It was not possible to observe an increase on ester conversion
for 20 g/L of A15, due to the high water formation rate
compared to the stripping one because catalyst concentration is
high. Total and water fluxes were 13.4 and 8.9 mol/(m2 h),
respectively, with enrichment factor of 9.7. These parameters
are in the same range of the ones obtained for membrane
characterization