Kinetic modeling of ethylbenzene dehydrogenation over hydrotalcite catalysts

Luqman Atanda, Nabil Al-Yassir, Sulaiman Al-Khattaf

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

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.
Original languageEnglish (US)
Pages (from-to)1387-1398
Number of pages12
JournalChemical Engineering Journal
Volume171
Issue number3
DOIs
StatePublished - Jul 2011
Externally publishedYes

Fingerprint Dive into the research topics of 'Kinetic modeling of ethylbenzene dehydrogenation over hydrotalcite catalysts'. Together they form a unique fingerprint.

Cite this