Transesterification of palm oil for biodiesel production using ni / cao supported with alumina beads / Zainal Kifli Abdul Razak ... [et al].

Biodiesel has gained interest among researchers as an alternative fuel to replace fossil fuels due
to its sustainability. Biodiesel can be produced by transesterification of plant oils with methanol
using suitable catalysts. Recently, application of heterogeneous catalyst has attracted
considerable interest in biodiesel production compared to homogenous catalyst due to their
reproducibility. In this study, biodiesel was produced by transesterification of palm oil with
methanol catalyzed by calcium oxide coated on alumina beads and doped with nickel. The
objective of this study is to determine the optimum catalyst loading of the transesterification
process. The catalyst was prepared by heating a mixture of calcium nitrate, nickel(II) nitrate
hexahydrate and alumina beads at 700°C. This temperature was selected after performing a
thermogravimetric analysis on the calcium nitrate. In this study, the highest yield of 24.24%
was obtained from transesterification reaction at optimum conditions of 5 hour reaction time,
1:25 oil-methanol molar ratio and 65°C of reaction temperature with 4 wt% of catalyst loading.
Quantification and identification of biodiesel was done using gas chromatography mass
spectrometry (GCMS)