稀水溶液中乙醇的分离纯化技术综述

IF 4.9 3区工程技术 Q1 ENGINEERING, CHEMICAL

Reviews in Chemical Engineering Pub Date : 2021-08-18 DOI:10.1515/revce-2020-0114

Pooja P. Sanap, Y. Mahajan

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引用次数: 6

摘要

摘要乙醇被视为一种燃料添加剂，甚至是一种替代燃料。发酵用于产生稀释液（99.5质量%）。综述了从稀乙醇到燃料乙醇的浓缩技术。因此，提取；蒸馏；膜的使用；详细讨论了吸附法和其它一些方法。对于每种技术，入口和出口浓度；指出了优缺点和今后的工作范围。讨论了混合分离。除了技术可行性外，还讨论了这些技术的经济可行性。还简要讨论了当前的工业实践。

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Review on technologies to separate and purify ethyl alcohol from dilute aqueous solutions

Abstract Ethyl alcohol (ethanol) is viewed upon as a fuel additive or even as an alternative fuel. Fermentation is used to produce dilute (<20 mass%) ethanol. This is needed to be concentrated to almost anhydrous, fuel grade ethanol (>99.5 mass%). The technologies used for concentration from dilute grade to fuel grade ethanol are summarized in this review. Thus, extraction; distillation; use of membranes; adsorption and some miscellaneous methods are discussed in detail. For each technique, the inlet and outlet concentrations; merits and demerits and scope for future work are indicated. Hybrid separations are discussed. In addition to technical feasibility, economic viability of the techniques is also discussed. A brief discussion on current industrial practice is also presented.

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来源期刊

Reviews in Chemical Engineering 工程技术-工程：化工

CiteScore

12.30

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： Reviews in Chemical Engineering publishes authoritative review articles on all aspects of the broad field of chemical engineering and applied chemistry. Its aim is to develop new insights and understanding and to promote interest and research activity in chemical engineering, as well as the application of new developments in these areas. The bimonthly journal publishes peer-reviewed articles by leading chemical engineers, applied scientists and mathematicians. The broad interest today in solutions through chemistry to some of the world’s most challenging problems ensures that Reviews in Chemical Engineering will play a significant role in the growth of the field as a whole.