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Silica Derived Membranes for Dehydration of Aqueous Ethanol [PDF]

, 2023
Molecular sieving silica (MSS) membranes are novel amorphous microporous membranes with well defined pore structures. Current industrial applications of MSS membranes were used for recovery or purification of hydrogen gases. The superior separation performance of silica based membranes had raised the interest even further in applications of dehydration
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Ethanol dehydration by extractive distillation

Journal of Chemical Technology & Biotechnology, 1992
AbstractExperiments and process simulation enable favourable operating conditions to be determined for the extractive distillation of ethanol—water, with ethylene glycol as a solvent. The solvent molar rate to feed molar rate ratio S/F = 0·6 and the reflux ratio R = 0·5 were determined in order to achieve at least 99·5 mole % purity of ethanol.
Antonio Meirelles, Siegfried Weiss, Herbert Herfurth   +2 more
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Dehydration of ethanol on filtrol and modified filtrols

Materials Chemistry and Physics, 1986
Abstract The commercially available clay cracking catalyst filtrol (SR grade 63) and its heat treated forms have been characterized by chemical, spectral, X-ray and surface measurement methods. The decrease in pore volume of filtrol during heat treatment is accounted for by the phase transition in the system. The catalytic activity of filtrol and its
S. Rajadurai, T.M. Geetha
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Renewable energy source—Dehydrated ethanol

Chemical Engineering Journal, 2008
Abstract Ethanol produced from renewable energy sources—biomass, is the most promising future biofuel. In the article, a pervaporation membrane technique for ethanol dehydration is presented. Experimental results and semi-empirical and empirical models calculated on their basis are discussed.
Wladyslaw Kaminski, Joanna Marszalek, Agnieszka Ciolkowska   +2 more
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Electronic mechanism of catalytic dehydration of ethanol

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1983
1. On the basis of an analysis of the distribution of the deforming force among the atoms and bonds during electronic transitions it was shown that the dehydration of ethanol is promoted by capture of an electron from the catalyst by the adsorbed molecule. 2.
S. G. Gagarin, R. Z. Zakharyan, Yu. A. Kolbanovskii   +2 more
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Optimization of hybrid ethanol dehydration systems

Chemical Engineering and Processing: Process Intensification, 2002
Abstract Hybrid ethanol dehydration systems are modeled and optimized using MINLP. The systems consist of a distillation column for approaching the ethanol/water azeotrope and of a pervaporation unit for producing pure ethanol. The optimal design and operating parameters including number of trays, feed location, reflux ratio, number of membrane ...
Z. Szitkai, Z. Lelkes, E. Rev, Z. Fonyo
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Heat Integrated Ethanol Dehydration Flowsheets

Separation Science and Technology, 1995
Abstract A theoretical evaluation of heat-integrated heterogeneous-azeotropic ethanol-water distillation flowsheets is presented. Simulations of two column flowsheets using several different hydrocarbon entrainers reveal a region of potential heat integration and substantial reduction in operating energy.
L. S. Hutahaean, W-H. Shen, V. Van Brunt
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Application of microreactor technology to dehydration of bio-ethanol

Chemical Engineering Science, 2021
Abstract Dehydration and etherification of bio-ethanol was studied in a microreactor using γ-alumina, H-Beta-38 and Sn-Beta-38 as catalysts. An extensive series of kinetic experiments was carried out in the microreactor device operating at ambient pressure and temperatures 225–325 °C.
Murzin Dmitry, Wärnå Johan, Peurla Markus, Aho Atte, Eränen Kari, Kumar Narendra, Suerz Rossana, Salmi Tapio, Russo Vincenzo   +8 more
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ChemInform Abstract: DEHYDRATE ETHANOL TO ETHYLENE

Chemischer Informationsdienst, 1978
AbstractEin durch Fermentierung von Kohlenhydraten gewonnenes Ethanol kann für erdölarme Entwicklungsländer eine Altemative zur Ethylengewinnung darstellen.
U. TSAO, J. W. REILLY
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Experimental Study on the Adsorption of Water and Ethanol by Cornmeal for Ethanol Dehydration

Industrial & Engineering Chemistry Research, 2006
A fixed-bed apparatus was designed to investigate the gas adsorption capacity and selectivity of cornmeal for ethanol dehydration. The experiments were performed at near atmospheric pressure and at different temperatures and different ethanol vapor concentrations. Both equilibrium and kinetic adsorptions at the breakthrough point were conducted.
Hua Chang, Xi-Gang Yuan, Hua Tian, Ai-Wu Zeng   +3 more
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