Kinetic study of catalytic esterification of acrylic acid with butanol catalyzed by different ion exchange resins

Kinetic studies of the esterification of pure and dilute acrylic acid with 2-ethyl hexanol catalysed by Amberlyst 15

“…The activation energy of the esterification of AA with 2EH catalysed by Amberlyst 15 was in good agreement with the activation energy reported by Akbay and Altıokka (2011) for the esterification of AA with propylene glycol catalysed by Amberlyst 15. However, it was higher than the activation energy reported by Komoń et al (2013) and Sert et al (2013) for the AA esterification catalysed by Amberlyst 70 and Amberlyst 131, respectively. Komoń et al (2013) employed Amberlyst 70 in their reaction obtained slightly lower apparent activation energy (50.1 kJ/mol).…”

Kinetic and thermodynamic studies of the esterification of acidified oil catalyzed by sulfonated cation exchange resin

“…Therefore, the temperature is an important factor affecting the esterification. The relationship between the conversion rate of FFAs and temperature is very useful in calculating the equilibrium constant, activation energy and other thermodynamic parameters [28]. In an endothermic reaction, the reaction equilibrium constant and the conversion rate of FFAs increased with the reaction temperature.…”

A comparative study on the catalytic performance of different types of zeolites for biodiesel production

“…where C M is the dimensionless Mears parameter, r 0 is the initial reaction rate which equals to the reaction rate at 60 min of oleic acid, q is the framework density of zeolite, d is the mean diameter of sample particles, C o0 is the initial concentration of oleic acid, n is the reaction order (the reaction was second-order and was proofed by Pseudo-homogeneous second order reaction kinetic model in Supporting Information), and k c is the mass transfer coefficient, estimated by the Dwivedi-Upadhyay equation [32]. The calculated value of dimensionless Mears parameter was much smaller than 0.15, indicating that the external mass transfer limitations in the solid-liquid interface were overcome and the boosting effect of agitation on the conversion rate was negligible when the stirring speed reached 600 rpm.…”