Using Complex Columns with a Side Section and Side Withdrawal in Extractive Distillation of Methyl Acetate–Chloroform Mixtures of Different Compositions

IF 0.6 4区工程技术 Q4 ENGINEERING, CHEMICAL

Theoretical Foundations of Chemical Engineering Pub Date : 2025-06-27 DOI:10.1134/S0040579525700393

D. A. Ramochnikov, E. A. Anokhina, A. V. Saunina, A. V. Timoshenko

{"title":"Using Complex Columns with a Side Section and Side Withdrawal in Extractive Distillation of Methyl Acetate–Chloroform Mixtures of Different Compositions","authors":"D. A. Ramochnikov, E. A. Anokhina, A. V. Saunina, A. V. Timoshenko","doi":"10.1134/S0040579525700393","DOIUrl":null,"url":null,"abstract":"<div><p>The efficiency of using complex columns with a side section (SS) and side withdrawal (SW) in extractive distillation (ED) of methyl acetate–chloroform mixtures of three different compositions was studied. The optimal (according to the criterion of the total energy consumption in the column boilers) parameters of the conventional two-column scheme of extractive distillation, a complex column with a rectifying side section, and a scheme including a column with side withdrawal were determined. The energy efficiency of the columns with a side section and side withdrawal was found to be almost independent of the mixture composition. Both technological solutions provide almost the same (~30%) reduction of energy consumption in the column boilers compared to the conventional scheme, but the number of plates in the scheme including a complex column with side withdrawal is 30% larger than in the complex column with a side section. At the same total number of plates in the columns of all schemes, the energy saving due to the use of the column with side withdrawal is only 10–13%.</p></div>","PeriodicalId":798,"journal":{"name":"Theoretical Foundations of Chemical Engineering","volume":"59 1","pages":"225 - 231"},"PeriodicalIF":0.6000,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Theoretical Foundations of Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0040579525700393","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The efficiency of using complex columns with a side section (SS) and side withdrawal (SW) in extractive distillation (ED) of methyl acetate–chloroform mixtures of three different compositions was studied. The optimal (according to the criterion of the total energy consumption in the column boilers) parameters of the conventional two-column scheme of extractive distillation, a complex column with a rectifying side section, and a scheme including a column with side withdrawal were determined. The energy efficiency of the columns with a side section and side withdrawal was found to be almost independent of the mixture composition. Both technological solutions provide almost the same (~30%) reduction of energy consumption in the column boilers compared to the conventional scheme, but the number of plates in the scheme including a complex column with side withdrawal is 30% larger than in the complex column with a side section. At the same total number of plates in the columns of all schemes, the energy saving due to the use of the column with side withdrawal is only 10–13%.

Abstract Image

查看原文本刊更多论文

在不同成分乙酸甲酯-氯仿混合物的萃取精馏中，采用带侧切和侧提取的复杂色谱柱

研究了三种不同成分乙酸甲酯-氯仿混合物萃取精馏过程中采用侧萃取柱（SS）和侧萃取柱（SW）的效率。以塔式锅炉总能耗为准则，确定了传统萃取精馏两塔方案、带精馏侧段的复合塔方案和带侧提塔方案的最优参数。发现具有侧截面和侧拔柱的能量效率几乎与混合物成分无关。与传统方案相比，两种技术方案在柱式锅炉中提供的能耗降低几乎相同（~30%），但该方案中包含有侧抽的复杂柱的板数比具有侧截面的复杂柱的板数多30%。在所有方案的塔板总数相同的情况下，由于采用带侧拔的塔，节能仅为10-13%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Theoretical Foundations of Chemical Engineering 工程技术-工程：化工

CiteScore

1.20

自引率

25.00%

发文量

审稿时长

24 months

期刊介绍： Theoretical Foundations of Chemical Engineering is a comprehensive journal covering all aspects of theoretical and applied research in chemical engineering, including transport phenomena; surface phenomena; processes of mixture separation; theory and methods of chemical reactor design; combined processes and multifunctional reactors; hydromechanic, thermal, diffusion, and chemical processes and apparatus, membrane processes and reactors; biotechnology; dispersed systems; nanotechnologies; process intensification; information modeling and analysis; energy- and resource-saving processes; environmentally clean processes and technologies.