Catalytic Dehydration of Ethyl Alcohol on Alumina PDF Download
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Author: Herman J. Solomon
Publisher:
ISBN:
Category :
Languages : en
Pages : 264
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Author: Herman J. Solomon
Publisher:
ISBN:
Category :
Languages : en
Pages : 264
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Author: Tharmmanoon Inmanee
Publisher:
ISBN:
Category : Ethylene
Languages : en
Pages : 154
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Book Description
The mixed gamma and chi crystalline phase alumina catalyst prepared by the solvothermal method of the mixed solution (toluene and 1-butanol) was investigated for the effect of calcination temperatures and MoO3 modification. The catalysts were characterized by X-ray diffraction (XRD), N2 physisorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and NH3-tempearture programmed desorption (NH3-TPD). The catalytic activity was tested for ethylene production by dehydration reaction of ethanol in gas phase at atmospheric pressure and temperature between 200°C to 400°C. It was found that the calcination temperature and MoO3 loading have an effect on acidity of the catalysts. The increasing in calcination temperature resulted in decreased acidity while the MoO3 loading on the mixed phase alumina catalyst yielded increased acidity especially medium to strong acid. In this study, the catalytic activity of ethanol dehydration to ethylene apparently depends on the medium to strong acid. The mixed phase alumina catalyst calcined at 600°C (C50-600) gave the highest catalytic activity and the MoO3 modified catalysts promoted dehydrogenation reaction.
Author: Robert Anderson Ross
Publisher:
ISBN:
Category : Alcohol
Languages : en
Pages : 3
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Author: Norman Elliott
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ISBN:
Category : Aluminum oxide
Languages : en
Pages : 0
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The mineral acids are the usual agents for the dehydration of alcohols. The reaction may take place in one of two ways, the removal of one molecule of water from two molecules of alcohol, forming ether, or the removal of a molecule of water from one molecule of alcohol to form the hydrocarbon. Many other agents are used for dehydration purposes. A clue to their nature may be had from the well-known practise of adding sand to the sulphuric acid-alcohol mixture to ensure a steady stream of ethylene. Grigorieff was first to point out the use of alumina as a dehydrating agent for alcohols. The reactions have since been thoroughly studied by Sabatier and others. One result of their work has been the arrangement of catalysts in the form of a chart according to dehydrating power. Thoria comes first in this classification. Alumina is second with 98.5 per cent conversion of ethyl alcohol to ethylene.
Author: Dinwiddie C. Reams
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Haneef Ahmed Bharoocha
Publisher:
ISBN:
Category : Alumina catalysts
Languages : en
Pages : 302
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Author: Chi-Chao Yung
Publisher:
ISBN:
Category : Alcohol
Languages : en
Pages : 3
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Author: John Joseph Stanko
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 44
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Author: Frederick H. H. Valentin
Publisher:
ISBN:
Category :
Languages : en
Pages : 172
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Author: David Eric Rodney Bennett
Publisher:
ISBN:
Category :
Languages : en
Pages :
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