Kinetics and modeling of o-xylene hydrogenation over Pt/γ-Al2O3 catalyst

A. Kalantar Neyestanaki, H. Backman, P. Mäki-Arvela, J. Wärna, T. Salmi, D. Yu Murzin*

*Korresponderande författare för detta arbete

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

9 Citeringar (Scopus)

Sammanfattning

Gas-phase hydrogenation of o-xylene to cis- and trans-dimethylcyclohexane (DMCH) was studied in a differential microreactor at atmospheric pressure and 430-520K over a Ptγ-Al2O3 catalyst. Rapid reversible deactivation of the freshly reduced catalyst prompted reactivation before every kinetic measurement and extrapolation of the steady-state activity to initial activity. Reaction orders were close to zero for o-xylene and ranged from 1.5 (430 K) to 3.0 (520 K) for hydrogen. A rate maximum for the production of the saturated compounds was observed at about 460 K. The results were in line with previously reported results on xylene hydrogenation on Ni/γ-Al2O3 catalyst.

OriginalspråkEngelska
Sidor (från-till)271-278
Antal sidor8
TidskriftChemical Engineering Journal
Volym91
Utgåva2-3
DOI
StatusPublicerad - 15 mar 2003
MoE-publikationstypA1 Tidskriftsartikel-refererad

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