It may be observed that after 100 min the reaction carried out using zeolite3A to remove the water produced allowed conversions above 99% mol, while for the system without adsorption conversion values below 80% mol were observed.
In fact, the removal of water formed in the esterification provides a significant increase in
conversions, since water shifts the equilibrium of the reaction in the opposite direction (hydrolysis) by reducing the amount of mono-alkyl ester (biodiesel) formed , in addition to deactivating the catalyst acid.
In both cases,with or without adsorption,we may observe that the conversion values will increase steadily during the first 40 min of reaction and,after that, the values of conversion become approximately constant,showing that the reaction has practically
reached equilibrium.
It may be observed that after 100 min the reaction carried out using zeolite3A to remove the water produced allowed conversions above 99% mol, while for the system without adsorption conversion values below 80% mol were observed.
In fact, the removal of water formed in the esterification provides a significant increase in
conversions, since water shifts the equilibrium of the reaction in the opposite direction (hydrolysis) by reducing the amount of mono-alkyl ester (biodiesel) formed , in addition to deactivating the catalyst acid.
In both cases,with or without adsorption,we may observe that the conversion values will increase steadily during the first 40 min of reaction and,after that, the values of conversion become approximately constant,showing that the reaction has practically
reached equilibrium.
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