Liquid-phase hydrogenation of cinnamaldehyde over IR catalysts : a kinetic modeling study

المؤلفون المشاركون

Abu al-Foul, Suhayr
Mahmud, Sabri
Saymah, Riyad Akram
Hammoudeh, Ayman

المصدر

Jordan Journal of Chemistry

العدد

المجلد 5، العدد 1 (31 مارس/آذار 2010)، ص ص. 47-58، 12ص.

الناشر

جامعة اليرموك عمادة البحث العلمي و الدراسات العليا

تاريخ النشر

2010-03-31

دولة النشر

الأردن

عدد الصفحات

12

التخصصات الرئيسية

الكيمياء

الملخص EN

The liquid phase hydrogenation of cinnamaldehyde in toluene over alumina supported Ir catalysts was investigated under mild conditions (cinnamaldehyde concentration = 0.015 M–0.060 M, hydrogen pressure = 3-7 bar and T = 55- 95ºC).

The Ir-particle size was determined by XRD to be ~6 nm with adispersion of 28-35% and in good agreement with that determined by means of hydrogen chemisorption measurements.

Under above reaction conditions, the order of reaction was experimentally found to be-0.5 with respect to cinnamaldehyde and 1 with respect to hydrogen.

The apparent activation energy was practically zero.

The kinetic data could be modeled based on the assumption that the Langmuir-Hinshelwood surface reaction between competitively adsorbed cinnamaldehyde and hydrogen is the rate determining step.

The adsorption equilibrium constant of cinnamaldehyde, KA, and the modified surface rate constant, ksKH, were calculated to be 87 M-1 and 5×10-4 M min-1 bar-1 gcat-1, respectively.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Abu al-Foul, Suhayr& Mahmud, Sabri& Saymah, Riyad Akram& Hammoudeh, Ayman. 2010. Liquid-phase hydrogenation of cinnamaldehyde over IR catalysts : a kinetic modeling study. Jordan Journal of Chemistry،Vol. 5, no. 1, pp.47-58.
https://search.emarefa.net/detail/BIM-266285

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Abu al-Foul, Suhayr…[et al.]. Liquid-phase hydrogenation of cinnamaldehyde over IR catalysts : a kinetic modeling study. Jordan Journal of Chemistry Vol. 5, no. 1 (Mar. 2010), pp.47-58.
https://search.emarefa.net/detail/BIM-266285

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Abu al-Foul, Suhayr& Mahmud, Sabri& Saymah, Riyad Akram& Hammoudeh, Ayman. Liquid-phase hydrogenation of cinnamaldehyde over IR catalysts : a kinetic modeling study. Jordan Journal of Chemistry. 2010. Vol. 5, no. 1, pp.47-58.
https://search.emarefa.net/detail/BIM-266285

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references : p. 58

رقم السجل

BIM-266285