Journal ArticleDOI
Bioethanol dehydration: State of the art
A. K. Frolkova,V. M. Raeva +1 more
TLDR
A survey of the present-day methods of dehydration of ethanol resulting from fermentation processes is given in this article, where the existing separation techniques for water-ethanol mixtures of various compositions are compared, and the conditions under which each particular technique is preferable are formulated.Abstract:
This article is a survey of the present-day methods of dehydration of ethanol resulting from fermentation processes. The existing separation techniques for water-ethanol mixtures of various compositions are compared, and the conditions under which each particular technique is preferable are formulated.read more
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Journal ArticleDOI
Gas Fermentation—A Flexible Platform for Commercial Scale Production of Low-Carbon-Fuels and Chemicals from Waste and Renewable Feedstocks
Fungmin Liew,Michael Martin,Ryan Tappel,Bjorn Daniel Heijstra,Christophe Daniel Mihalcea,Michael Köpke +5 more
TL;DR: This review gives an overview of the gas fermentation process, focusing specifically on anaerobic acetogens, and applications of synthetic biology and coupling gas fermentation to additional processes are discussed in detail.
Journal ArticleDOI
Enhanced bioethanol dehydration by extractive and azeotropic distillation in dividing-wall columns
TL;DR: In this article, the authors proposed novel distillation technologies for enhanced bioethanol dehydration, by extending the use of dividing-wall columns (DWC) to energy efficient extractive distillation (ED) and azeotropic distillation(AD).
Journal ArticleDOI
Distillation technology - still young and full of breakthrough opportunities
TL;DR: A broad overview of the recent developments in distillation based on process intensification principles, for example heat pump assisted distillation (e.g. vapor compression or compression-resorption), heat-integrated distillation column, membrane distillation, HiGee distillation and cyclic distillation are discussed in the context of changes towards a more energy efficient and sustainable chemical process industry.
Journal ArticleDOI
Innovative single step bioethanol dehydration in an extractive dividing-wall column
TL;DR: In this paper, an extractive dividing-wall column (E-DWC) was proposed to concentrate and dehydrate bioethanol in a single step, by integrating all units of the conventional sequence into only one distillation column.
Journal ArticleDOI
Novel Heat-Pump-Assisted Extractive Distillation for Bioethanol Purification
TL;DR: In this article, a heat-pump-assisted extractive distillation process taking place in a dividing-wall column (DWC) is proposed, where the ethanol top vapor stream of the extractive DWC is recompressed from atmospheric pressure to over 31 bar (thus to a higher temperature) and used to drive the side reboiler of the DWC.
References
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Journal ArticleDOI
Trends in biotechnological production of fuel ethanol from different feedstocks.
TL;DR: The different technologies for producing fuel ethanol from sucrose-containing feedstocks (mainly sugar cane, starchy materials and lignocellulosic biomass) are described along with the major research trends for improving them.
Journal ArticleDOI
Fuel ethanol production: process design trends and integration opportunities.
TL;DR: The key role that process design plays during the development of cost-effective technologies is recognized through the analysis of major trends in process synthesis, modeling, simulation and optimization related to ethanol production.
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A review of separation technologies in current and future biorefineries
TL;DR: A critical review of separation methods and technologies related to biorefining including pre-extraction of hemicellulose and other value-added chemicals, detoxification of fermentation hydrolyzates, and ethanol product separation and dehydration is presented in this article.
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Membrane separation process—Pervaporation through zeolite membrane
TL;DR: In this article, the role of zeolite membrane and its progress in the pervaporation process is discussed and compared, as well as the fundamental aspects of pervapore over different types of membranes are reviewed and compared.
Journal ArticleDOI
Modeling Liquid−Liquid Equilibrium of Ionic Liquid Systems with NRTL, Electrolyte-NRTL, and UNIQUAC
TL;DR: In this paper, three different excess Gibbs free energy models are evaluated to predict ternary liquid-phase behavior in systems that contain ionic liquids (ILs) from binary measurements.