Design and optimization of an ethanol dehydration process using stochastic methods

被引：70

作者：

Vazquez-Ojeda, Maria ^{[1
]}

Gabriel Segovia-Hernandez, Juan ^{[1
]}

Hernandez, Salvador ^{[1
]}

Hernandez-Aguirre, Arturo ^{[2
]}

Kiss, Anton Alexandru ^{[3
]}

机构：

[1] Univ Guanajuato, Div Ciencias Nat & Exactas, Guanajuato 36050, Gto, Mexico

[2] CIMAT AC, Dept Ciencias Computac, Guanajuato 36240, Gto, Mexico

[3] Univ Amsterdam, NL-1012 WX Amsterdam, Netherlands

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2013年 / 105卷

关键词：

Energy savings; Process optimization; Bioethanol dehydration; Liquid-liquid extraction; Extractive distillation; GLOBAL OPTIMIZATION; DIFFERENTIAL EVOLUTION; BIOETHANOL DEHYDRATION; DISTILLATION; ALGORITHMS; EXTRACTION; TOXICITY; GLYCEROL; SOLVENTS; WATER;

D O I：

10.1016/j.seppur.2012.12.002

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Due to the increasing demand for renewable fuels that are economically attractive, as well as part of the quest for energy alternatives to replace carbon-based fuels, the purification of ethanol plays a key role. This paper presents the design and optimization of a dehydration process for ethanol, using two separation sequences: a conventional arrangement and an alternative arrangement based on liquid-liquid extraction. Both sequences were optimized using a stochastic global optimization algorithm (differential evolution) implemented in Mathworks Matlab and coupled to rigorous process simulations carried out in Aspen Plus. The economic feasibility of the two configurations was studied by changing the ethanol-water composition in the analyzed feed stream. The results clearly demonstrate that significant savings are possible by extraction when the ethanol content in the feed stream exceeds 10% mol (22 wt%). (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：90 / 97

页数：8

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