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Kinetic modeling, thermodynamic, and mass-transfer studies of gas-phase glycerol dehydration to acrolein over supported silicotungstic acid catalyst

The kinetics of gas-phase glycerol dehydration in a packed-bed reactor over a highly active and stable supported silicotungstic acid catalyst with zirconium oxide and nanosized aluminum oxide (30HZ-20A) was investigated. The kinetic study is based on the optimal reaction conditions determined by res...

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Main Authors: Kiakalaieh, Talebian, Saidina Amin, Nor Aishah
Format: Article
Published: American Chemical Society 2015
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TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/58462/
http://dx.doi.org/10.1021/acs.iecr.5b02172
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spelling my.utm.584622017-02-01T01:40:38Z http://eprints.utm.my/id/eprint/58462/ Kinetic modeling, thermodynamic, and mass-transfer studies of gas-phase glycerol dehydration to acrolein over supported silicotungstic acid catalyst Kiakalaieh, Talebian Saidina Amin, Nor Aishah TP Chemical technology The kinetics of gas-phase glycerol dehydration in a packed-bed reactor over a highly active and stable supported silicotungstic acid catalyst with zirconium oxide and nanosized aluminum oxide (30HZ-20A) was investigated. The kinetic study is based on the optimal reaction conditions determined by response surface methodology. The reaction rate followed first-order kinetics with the activation energy and frequency factor, E = 27.5 kJ/mol and A = 5.35 × 105 s-1, respectively. Based on thermodynamic analysis, the values of ΔH° and ΔS° of the endothermic reaction were 14.70 and 0.09 kJ/(mol K), respectively, and ΔG° =-12.12 kJ/mol. The mass-transfer analysis revealed the pellet sizes of dp < 1 µm proceeded under reaction-limiting conditions. Experimental results confirmed high efficacy of the tested catalyst due to unity effectiveness factor and very low Thiele modulus American Chemical Society 2015-08 Article PeerReviewed Kiakalaieh, Talebian and Saidina Amin, Nor Aishah (2015) Kinetic modeling, thermodynamic, and mass-transfer studies of gas-phase glycerol dehydration to acrolein over supported silicotungstic acid catalyst. Industrial & Engineering Chemistry Research, 54 (33). pp. 8113-8121. ISSN 0886-7798 http://dx.doi.org/10.1021/acs.iecr.5b02172 DOI:10.1021/acs.iecr.5b02172
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Kiakalaieh, Talebian
Saidina Amin, Nor Aishah
Kinetic modeling, thermodynamic, and mass-transfer studies of gas-phase glycerol dehydration to acrolein over supported silicotungstic acid catalyst
description The kinetics of gas-phase glycerol dehydration in a packed-bed reactor over a highly active and stable supported silicotungstic acid catalyst with zirconium oxide and nanosized aluminum oxide (30HZ-20A) was investigated. The kinetic study is based on the optimal reaction conditions determined by response surface methodology. The reaction rate followed first-order kinetics with the activation energy and frequency factor, E = 27.5 kJ/mol and A = 5.35 × 105 s-1, respectively. Based on thermodynamic analysis, the values of ΔH° and ΔS° of the endothermic reaction were 14.70 and 0.09 kJ/(mol K), respectively, and ΔG° =-12.12 kJ/mol. The mass-transfer analysis revealed the pellet sizes of dp < 1 µm proceeded under reaction-limiting conditions. Experimental results confirmed high efficacy of the tested catalyst due to unity effectiveness factor and very low Thiele modulus
format Article
author Kiakalaieh, Talebian
Saidina Amin, Nor Aishah
author_facet Kiakalaieh, Talebian
Saidina Amin, Nor Aishah
author_sort Kiakalaieh, Talebian
title Kinetic modeling, thermodynamic, and mass-transfer studies of gas-phase glycerol dehydration to acrolein over supported silicotungstic acid catalyst
title_short Kinetic modeling, thermodynamic, and mass-transfer studies of gas-phase glycerol dehydration to acrolein over supported silicotungstic acid catalyst
title_full Kinetic modeling, thermodynamic, and mass-transfer studies of gas-phase glycerol dehydration to acrolein over supported silicotungstic acid catalyst
title_fullStr Kinetic modeling, thermodynamic, and mass-transfer studies of gas-phase glycerol dehydration to acrolein over supported silicotungstic acid catalyst
title_full_unstemmed Kinetic modeling, thermodynamic, and mass-transfer studies of gas-phase glycerol dehydration to acrolein over supported silicotungstic acid catalyst
title_sort kinetic modeling, thermodynamic, and mass-transfer studies of gas-phase glycerol dehydration to acrolein over supported silicotungstic acid catalyst
publisher American Chemical Society
publishDate 2015
url http://eprints.utm.my/id/eprint/58462/
http://dx.doi.org/10.1021/acs.iecr.5b02172
_version_ 1643654284340887552
score 13.211869

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