Characterization of various zinc oxide catalysts and their activity in the dehydration-dehydrogenation of isobutanol

Mono and bifunctional zinc oxide catalysts were prepared to study their activity in the catalytic conversion of isobutanol. The prepared catalysts were characterized by X-ray diffraction analysis and nitrogen adsorption measurements. The conversion of isobutanol was taken as a model reaction to meas...

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Main Authors: Saad Lamia, Riad Mary
Format: Article
Language:English
Published: Serbian Chemical Society 2008-01-01
Series:Journal of the Serbian Chemical Society
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/0352-5139/2008/0352-51390810997S.pdf
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spelling doaj-3ea69fe879684de38aa8d92722023c322020-12-30T07:55:31ZengSerbian Chemical Society Journal of the Serbian Chemical Society0352-51391820-74212008-01-017310997100910.2298/JSC0810997S0352-51390810997SCharacterization of various zinc oxide catalysts and their activity in the dehydration-dehydrogenation of isobutanolSaad Lamia0Riad Mary1Refining Division - Egyptian Petroleum Research Institute, Nasr City, Cairo, EgyptRefining Division - Egyptian Petroleum Research Institute, Nasr City, Cairo, EgyptMono and bifunctional zinc oxide catalysts were prepared to study their activity in the catalytic conversion of isobutanol. The prepared catalysts were characterized by X-ray diffraction analysis and nitrogen adsorption measurements. The conversion of isobutanol was taken as a model reaction to measure the catalytic activity of the prepared oxide catalysts. The overall conversion yield of competitive dehydration-dehydrogenation reactions of isobutanol was found to be higher over the binary oxide catalysts than over the single oxide one at all reaction temperature within the range 250-400°C. The binary oxide catalysts were more selective for isobutene, as the predominant dehydrated product. The single oxide catalyst exhibited higher selectivity towards isobutyraldehyde as the dehydrogenated product, and the selectivity increased with increasing reaction temperature.http://www.doiserbia.nb.rs/img/doi/0352-5139/2008/0352-51390810997S.pdfmetal oxidesacid-base catalysisisobutanol conversion
collection DOAJ
language English
format Article
sources DOAJ
author Saad Lamia
Riad Mary
spellingShingle Saad Lamia
Riad Mary
Characterization of various zinc oxide catalysts and their activity in the dehydration-dehydrogenation of isobutanol
Journal of the Serbian Chemical Society
metal oxides
acid-base catalysis
isobutanol conversion
author_facet Saad Lamia
Riad Mary
author_sort Saad Lamia
title Characterization of various zinc oxide catalysts and their activity in the dehydration-dehydrogenation of isobutanol
title_short Characterization of various zinc oxide catalysts and their activity in the dehydration-dehydrogenation of isobutanol
title_full Characterization of various zinc oxide catalysts and their activity in the dehydration-dehydrogenation of isobutanol
title_fullStr Characterization of various zinc oxide catalysts and their activity in the dehydration-dehydrogenation of isobutanol
title_full_unstemmed Characterization of various zinc oxide catalysts and their activity in the dehydration-dehydrogenation of isobutanol
title_sort characterization of various zinc oxide catalysts and their activity in the dehydration-dehydrogenation of isobutanol
publisher Serbian Chemical Society
series Journal of the Serbian Chemical Society
issn 0352-5139
1820-7421
publishDate 2008-01-01
description Mono and bifunctional zinc oxide catalysts were prepared to study their activity in the catalytic conversion of isobutanol. The prepared catalysts were characterized by X-ray diffraction analysis and nitrogen adsorption measurements. The conversion of isobutanol was taken as a model reaction to measure the catalytic activity of the prepared oxide catalysts. The overall conversion yield of competitive dehydration-dehydrogenation reactions of isobutanol was found to be higher over the binary oxide catalysts than over the single oxide one at all reaction temperature within the range 250-400°C. The binary oxide catalysts were more selective for isobutene, as the predominant dehydrated product. The single oxide catalyst exhibited higher selectivity towards isobutyraldehyde as the dehydrogenated product, and the selectivity increased with increasing reaction temperature.
topic metal oxides
acid-base catalysis
isobutanol conversion
url http://www.doiserbia.nb.rs/img/doi/0352-5139/2008/0352-51390810997S.pdf
work_keys_str_mv AT saadlamia characterizationofvariouszincoxidecatalystsandtheiractivityinthedehydrationdehydrogenationofisobutanol
AT riadmary characterizationofvariouszincoxidecatalystsandtheiractivityinthedehydrationdehydrogenationofisobutanol
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