Optimization and Control of Extractive Distillation with Heat Integration for Separating Benzene/Cyclohexane Mixtures

作     者：Li Lumin Tu Yangqin Guo Lianjie Sun Lanyi Tian Yuanyu 

作者机构：State Key Laboratory of Heavy Oil Processing China University of Petroleum 

基　　金：supported by the National Natural Science Foundation of China(grant number 21476261) the Key Research and Development Plan Project of Shandong Province(grant number 2015GGX107004) 

出 版 物：《China Petroleum Processing & Petrochemical Technology》 (中国炼油与石油化工（英文版）)

年 卷 期：2016年第18卷第4期

页      码：117-127页

摘      要：In this work, the extractive distillation with heat integration process is extended to separate the pressure-insensitive benzene-cyclohexane azeotrope by using furfural as the entrainer. The optimal design of extractive distillation process is established to achieve minimum energy requirement using the multi-objective genetic algorithm, and the results show that energy saving for this heat integration process is 15.7%. Finally, the control design is performed to investigate the system s dynamic performance, and three control structures are studied. The pressure-compensated temperature control scheme is proposed based on the first two control structures, and the dynamic responses reveal that the feed disturbances in both flow rate and benzene composition can be mitigated well.

主 题 词：苯/环己烷混合物 萃取精馏 精馏分离 优化设计 控制设计 多目标遗传算法 压力敏感 控制结构 

学科分类：0808[工学-自动化类] 081704[081704] 08[工学] 0820[工学-航空航天类] 0821[工学-兵器类] 0817[工学-轻工类] 0807[工学-电子信息类] 0827[工学-食品科学与工程类] 081701[081701] 0703[理学-化学类] 0802[工学-机械学] 0702[理学-物理学类] 0801[工学-力学类] 

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