文献类型：期刊文献

英文题名：Energy, exergy, economic, and environmental analysis of a novel liquid-only transfer dividing wall column with vapor recompression

作者：Song, Zhong-wen[1];Cui, Wei[2];Wu, Yan-yang[1];Wu, Bin[1];Chen, Kui[1];Ji, Li-jun[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[2]Chlor Alkali Chem Ind Co Ltd, Shanghai 200241, Peoples R China

年份：2024

卷号：329

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20234114854198);WOS:【SCI-EXPANDED(收录号:WOS:001089175300001)】；

语种：英文

外文关键词：Dividing wall column; Liquid -only transfer; Vapor recompression; Intermediate reboiler; Sequential iterative optimization; Energy; exergy; economic; and environmental; analysis

摘要：The Kaibel dividing wall column (KDWC) uses a thermal coupling technology for separating quaternary mixtures, which exhibits less energy consumption and more economic benefits than a conventional distillation sequence (CDS). However, it is hard to control the vapor split ratio, which limits the industrialization of KDWC. The liquidonly transfer dividing wall column (LDWC) doesn't involve the vapor split ratio. It has been verified as equivalent to KDWC. To improve LDWC's performance further, four novel vapor recompression-assisted LDWCs are proposed according to the column grand composite curve analysis. And CDS and LDWC are taken as the base cases for comparison. Then, the processes are optimized by the sequential iterative optimization procedures to minimize the total annual cost. The performance of optimized processes is systematically evaluated through energy, exergy, economic, and environmental (4E) analysis. The results demonstrate that the SCVRC-IR-LDWC2, equipped with a side condenser and intermediate reboiler involved in lower vapor side stream withdrawal, performs well in the total annual cost, energy consumption, gas emissions, and thermodynamic efficiency.