Liquid-phase hydrogenation of cinnamaldehyde over IR catalysts : a kinetic modeling study
Joint Authors
Abu al-Foul, Suhayr
Mahmud, Sabri
Saymah, Riyad Akram
Hammoudeh, Ayman
Source
Issue
Vol. 5, Issue 1 (31 Mar. 2010), pp.47-58, 12 p.
Publisher
Yarmouk University Deanship of Research and Graduate Studies
Publication Date
2010-03-31
Country of Publication
Jordan
No. of Pages
12
Main Subjects
Abstract 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.
American Psychological Association (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
Modern Language Association (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
American Medical Association (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
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 58
Record ID
BIM-266285