摘要
随着国内八大炼化基地的逐步建成与投产,未来C_(9)混合芳烃的产量将大幅上涨,如何高效利用C_(9)混合芳烃将成为大型炼厂需要重点解决的问题。本文以重整装置副产的C_(9)混合芳烃为原料,经临氢裂解、临氢烷基化组合技术,生产高价值的苯/甲苯/二甲苯(BTX)和均四甲苯,反应条件缓和,目的产物选择性高。在最佳反应条件下,油相产物平均收率为86.94%,其中富含BTX的C_5~C_(9)馏分平均含量为80.93%,均四甲苯平均含量为12.98%,C^(+)_(10)馏分(不含均四甲苯)平均含量为6.09%。对于C_(9)混合芳烃年处理量为9万吨的工业装置,通过本文提供的组合技术可实现年利润5543.5万元。本文提出的C_(9)混合芳烃的组合技术具有较高的技术可行性和经济可行性,符合炼化一体化的发展趋势,是未来炼厂解决C_(9)混合芳烃出路的首选途径之一。
In China,eight big refining and chemical bases have been built and in production in recent years,so the production of C9 aromatics will increase significantly in the future.Large refineries need to focus on how to process C9 aromatics efficiently.In this paper,C9 aromatics from reformer are used to produce BTX and durene by hydrocracking&hydroalkylation.The reaction conditions are mild and the products are of high economic value with high selectivity.Under the optimum reaction conditions,the average yield of oil is 86.94%,in which the average content of C5~C9 fraction(rich in BTX)is 80.93%,the average content of durene is 12.98%,and the average content of C+10 fraction(excluding durene)is 6.09%.For the plant with an annual capacity of processing 90000 tons C9 aromatics,an annual profit of 55.435 million yuan can be realized.The processing route proposed in this paper has high technical feasibility and economic feasibility,and is in line with the development trend of refining and chemical integration,therefore it is one of the preferred ways to process C9 aromatics in the future.
作者
臧甲忠
王银斌
洪鲁伟
于海斌
彭晓伟
李晨
汪洋
郭春垒
ZANG Jiazhong;WANG Yinbin;HONG Luwei;YU Haibin;PENG Xiaowei;LI Chen;WANG Yang;GUO Chunlei(CNOOC Tianjin Chemical Research and Design Institute Limited Corporation,Tianjin 300131,China;Tianjin Refining and Catalytic Technology Engineering Center,Tianjin 300131,China)
出处
《化工进展》
EI
CAS
CSCD
北大核心
2021年第5期2593-2602,共10页
Chemical Industry and Engineering Progress
