Abstract
MgO/Al2O3 catalysts with 10 and 20 wt.% MgO loadings have been prepared by incipient
wetness impregnation method. A low-surface area alumina with small pore sizes was used as catalyst
support to stabilise most of the MgO particles on the external surface area of the support. The
prepared catalysts were subsequently tested in the conversion of a waste vegetable oil to biodiesel.
The waste vegetable oil conversion was found to increase with the increase in reaction temperature,
reaction time and MgO loading in the catalyst.