文献类型：期刊文献

英文题名：Energy, Exergy, Economic, and Environmental Analysis of the Vapor Recompression-Assisted Liquid-Only Transfer Extractive Dividing Wall Column for Separating Minimum-Boiling Point Azeotropes

作者：Xing, Chenghao[1];Song, Zhongwen[1];Wu, Yanyang[1];Wu, Bin[1];Chen, Kui[1];Ji, Lijun[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：63

期号：15

起止页码：6725

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20241515902797);WOS:【SCI-EXPANDED(收录号:WOS:001200649000001)】；

语种：英文

外文关键词：Azeotropes - Boiling point - Costs - Distillation - Distillation columns - Energy utilization - Gas emissions

摘要：The introduction of a dividing wall column into extractive distillation can help reduce energy consumption, while bringing about the difficulty in controlling the vapor split ratio below the vertical partition as well. A liquid-only transfer distillation wall column, which has nothing to do with the vapor split ratio, has been applied for the separation of a minimum-boiling point azeotrope in this work. Meanwhile, both vapor recompression (VRC) and intermediate reboiler (IR) technologies are applied in the liquid-only transfer extractive distillation wall column (LEDWC) for further decreasing energy consumption and the total annual cost. Consequently, four novel configurations are optimized for a minimum total annual cost. All of the processes are evaluated by energy consumption, lost work, economics, and gas emission. It shows that the (RE-)VRC-IR-LEDWC-CR exhibits the best performance. Moreover, it is economic if all the vapor overhead is used for VRC, which reduces the energy consumption, lost work, total annual cost, and gas emission by 39, 31, 25, and 39%, respectively, compared with conventional extractive distillation sequences.