反应精馏分解过氧化氢异丙苯的工艺设计及经济优化  

Process Design and Economic Optimization for the Decomposition of Isopropylbenzene Peroxide by Reactive Distillation

作　　者：刘亲浓 易争明 颜大维 艾秋红[1] LIU Qinnong;YI Zhengming;YAN Dawei;AI Qiuhong(College of Chemical Engineering,Xiangtan University,Xiangtan Hunan 411100,China)

机构地区：[1]湘潭大学化工学院,湖南湘潭411100

出　　处：《辽宁石油化工大学学报》2023年第5期1-6,共6页Journal of Liaoning Petrochemical University

基　　金：2022年度兵团财政科技计划项目(第一批)(2022AA005)。

摘　　要：采用Aspen Plus软件对反应精馏分解过氧化氢异丙苯(CHP)的新工艺以及后续苯酚、丙酮的精制工艺流程进行了稳态模拟。以年度总成本(CTAC)最小为目标函数,对反应精馏塔(RD)及精制工艺流程的操作压力、进料位置及塔板数等进行了经济优化。结果表明,工艺的最优操作参数:RD的总塔板数为34块,精馏段塔板数为27块,反应段塔板数为6块,进料位置为第28块,操作压力为3.0×10^(4)Pa;丙酮精制塔(T101)、异丙苯拔顶塔(T102)、焦油塔(T103)和苯酚精制塔(T104)的总塔板数分别为25、61、23、22块,进料位置分别为第16、45、9、9块,操作压力分别为5.2×10^(4)、5.0×10^(3)、5.5×10^(4)、6.0×10^(3)Pa,此时新工艺流程的CTAC最小值为2239.03万元/a。同时,对传统CHP分解和后续苯酚、丙酮精制工艺进行了稳态模拟及经济优化。结果表明,其CTAC最小值为2608.13万元/a。对比反应精馏工艺与传统工艺流程可知,CTAC可节省14.15%,能耗节省9.01%。This paper uses Aspen Plus software to carry out steady-state simulations of a new process for the reactive distillation of hydrogen peroxide isopropylbenzene(CHP)and subsequent refining processes for phenol and acetone.The operating pressure,feed position and number of plates of the reactive distillation column and the refining process were economically optimised with the objective of minimising the total annual cost(CTAC).The results show that the optimal operating parameters of the process are as follows:the total number of trays of RD was 34,the number of trays in the distillation section was 27,the number of trays in the reaction section was 6,the feed position was 28,and the operating pressure was 3.0×10^(4) Pa.The total plate numbers of acetone refining tower(T101),cumene top tower(T102),tar tower(T103)and phenol refining tower(T104)were 25,61,23 and 22,respectively.The feed positions are 16,45,9 and 9,respectively.The operating pressures were 5.2×10^(4),5.0×10^(3),5.5×10^(4),6.0×10^(3) Pa.The minimum CTAC of the new process was 2239.03×10^(4) yuan/year.At the same time,the steady-state simulation and economic optimization of the traditional CHP decomposition and subsequent phenol and acetone refining process were also carried out,and the minimum CTAC value was 2608.13×10^(4) yuan/year.By comparing the reactive distillation process with the traditional process,it can be seen that CTAC can save 14.15%and energy consumption can save 9.01%.

关 键 词：过氧化氢异丙苯 反应精馏 年度总成本 Aspen Plus 

分 类 号：TQ243.1[化学工程—有机化工]