Membranes for the dehydration of solvents by pervaporation

Chapman, Peter D.; Oliveira, Teresa A.C.; Livingston, Andrew G.; Li, K.

doi:10.1016/j.memsci.2008.02.061

Cited by 586 publications

(328 citation statements)

References 146 publications

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“…The discussion is limited to ''hybrid'' organosilica membranes, i.e., 3D bonded networks containing :Si-O-Si: and :Si-RSi: groups with homogeneous dispersion of both types of bonds on the atomic scale. For a review of the sol-gel processing of amorphous microporous silica and organically modified silica membranes, the reader is referred to other sources [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Structure–property tuning in hydrothermally stable sol–gel-processed hybrid organosilica molecular sieving membranes

Elshof

Dral

2015

J Sol-Gel Sci Technol

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Supported microporous organosilica membranes made from bridged silsesquioxane precursors by an acid-catalyzed sol-gel process have demonstrated a remarkable hydrothermal stability in pervaporation and gas separation processes, making them the first generation of ceramic molecular sieving membranes with sufficient performance under industrially relevant conditions. The commercial availability of various a,x-bis(trialkoxysilyl)alkane and 1,4-bis(trialkoxysilyl)benzene precursors facilitates the tailoring of membrane properties like pore size and surface chemistry via the choice of precursor(s) and process variables. Here, we describe the engineering of sols for making supported microporous thin films, discuss the thermal and hydrothermal stability of microporous organosilicas and give a short overview of the developments and applications of these membranes in liquid and gas separation processes since their first report in 2008.Graphical Abstract

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Section: Introductionmentioning

confidence: 99%

Structure–property tuning in hydrothermally stable sol–gel-processed hybrid organosilica molecular sieving membranes

Elshof

Dral

2015

J Sol-Gel Sci Technol

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“…Particularly, ethanol/water 43 and isopropanol/water mixtures have achieved a suitable development to be applied commercially. Large number of 44 publications and patents can be found in literature related to ethanol/water (Chapman et al, 2008) and 45 isopropanol/water (Kuila and Ray, 2013) separation, whereas the methanol/water is scarce (Pang et al, 2010) 46 opening up an interesting research field.…”

mentioning

confidence: 99%

Sorption and pervaporation of methanol/water mixtures with poly(3-hydroxybutyrate) membranes

Villegas

Vidaurre

Gottifredi

2015

Chemical Engineering Research and Design

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“…The membrane is a barrier between the two phases, the liquid phase -feed, and the vapour phase -permeate. There are different types of membranes used for pervaporation including polymeric, ceramic and composite membranes (Chapman et al, 2008;Liu et al, 2007;Shao et al, 2007). However, due to an excellent chemical resistance and thermal stability, ceramic membranes are of the interest in recent years.…”

Section: Fig 1 Chemistry Of Diethyl Tartrate Synthesismentioning

confidence: 99%

Pervaporation applied for dewatering of reaction mixture during esterification

Krasiński

Wierzba

Grudzień

et al. 2016

Chemical and Process Engineering

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In this work the esterification of diethyl tartrate was studied. The research was focused on the enhancement of reversible reaction yield, which is accomplished by dewatering of the reaction mixture. The removal of water shifts the equilibrium towards the main product. Pervaporation was applied for this purpose, and results were compared to distillation. The advantages and limitations of both processes are discussed. The experimental part consists of dewatering of mixture after the reaction had reached the equilibrium, and was subsequently fed to the test rig equipped with a single zeolite membrane purchased from Pervatech B.V. Results show a significant conversion increase as a result of water removal by pervaporation. Compared to distillation no addition of organics is necessary to efficiently remove water above the azeotrope. Nevertheless, some limitations and issues which call for optimisation are pointed out. A simple numerical model is proposed to support design and sizing of the pervaporation system. Various modes of integrated system operation are also briefly discussed.

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Membranes for the dehydration of solvents by pervaporation

Cited by 586 publications

References 146 publications

Structure–property tuning in hydrothermally stable sol–gel-processed hybrid organosilica molecular sieving membranes

Structure–property tuning in hydrothermally stable sol–gel-processed hybrid organosilica molecular sieving membranes

Sorption and pervaporation of methanol/water mixtures with poly(3-hydroxybutyrate) membranes

Pervaporation applied for dewatering of reaction mixture during esterification

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