能强化机制,指出催化剂表面高反应物浓度和高温是高反应速率的关键,且需减少副产物和催化剂失活。提出了传热强化、传质强化策略,以固定床反应器为例介绍了强化传热的目标和措施,指出了强化传质应提高外扩散速率并避免内扩散的影响。简述了多种类型LOHC“气液固”三相反应器的研究进展及其强化策略,最后总结了这些反应器的特点并提出了可能的新型反应器设计方向。可为针对有机液态储氢材料脱氢过程的新型反应器开发提供理论思路和参考依据。

关键词: 氢能, 有机液态储氢载体, 反应器, 脱氢, 强化

Abstract:

Liquid organic hydrogen carrier (LOHC) technology is a promising liquid hydrogen storage technology, but slow kinetics during LOHC dehydrogenation process has restricted the development of LOHC. The reactor design based on heat transfer, mass transfer and kinetics enhancement is an inevitable choice. This paper analyzed the mechanism of LOHC dehydrogenation kinetics enhancement, and pointed out that high concentration of reactants and high temperature on the catalyst surface were the key to high reaction rate, and the byproducts and catalyst deactivation should be reduced. It proposed heat transfer and mass transfer enhancement strategies and introduced the objectives and measures of heat transfer enhancement of fixed bed reactor as an example. It pointed out that mass transfer enhancement should increase the external diffusion rate and avoid the influence of internal diffusion. The research summarized progress and intensification strategies of various types of LOHC“gas-liquid-solid”three-phase reactors. Finally, it summarized the characteristics of these reactors and put forward the possible new reactor design direction. It could provide theoretical ideas and reference for developing new reactors for LOHC dehydrogenation process.

Key words: hydrogen energy, liquid organic hydrogen carriers, reactor, dehydrogenation, enhancement

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