化工进展 ›› 2021, Vol. 40 ›› Issue (S2): 109-116.DOI: 10.16085/j.issn.1000-6613.2021-1194

• 能源加工与技术 • 上一篇    下一篇

木质素制备生物液体燃料进展

简雅婷1,2(), 余强2(), 陈小燕2, 王帆2,3, 王忠铭2, 袁振宏2   

  1. 1.中国科学技术大学能源科学与技术学院,安徽 合肥 230026
    2.中国科学院广州能源研究所,中国科学院 可再生能源重点实验室,广东省新能源和可再生能源研究开发与应用重点实验室,广东 广州 510640
    3.中国科学院大学,北京 100039
  • 收稿日期:2021-06-04 修回日期:2021-06-16 出版日期:2021-11-12 发布日期:2021-11-12
  • 通讯作者: 余强
  • 作者简介:简雅婷(1998—),女,硕士研究生,研究方向为生物质能源转化。E-mail:JYT1998717@ustc.edu.cn
  • 基金资助:
    国家自然科学基金(51876206);广东省自然科学基金(2018A030313012);广州市重点研发计划(202103000011);广东省特支计划科技创新青年拔尖人才项目(2016TQ03N647)

Progress in the preparation of liquid biofuels from lignin

JIAN Yating1,2(), YU Qiang2(), CHEN Xiaoyan2, WANG Fan2,3, WANG Zhongming2, YUAN Zhenhong2   

  1. 1.School of Energy Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, China
    2.Guangzhou Institute of Energy Conversion, Key Laboratory of Renewable Energy, Chinese Academy of Sciences,Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, Guangdong, China
    3.Chinese Academy of Sciences University, Beijing 100039, China
  • Received:2021-06-04 Revised:2021-06-16 Online:2021-11-12 Published:2021-11-12
  • Contact: YU Qiang

摘要:

木质素中含有丰富的芳环结构,可以作为可持续再生的原料用于生产高值能源及化工品。但由于木质素结构复杂,现阶段用于制备生物液体燃料仍处于探索阶段。本文首先介绍了木质素通过催化热解、催化氢解、催化氧化3种解聚方式制备生物液体燃料的进展,分析了当前解聚产物存在低碳原子数、高氧含量的不足而导致其难以投入生产使用的现状,指出应通过C—C偶联方法(包括羟醛缩合、烷基化反应、寡聚反应以及Diels-Alder 反应)增加产物碳原子数、使用加氢脱氧(hydrodeoxygenation, HDO)工艺以降低产物氧含量,从而实现由木质素制备高密度生物液体燃料。最后对当前木质素制备高密度燃料所面临的挑战以及未来研究趋势进行了总结与展望,指出构建高效催化体系,耦合解聚、C—C偶联和HDO过程,将是该领域未来研究重点。

关键词: 生物液体燃料, 木质素解聚, C—C偶联, 加氢脱氧

Abstract:

Lignin is rich in aromatic ring structure, which can be used as a sustainable renewable raw material for the production of high-value energy and chemical products. However, due to the complex structure of lignin, it is still in the exploratory stage for the preparation of bio-liquid fuels. This article first introduces the progress of lignin in the preparation of bio-liquid fuels through three depolymerization methods: catalytic pyrolysis, catalytic hydrogenolysis, and catalytic oxidation. The current depolymerization products have low carbon number and highoxygen content, which makes it difficult to prepare, and the current status of production and use indicates that C—C coupling methods (including aldol condensation, alkylation, oligomerization and Diels-Alder reactions) should be used to increase the number of carbon atoms in the product, and using hydrodeoxygenation (HDO) to reduce the oxygen content of the product, so as to realize the preparation of high-density bio-liquid fuel from lignin. Finally, it summarizes and prospects the current challenges faced by lignin to prepare high-density fuels and future research trends. It is pointed out that the construction of an efficient catalytic system that couples depolymerization, C—C coupling and HDO processes will be the focus of future research in this field.

Key words: liquid fuel, lignin depolymerization, C—C coupling, hydrodeoxygenation

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