TY - JOUR
T1 - Kinetic modeling of ethylbenzene dehydrogenation over hydrotalcite catalysts
AU - Atanda, Luqman
AU - Al-Yassir, Nabil
AU - Al-Khattaf, Sulaiman
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): K-C1-019-12
Acknowledgements: This publication was based on work supported in part by Award No. K-C1-019-12 made by King Abdullah University of Science and Technology (KAUST). In addition, the authors express their appreciation for the financial support from the Centre for Research Excellence in Petroleum Refining and Petrochemicals at King Fahd University of Petroleum & Minerals. The authors also acknowledge the contribution of Prof. Emeritus K. Takehira (Hiroshima University, Higashi-Hiroshima, Japan). Mr. Mariano Gica is also acknowledged for his help during the experimental work.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.
PY - 2011/7
Y1 - 2011/7
N2 - Kinetics of ethylbenzene dehydrogenation to styrene was investigated over a series of quaternary mixed oxides of Mg3Fe0.25Me0.25Al0.5 (Me=Co, Mn and Ni) catalysts prepared by calcination of hydrotalcite-like compounds and compared with commercial catalyst. The study was carried out in the absence of steam using a riser simulator at 400, 450, 500 and 550°C for reaction times of 5, 10, 15 and 20s. Mg3Fe0.25Mn0.25Al0.5 afforded the highest ethylbenzene conversion of 19.7% at 550°C. Kinetic parameters for the dehydrogenation process were determined using the catalyst deactivation function based on reactant conversion model. The apparent activation energies for styrene production were found to decrease as follows: E1-Ni>E1-Co>E1-Mn. © 2011 Elsevier B.V.
AB - Kinetics of ethylbenzene dehydrogenation to styrene was investigated over a series of quaternary mixed oxides of Mg3Fe0.25Me0.25Al0.5 (Me=Co, Mn and Ni) catalysts prepared by calcination of hydrotalcite-like compounds and compared with commercial catalyst. The study was carried out in the absence of steam using a riser simulator at 400, 450, 500 and 550°C for reaction times of 5, 10, 15 and 20s. Mg3Fe0.25Mn0.25Al0.5 afforded the highest ethylbenzene conversion of 19.7% at 550°C. Kinetic parameters for the dehydrogenation process were determined using the catalyst deactivation function based on reactant conversion model. The apparent activation energies for styrene production were found to decrease as follows: E1-Ni>E1-Co>E1-Mn. © 2011 Elsevier B.V.
UR - http://hdl.handle.net/10754/600107
UR - https://linkinghub.elsevier.com/retrieve/pii/S1385894711006140
UR - http://www.scopus.com/inward/record.url?scp=79960013284&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2011.05.053
DO - 10.1016/j.cej.2011.05.053
M3 - Article
SN - 1385-8947
VL - 171
SP - 1387
EP - 1398
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
IS - 3
ER -