Multivariate statistical optimization of the ethanol fuel dehydration process using ionic liquids

IF 1 4区工程技术 Q4 CHEMISTRY, APPLIED

Chemical Industry & Chemical Engineering Quarterly Pub Date : 2021-01-01 DOI:10.2298/ciceq200410035c

Cláudia Cavalcanti Jéssica, João Paulo, L. Stragevitch, de Rodrigues Carvalho, Maria Pimentel Fernanda

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引用次数: 1

Abstract

In this work, the ethanol fuel dehydration process was optimized using the Aspen Plus? simulator and a multivariate statistical technique based on the desirability function. The suitability of the ionic liquids 1-methylimidazolium chloride ([Mim][Cl]), 1-ethyl-3-methylimidazolium chloride ([Emim][Cl]), 1-butyl- -3-methylimidazolium chloride ([Bmim][Cl]) and 1-hexyl-3-methylimidazolium chloride ([Hmim][Cl]), as extractive distillation entrainers, was also evaluated and compared to the conventional solvents, ethylene glycol and cyclohexane. Among the solvents studied, [Mim][Cl] required the lowest energy consumption, about 8% less energy use when compared to the optimized process using ethylene glycol. The multivariate statistical techniques employed were effective in the optimization of the extractive distillation processes as the process energy consumption could be minimized while achieving ethanol purity in agreement with the current specifications as well as obtaining a high solvent recovery. With the desirability approach it was possible to improve the process performance with little or no modification of existing processing plants.

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离子液体乙醇燃料脱水过程的多元统计优化

在这项工作中，利用Aspen Plus?模拟器和基于期望函数的多元统计技术。评价了离子液体1-甲基咪唑氯([Mim][Cl])、1-乙基-3-甲基咪唑氯([Emim][Cl])、1-丁基- -3-甲基咪唑氯([Bmim][Cl])和1-己基-3-甲基咪唑氯([Hmim][Cl])作为萃取精馏夹带剂的适宜性，并与常规溶剂乙二醇和环己烷进行了比较。在所研究的溶剂中，[Mim][Cl]的能耗最低，与使用乙二醇的优化工艺相比，能耗降低约8%。采用多元统计技术对萃取精馏工艺进行优化是有效的，在保证乙醇纯度符合现行标准的前提下，可以最大限度地降低工艺能耗，并获得较高的溶剂回收率。采用可取的方法，可以在很少或不修改现有加工厂的情况下改善工艺性能。

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来源期刊

Chemical Industry & Chemical Engineering Quarterly CHEMISTRY, APPLIED-ENGINEERING, CHEMICAL

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

3.3 months

期刊介绍： The Journal invites contributions to the following two main areas: • Applied Chemistry dealing with the application of basic chemical sciences to industry • Chemical Engineering dealing with the chemical and biochemical conversion of raw materials into different products as well as the design and operation of plants and equipment. The Journal welcomes contributions focused on: Chemical and Biochemical Engineering [...] Process Systems Engineering[...] Environmental Chemical and Process Engineering[...] Materials Synthesis and Processing[...] Food and Bioproducts Processing[...] Process Technology[...]