Abstract: C9+ heavy aromatics from reformation unit contain hardly olefins,show a good stability and can be further processed and utilized.There are currently 3 kinds of utilization routes for C9+ heavy aromatics from reformation,such as using as a blending component for oil products,using as a raw material for production of BTX,and being separated and utilized.This paper reviews the separation technologies for C9+ heavy aromatics from reformation,introduces the separation and utilization status of C9+ heavy aromatics from reformation in China,and analyzes the investment and economic effects of the separation and utilization route.In a sum,China has developed mature separation technologies for major components in C9+ heavy aromatics from reformation,including 1,2,4-trimethylbenze,mesitylene,methylethylbenzene and durene.However,the market sizes for these four products are not large,the companies shall be in cautious in investing on such projects.
任慧勇, 杨卫兰, 张蓓. 中国重整C9+重芳烃分离和利用机会分析[J]. 现代化工, 2020, 40(8): 11-14,20.
REN Hui-yong, YANG Wei-lan, ZHANG Pei. Opportunities for separation and utilization of C9+ heavy aromatics from reformation in China. Modern Chemical Industry, 2020, 40(8): 11-14,20.