煤炭转化2026，Vol.49Issue(2)：11-20,10.DOI:10.19726/j.cnki.ebcc.202602002
煤油共炼残渣中多环芳烃的脱除特性研究
Research on removal characteristics of PAHs in residue of coal-oil co-processing
摘要
Abstract
To verify the green application effectiveness of by-product residue from a 45×104 t/a coal-oil co-processing industrial demonstration plant,an analysis and detection method for polycyclic aromatic hydrocarbons(PAHs)was established by gas chromatography,and the distribu-tion of PAHs in the residue of the coal-oil co-processing reaction system was determined,and a polymerization modification method was applied to remove PAHs.The influence of the modifier,catalyst,solvent,reaction temperature and time on the removal rate of PAHs and the total equivalent content of BaP in the residue was researched,and key indicators were also compared before and after residue modification.The results show that the content of PAHs in the residue is 18.15 mg/g,includ-ing phenanthrene,anthracene,fluoranthene,pyrene,benzo[a]anthracene,chrysene,benzo[b]fluor-anthene,indeno[1,2,3-cd]pyrene and other 16 components.In the conditions of 30％(mreagent:mresidue)terephthaldehyde,40％(mreagent:mresidue)sulfuric acid,50 mL toluene,a reaction temperature of 80℃and reaction time 4h,the maximum removal rate of PAHs and the total equivalent removal rate of BaP in the modified residue reach 98.46％and 95.34％respectively,due to the synergistic effect of electrophilic substitution of modifier,acidic catalysis of catalyst and physical dilution of solvent.After modification,the content of aromatic hydrocarbon decreases from 57.50％to 33.46％,the content of aliphatic compound and oxygen compounds increases from 25.24％to 37.43％,and oxygen-containing compounds increases by 9.56％.The softening point increases from 105 ℃ to 118 ℃,the penetration degree decreased by 2.2(50℃,0.1 mm),and the thermal stability and rheological prop-erties of the residue are improved to some extent.关键词
煤油共炼/残渣/改性/多环芳烃/脱除Key words
coal-oil co-processing/residue/modify/polycyclic aromatic hydrocarbons/removal分类
化学化工引用本文复制引用
黄勇,张晓欠,兰伟伟,康徐伟,刘丹,杜若宇..煤油共炼残渣中多环芳烃的脱除特性研究[J].煤炭转化,2026,49(2):11-20,10.基金项目
陕西省重点研发计划项目(2025CY-YBXM-490)和陕西延长石油(集团)有限责任公司科技项目(YCSY2025ZS-B-02) （2025CY-YBXM-490）
