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Effect of adsorption–desorption of reaction mixture components on ethyl-tert-butyl ether synthesis over commercial sulfonic acid resins

Paper ID Volume ID Publish Year Pages File Format Full-Text
52204 46866 2011 4 PDF Available
Title
Effect of adsorption–desorption of reaction mixture components on ethyl-tert-butyl ether synthesis over commercial sulfonic acid resins
Abstract

Effect of adsorption properties of commercial sulfonic acid resins of different morphology on the trend of temperature dependence of ethyl-tert-butyl ether (ETBE) yield in a reaction between ethanol and iso-butylene at elevated pressure studied. It has been shown that porous structure of a catalyst affects significantly the adsorption–desorption dynamics of reaction components. Consequently, at low temperatures the yield of ETBE is limited by adsorption–desorption dynamics, whereas at high temperatures it is restricted by thermodynamics. That results in the appearance of a maximum on the experimental dependence of the ETBE yield on temperature.

Graphical AbstractThe volcano-shaped temperature dependence of the ETBE yield for the ethanol with iso-butylene interaction at elevated pressure over sulfonic acid resins is determined by interplay of two factors. At low temperatures it is defined by catalyst morphology that governs a dynamics of ethanol adsorption–desorption, whereas at high temperatures it is limited by reaction through ETBE equilibrium yield.Figure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights► Catalytic and adsorption properties of gel-type and macroporous sulfonic resins in ETBE synthesis at elevated pressure are studied. ► ETBE yield is determined by dynamics of ethanol adsorption-desorption and thermodynamics of reaction. ► Morphology of sulfonated resins affects their catalytic performance owing to changing ethanol desorption dynamics.

Keywords
Ethyl-tert-butyl ether; iso-butylene; Ethanol; Acidity; Adsorption–desorption; Catalysis; Quartz crystal microbalance
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Effect of adsorption–desorption of reaction mixture components on ethyl-tert-butyl ether synthesis over commercial sulfonic acid resins
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 12, 1 July 2011, Pages 1142–1145
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
Price after discount Only $4.95
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