Oxidative dehydrogenation of propane over V$_{2}$O$_{5}$ and K$_{2}$O-V$_{2}$O$_{5}$ impregnated MgAl$_{2}$O$_{4}$catalysts

Authors

SERKAN NACİ KOÇ
KÜBRA DAYIOĞLU
HASAN ÖZDEMİR

DOI

10.3906/kim-1506-77

Abstract

V$_{2}$O$_{5}$ and K$_{2}$O-V$_{2}$O$_{5}$ impregnated MgAl$_{2}$O$_{4}$ catalysts were prepared and tested for the oxidative dehydrogenation of propane. The as-synthesized catalysts were characterized by using the XRD, BET, NH$_{3}$-TPD, TPR, and XPS methods. The catalytic tests were performed in a fixed bed tubular quartz reactor system between 450 and 550 $^{\circ}$C. It was observed that the conversion of propane increased but hydrocarbon selectivity decreased with increasing temperature over the V$_{2}$O$_{5}$/MgAl$_{2}$O$_{4}$ catalysts. The BET surface area values and surface acidities decreased upon potassium addition for the K-V$_{2}$O$_{5}$/MgAl$_{2}$O$_{4}$ catalysts, which resulted in a drastic drop in the conversion values obtained. The propylene and total hydrocarbon selectivities increased with increasing temperature.

Keywords

Selective oxidation, catalysts, propane, vanadium oxide

First Page

314

Last Page

320

Recommended Citation

KOÇ, SERKAN NACİ; DAYIOĞLU, KÜBRA; and ÖZDEMİR, HASAN (2016) "Oxidative dehydrogenation of propane over V$_{2}$O$_{5}$ and K$_{2}$O-V$_{2}$O$_{5}$ impregnated MgAl$_{2}$O$_{4}$catalysts," Turkish Journal of Chemistry: Vol. 40: No. 2, Article 9. https://doi.org/10.3906/kim-1506-77
Available at: https://journals.tubitak.gov.tr/chem/vol40/iss2/9