煤炭工程 ›› 2026, Vol. 58 ›› Issue (2): 197-206.doi: 10.11799/ce202602025

• 研究探讨 • 上一篇    下一篇

煤直接液化沥青制备碳材料的研究进展

郝国军,闫国春,邱介山,李 艺,段晓军,张世杰   

  1. 1. 中国神华煤制油化工有限公司,北京 100011

    2. 北京化工大学 化学工程学院,北京 100029

  • 收稿日期:2025-07-23 修回日期:2025-09-10 出版日期:2026-02-15 发布日期:2026-03-16
  • 通讯作者: 郝国军 E-mail:hao20080302@outlook.com

Research progress on the preparation of carbon materials from direct coal liquefaction pitch

  • Received:2025-07-23 Revised:2025-09-10 Online:2026-02-15 Published:2026-03-16

摘要:

煤直接液化沥青是煤通过加氢液化后的固体产物,其芳香度高、碳含量高、易发生聚合或交联反应,具有应用场景广、经济价值高的优势,是制备各类高附加值碳材料的优良前驱体。本文介绍了煤直接液化沥青来源、化学组成与大分子结构的特征,对比了与煤焦油沥青的区别,介绍了煤直接液化沥青的精制和多种改性方法。系统阐述了煤直接液化沥青改性沥青、碳纤维、针状焦、多孔碳材料、储能材料等广义碳材料方面的研究进展,进一步阐述了其应用关键指标和制约因素,并展望了煤直接液化沥青的应用前景。

关键词: 煤直接液化沥青, 碳材料, 沥青改性, 煤化工, 综合利用

Abstract:

Direct coal liquefaction pitch is a solid product of direct coal liquefaction with hydrogenation, accounting for about 30% of the raw coal. It has the characteristics of high aromaticity, high carbon content, and easy polymerization or cross-linking, which makes it an excellent precursor for preparing high value-added carbon materials with a wider range of application scenarios and high economic value. This article introduces the source, chemical composition, and macromolecular structure of direct coal liquefaction pitch, compares the differences between direct coal liquefaction pitch and coal tar pitch, and introduces the purification and modification methods of direct coal liquefaction pitch. Besides, this review specifically emphasizes the research progress of direct coal liquefaction pitch in the field of generalized carbon materials, including modified pitch, carbon fiber, needle coke, porous carbon materials, energy storage materials, etc. Finally, the key indicators and limiting factors in application are further revealed, and the prospects for the application of direct coal liquefaction pitch are discussed.

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