Eco‐efficient Separation of Mono‐ and Dichloroacetic Acid by Thermally Coupled Extractive Distillation,Chemical Engineering & Technology

当前位置： X-MOL 学术 › Chem. Eng. Technol. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Eco‐efficient Separation of Mono‐ and Dichloroacetic Acid by Thermally Coupled Extractive Distillation
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-09-24 , DOI: 10.1002/ceat.202000232
Amit K. Chandra ₁ , Iulian Patraşcu ₂ , Costin Sorin Bîldea ₂ , Anton A. Kiss ₁

Affiliation

Due to its high reactivity, monochloroacetic acid (MCA) is an essential intermediate used in the manufacturing of a wide variety of chemicals. Its industrial production process is highly energy‐ and capital‐intensive, requiring costly purification steps to remove dichloroacetic acid (DCA) impurities. Here, an innovative eco‐efficient process for MCA‐DCA separation is proposed based on extractive distillation in a fully thermally coupled system (a dividing‐wall column (DWC) or an equivalent side‐rectifier configuration) using a new effective solvent: diethylene glycol dipentylether. The design was optimized by performing sensitivity analyses and varying key operating and design parameters. The study proves that separating MCA‐DCA by an extractive DWC (or thermally coupled) is feasible, efficient, controllable, economic, and sustainable.

中文翻译：

热耦合萃取蒸馏的生态高效分离一氯乙酸和二氯乙酸

由于其高反应活性，一氯乙酸（MCA）是用于制造各种化学品的重要中间体。其工业生产过程耗能和资金密集，需要昂贵的纯化步骤以去除二氯乙酸（DCA）杂质。在此，提出了一种创新的生态有效的MCA-DCA分离方法，该方法基于萃取热在全热偶合系统（分隔壁塔（DWC）或等效的侧馏塔配置）中使用新的有效溶剂：二甘醇二戊醚。通过执行灵敏度分析以及更改关键的操作和设计参数来优化设计。研究证明，通过萃取DWC（或热耦合）分离MCA-DCA是可行，高效，可控，经济和可持续的。

更新日期：2020-11-19

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11