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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Serbian Chemical Society
2008-01-01
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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 |
_version_ |
1724365857195294720 |