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现代化工  2018, Vol. 38 Issue (4): 193-196,198    DOI: 10.16606/j.cnki.issn0253-4320.2018.04.045
  工艺与设备 本期目录 | 过刊浏览 | 高级检索 |
基于自热回收技术的新型节能变压精馏过程在共沸物分离中的应用
夏慧, 陈荣, 叶青, 冯申尧, 陈景行, 刘通, 吴卫忠
常州大学石油化工学院, 江苏 常州 213164
Application of a self-heat recuperation technology-based novel energy-saving pressure swing distillation process in separation of azeotropes
XIA Hui, CHEN Rong, YE Qing, FENG Shen-yao, CHEN Jing-xing, LIU Tong, WU Wei-zhong
School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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摘要 基于乙酸异丁酯和异丁醇物系共沸组成随压力变化显著的特点,可采用变压精馏技术分离乙酸异丁酯和异丁醇物系;为了降低变压精馏过程的能耗,应用自热回收理论设计了一种新型节能变压精馏工艺,并用换热网络技术对过程进行了热集成设计。同时对传统变压精馏工艺及新系统进行了能耗分析对比。结果表明,自回热系统的净能耗比原系统降低了58.30%,年度总费用节省了37.89%,二氧化碳排放量也大大降低。
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夏慧
陈荣
叶青
冯申尧
陈景行
刘通
吴卫忠
关键词:  自热回收技术  变压精馏  能耗  TAC  二氧化碳排放量  节能    
Abstract: Based on the fact that the azeotropic composition of isobutyl acetate and isobutyl alcohol mixture varies with changes of pressure,the pressure swing distillation (PSD) process is recommended to separate the isobutyl acetate-isobutyl alcohol mixture.In order to reduce the energy consumption of conventional PSD process,a novel energy saving SHR-PSD process is designed by applying the self-heat recuperation technology (SHRT) and the heat integration of the SHR-PSD process is designed via the heat exchanger network (HEN).The energy consumption of the SHR-PSD process is compared with that of conventional PSD process.The results reveal that the net energy consumption of the SHR-PSD process can be reduced by 58.30% compared with that of conventional PSD process,the SHR-PSD process can also save 37.89% of TAC compared with that of conventional PSD process.Moreover,the CO2 emissions of the SHR-PSD process can be greatly reduced compared with the conventional PSD process.
Key words:  self-heat recuperation technology    pressure swing distillation    energy consumption    TAC    CO2 emissions    energy saving
收稿日期:  2017-10-25      修回日期:  2018-02-23           出版日期:  2018-04-20
TQ021.8  
基金资助: 江苏省前瞻性联合研究项目(BY2016029-04)
通讯作者:  叶青(1964-),女,教授,研究方向为化工分离过程,通讯联系人,huagonglou508@126.com。    E-mail:  huagonglou508@126.com
作者简介:  夏慧(1992-),男,研究生
引用本文:    
夏慧, 陈荣, 叶青, 冯申尧, 陈景行, 刘通, 吴卫忠. 基于自热回收技术的新型节能变压精馏过程在共沸物分离中的应用[J]. 现代化工, 2018, 38(4): 193-196,198.
XIA Hui, CHEN Rong, YE Qing, FENG Shen-yao, CHEN Jing-xing, LIU Tong, WU Wei-zhong. Application of a self-heat recuperation technology-based novel energy-saving pressure swing distillation process in separation of azeotropes. Modern Chemical Industry, 2018, 38(4): 193-196,198.
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http://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2018.04.045  或          http://www.xdhg.com.cn/CN/Y2018/V38/I4/193
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