Methods:
All the experiments were carried out at least three times in order to determine the variability of the
results and to assess the experimental errors. In this way, the arithmetical averages were calculated for all
the results which had an experimental error of less than 0.5%. Experiments was repeated at various
conditions such as, catalyst concentration (1.4 – 3.25 wt.% of Oil), reaction time (1-4 min), methanol/oil
molar ratio (4:1-10:1) were studied.