DOI: 10.11799/ce202602025
Research progress on carbon materials prepared from coal direct liquefaction pitch
HAO Guojun
YAN Guochun
QIU Jieshan
LI Yi
DUAN Xiaojun
ZHANG Shijie
Abstract：Coal direct liquefaction pitch is a solid product obtained from the hydrogenation liquefaction of coal.Characterized by high aromaticity,high carbon content,and a tendency to undergo polymerization or cross-linking,it is an excellent precursor for preparing various high-value-added carbon materials due to its wide application potential and high economic value.This paper introduces the source,chemical composition,and macromolecular structure characteristics of coal direct liquefaction pitch,compares it with coal tar pitch,and reviews its purification and various modification methods.The research progress in utilizing coal direct liquefaction pitch for the preparation of broad carbon materials is also systematically elaborated,including developments in modified pitch,carbon fibers,needle coke,porous carbon materials,and energy storage materials.Furthermore,key performance indicators and limiting factors in its applications are discussed,and the future prospects for the utilization of coal direct liquefaction pitch are outlined.
Keywords：coal direct liquefaction pitchcarbon materialspitch modificationcoal chemical industrycomprehensive utilization
Publication Date：2026-02-20
Online Publishing Date：2026-03-23(First online date of this platform, not the publication date of the document)
Pages：10( 197-206 )