Kinetic Reaction of Tert-Butyl Glucoside Esterification with Oleic Acid using p-TSA Catalyst and Co-solvent tert-Butanol

Abstract: Surfactants produced from oil and natural gas derivatives can cause environmental pollution because they produce waste that is difficult to degrade. So, it is necessary to develop surfactant production which does not pollute the environment, for example, Alkyl poly glucosides, here a new type of alkyl poly glucoside surfactant will be synthesized by reacting Tert-butyl Glucoside (TBG) with oleic acid to form Tert-butyl Oleil Glucoside (TBOG). The aim in this research is to determine the exact reaction kinetics model and the kinetics parameters of the Tert-butyl Glucoside (TBG) esterification reaction with oleic acid using p-TSA as catalyst and modification of the addition of organic co-solvent. The variables studied were the mole ratio (TBG: oleic acid), temperature, and % catalyst. From observations, the best conditions were obtained at a mole ratio of 1: 4, the temperature of 90oC and 2% catalyst. The best yield obtained was 91.49%. Product quality was characterized by FTIR and GC-MS spectroscopy. The kinetics of esterification reaction of TBG with oleic acid using catalyst p-TSA and modification of the addition of organic co-solvent was carried out at 75, 90, 92oC. The reaction kinetics parameters for the kinetics model with co-solvent are A1o = 6,103 L / mol.s; A2o = 1,3.101 L / mol.s; -Ea1 = -2.103,44 J / mol; -Ea2 = -1.446,63 J / mol. The reaction kinetics parameters for the kinetics model without the addition of co-solvent are A1o = 3,3.101 L / mol.s; A2o = 1.5 L / mol.s; -Ea1 = 3.683,93 J / mol; -Ea2 = -4.770,57 J / mol.

Keywords: Esterification, Kinetics Parameter, TBOG Surfactant, Co-Solvent