Kinetics of synthesis of sec-butyl acetate by C_4 and acetic acid

To provide kinetics data for the industrial production of sec-butyl acetate,the intrinsic kinetics of the direct esterification of acetic acid and C4 in liquid phase with cation exchange resin as catalyst was studied.The sec-butyl acetate was synthesized in a batch stirred tank reactor,using the C4 mixture from the MTBE subsequent section which removed isobutylene.Eliminating both internal and external diffusion effects,the influence of catalyst dosage and reaction temperature on the reaction rate was studied.The rate constant and the activation energy of positive esterification reaction are 65.23 L/(mol·min) and 325.17 J/mol respectively;those of negative esterification reaction are 0.239 L/(mol·min) and 900.47 J/mol respectively.The kinetic equation obtained based on the experiment provides basic data for the simulation optimization of reactive distillation.