重整C₉⁺重芳烃中几乎不含烯烃，稳定性好，可以进一步加工利用。重整C₉⁺重芳烃目前有3种利用途径：用作油品调和组分；作为制备BTX轻质芳烃的原料；加以分离利用。综述了重整C₉⁺重芳烃分离技术，介绍了中国重整C₉⁺重芳烃分离利用状况，并对投资和效益进行了分析。总体来说，国内主要重整C₉⁺重芳烃组分偏三甲苯、均三甲苯、甲乙苯、均四甲苯分离技术成熟，但市场容量有限，企业投资须慎重。

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(1977-),男,博士,主要从事石油化工领域项目建设投资分析