石油化工2025，Vol.54Issue(3)：341-347,7.DOI:10.3969/j.issn.1000-8144.2025.03.007
催化裂化柴油复合溶剂抽提芳烃工艺
Aromatic hydrocarbon extraction process by catalytic cracking diesel composite solvents
摘要
Abstract
Using catalytic cracking diesel as raw material,the light components containing more monocyclic aromatic hydrocarbons in the raw material were separated by fraction cutting,and only the heavy components were retained.The experimental conditions for the extraction of polycyclic aromatic hydrocarbons were explored by composite solvents,and the content of saturated hydrocarbons in the extracted oil was further reduced with the help of reverse extraction technology.In addition,the composite solvents were recovered by reduced pressure distillation.The experimental results show that the yield of polycyclic aromatic hydrocarbons can reach 75.06%,and the content of polycyclic aromatic hydrocarbons is 94.88%(w)under the conditions of the volume ratio of the composite solvent cyclobutanone and N-methylpyrrolidone at 3∶7,the solvent/oil volume ratio of 1.2,and the extraction temperature of 50℃.After pretreatment and solvent extraction,the aromatic hydrocarbon content in the residual oil decreases from 79.47%(w)in the raw material to 11.59%(w).The color of the recovered solvent becomes darker,and the extraction experiment is carried out by using the recovered solvent.The yield of polycyclic aromatic hydrocarbons is 69.33%,which is slightly lower than that of fresh solvents,realizing the reuse of resources.关键词
催化裂化柴油/溶剂抽提/多环芳烃/复合溶剂/抽余油/反抽提Key words
catalytic cracking diesel/solvent extraction/polycyclic aromatic hydrocarbons/composite solvents/pumping of residual oil/reverse extraction分类
化学化工引用本文复制引用
杨帅康,李琦,许文龙,赵强,田原宇,乔英云..催化裂化柴油复合溶剂抽提芳烃工艺[J].石油化工,2025,54(3):341-347,7.基金项目
中国-沙特石油能源"一带一路"联合实验室建设与联合研究项目(2022YFE0203400). （2022YFE0203400）
