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Mechanism of Dehydration of Ethanol over Alumina

Authors: Ebeid, Fikry M. فكري عبيد;

Mechanism of Dehydration of Ethanol over Alumina

Abstract

The dehydration reaction of ethanol to ether and ethylene was kinetically investigated in a flow system using •y-alumina. Pyridine was found to inhibit the formation of ethylene and ether. The rate of ethylene formation was investigated under steady state and non-steady state conditions and it was found to be zero order. The bimolecular ether formation is described by a first order equation of the Langmuir-Hinshelwood type. The activation energies for ethylene and ether formation were determined. A mechanism based on the participation of a common alkoxide intermediate for both reactions is proposed. تضمن البحث دراسة كيناتيكية نزع الماء من الايثانول وتكوين الاثير او الايثيلين باستخدام جاما - الومينا . واتضح من الدراسة ان البيريدين يقلل من تكوين الاثيلين في ظروف ثابتة وغير ثابتة ووجد انها تفاعلات من مرتبة الصفر . وتمت دراسة وتحديد طاقة التنشيط لتكوين كل من الاثير والاثيلين واتضح ان الميكانيكية تعتمد عل مشاركة الالكوكسيد كعامل وسيط للتفاعلين في حالة الاثير والاثيلين .

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Keywords

Chemistry, الكيمياء

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green