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共沸物分离的精馏-膜分离集成工艺策略

作者:时间:2020-07-28点击数:

全文下载:    202004010.pdf


文章编号: 1672-6987202004-0070-06 DOI 10.16351/j.1672-6987.2020.04.010

 

 张远鹏, 王晓红* 洪娟, 李明高, 丁欣, 李文魁, 安隆隆

(青岛科技大学 化工学院,山东 青岛 266042


摘要: 针对工业共沸物类型繁多而导致分离工艺的千差万别,本研究提出了一种基于智能型遗传规划(GP)的精馏-膜分离集成过程综合求解策略。对于任何的共沸物分离,其可以快速计算出经济最优的精馏-分离集成工艺流程。本研究以甲醇-甲苯共沸物系和适用于此物系的壳聚糖膜为计算实例,对该物系的三种进料流量及三种进料组成匹配的各种情况分别进行优化以验证算法的可靠性。计算结果表明:算法可以快速准确地搜索到各种进料情况下的最优集成流程。对多组最优数据分析发现,该物系的进料组成变化对膜面积影响较大,进而影响膜分离费用。本研究提出的综合求解策略可随时对各类膜的费用模型进行修正,因此可对尚处于实验研究阶段的膜的未来工业化应用与进一步改性提供帮助。

关键词: 共沸物分离; 精馏-膜分离集成; 经济性分析; 遗传规划

中图分类号: TQ 028.3文献标志码: A

引用格式: 张远鹏, 王晓红, 洪娟, . 共沸物分离的精馏-膜分离集成工艺策略\[J\]. 青岛科技大学学报(自然科学版), 2020 414): 70-75.

ZHANG Yuanpeng, WANG Xiaohong, HONG Juan, et al.  Study on the integrated technology of distillation-membrane separation for azeotrope separation\[J\]. Journal of Qingdao University of Science and TechnologyNatural Science Edition), 2020 414): 70-75.

 


 Study on the Integrated Technology of Distillation-membrane

 Separation for Azeotrope Separation

 

ZHANG Yuanpeng, WANG Xiaohong, HONG Juan, LI Minggao, DING Xin, LI Wenkui, AN Longlong

(College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042,China)

 

Abstract: The separation of industrial azeotropes by a new integrated process of distillation-membrane separation has the prominent advantages of energy saving and environmental protection, thus it has always been the focus of research. In view of the wide variety of industrial azeotropes and the different separation processes, a comprehensive solution strategy for the integrated distillation-membrane separation process based on intelligent genetic programming (GP) is proposed in this paper. It can quickly calculate the economic optimal distillation-membrane separation integrated process for any azeotrope separation. In this paper, the methanol-toluene azeotrope system and the chitosan membrane suitable for this system are taken as examples to optimize the three kinds of feed flow and the matching conditions of the three kinds of feed composition to verify the reliability of the algorithm. The results show that the algorithm can quickly and accurately search the optimal integration flow under various feeding conditions. The analysis of multiple optimal data shows that the change of the feed composition of the system has a great influence on the membrane area, which further affects the membrane separation cost. The comprehensive solution strategy proposed in this paper can modify the cost model of various membranes at any time. There, it can provide help for the future industrial application and further modification of membranes which are still in the experimental research stage.

Key words: separation of azeotrope distillation-membran economic analysis genetic programming

 

收稿日期:  2019-11-01

基金项目: 国家自然科学基金项目(21676151.

作者简介: 张远鹏(1993—),男,硕士研究生.*通信联系人.


 

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