Mechanism of Dehydration of Ethanol over ^Alumina

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Mechanism of Dehydration of Ethanol over ^Alumina

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Title: Mechanism of Dehydration of Ethanol over ^Alumina
Author: Ebeid, Fikry M. [فكري عبيد]
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 كيثاتيكية ثزع الماء من الايثانول وتكوين الاثير او الايخثيلين باستخدام جاما - الومينا . واتضح من الدراسة ان البيريدين يقلل من تكوين الاكيلين ط ظروف ثلبتة وغيرثبتة ووجد انها تفاعلات من مرتبة الصفر . وتمت دراسة وت!حديد طقة التنشبط لتكوين كل من الاثيروالاثيلين واتضح ان المبكفيكية تعتمد عل مشاركة الالكوممسيد كعامل وسيط للتفاعلين لما حلة الالمير والاثيلين .
URI: http://hdl.handle.net/10576/9969
Date: 1981

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