The
Malaysian Journal of Analytical Sciences Vol 11 No 1 (2007): 124 – 132
THE EFFECT OF SUPPORT ON THE ACTIVITY AND
SELECTIVITY OF MoVNbTe CATALYST FOR PROPANE AMMOXIDATION REACTION
Anita Ramli*1, Farinaa Md Jamil2 and Suhaina Ibrahim1
1Advanced Materials Research Centre (AMREC), SIRIM
Berhad,
Lot 34, Jalan
Hi-Tech 2/3, Kulim Hi-Tech Park, 09000 Kulim, Kedah, Malaysia.
2School of Chemical Sciences and Food Technology,
Faculty of Science and Technology,
Universiti
Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia.
*Corresponding
author: anita_ramli@sirim.my
Abstract
MoVNbTe
catalyst has been prepared using slurry method for the ammoxidation of propane
to acrylonitrile (ACN). To study the
effect of support on the catalytic activity of this catalyst, 10% (wt/wt) of MoVNbTe
was loaded to silica (SiO2), alumina (Al2O3)
and magnesia (MgO) via incipient wetness impregnation method. All MoVNbTe catalysts
were calcined in air at 350-600oC for a total of 10 h. The textural,
morphological and microstructural characteristics of these catalysts were
determined using scanning electron microscopy, X-ray Diffraction (XRD) and physical adsorption of nitrogen
gas. The catalytic activity of all catalysts was tested using a fixed-bed reactor with online GC at 420oC.
Results show that the physicochemical properties of these catalysts are greatly
influenced by the support used.
Keywords: MoVNbTe
catalyst, effect of support, propane ammoxidation, catalytic activity
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