连续重整重芳烃综合利用工艺的探讨

介绍了国内外连续重整重芳烃利用工艺技术现状，根据连续重整重芳烃的原料特点和已有的加工经验，提出了进一步深化连续重整重芳烃开发应用的萃取精馏-异构化联合工艺技术路线。该工艺将连续重整重芳烃的直接利用和间接利用有机结合起来，不仅可以大幅度增加均三甲苯的产量，而且能副产连三甲苯、均四甲苯、间／对甲乙苯、系列芳烃溶剂油副产品，实现高附加值产品多元化，使连续重整重芳烃利用的综合经济性得到改善。

PERSPECTIVES ON COMPREHENSIVE UTILIZATION OF HEAVY AROMATICS FROM CCR UNIT

Current status of heavy aromatics utilization from continuous catalytic reforming (CCR)unit was summarized.Based on the investigation of the characteristics of CCR heavy aromatics and the existing processing experience,a combined process of extractive distillation and isomerization was proposed to further optimize the utilization of said heavy aromatics.The combined process integrated direct and indirect utilization of said heavy aromatics,which not only increased the yield of 1,3,5- trimethylbezene,but also produced byproducts,such as 1,2,3-trimethylbezene,1,2,4,5-tetramethylbezene, meta/para-methyl ethyl benzene,and series of aromatic solvents.As a result,the economic benefit of the utilization of heavy aromatics from CCR was improved.