Kinetic Study of Catalytic Hydrolysis of Cyclohexyl Acetate
1. College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China;
2. State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
Abstract On the basis of eliminating the influence of external diffusion, the reaction kinetics data were measured under the conditions of stirring speed of 700 r/min, reaction temperature of 348.15-368.15 K and catalyst dosage of 10%-15% (based upon the total mass of cyclohexyl acetate and water) and the hydrolysis kinetics of cyclohexyl acetate for the preparation of cyclohexanol over the ion-exchange-resin catalyst (D006) was studied. The Langmuir-Hinshelwood-Hougen-Watson (LHHW) kinetic model based upon the activity was established and the model parameters were fitted by non-linear least-square method. The results showed that the pre-exponential factor, the activation energy and the standard reaction enthalpy of the hydrolysis reaction were 9.532×106 mol/(g·min), 60.94 kJ/mol and 21.85 kJ/mol respectively. The kinetic model fitted well with the experimental data.
