Oxidation Burning Reaction Kinetics of Acetic Acid in a Liquid Phase Catalytic Process

The kinetics of oxidation burning reaction of acetic acid in liquid-phase catalytic processes is studied in a semi-batch stirred titanium reactor by measuring the formation concentrations of CO2 and CO with cobalt acetate and manganese acetate as main catalyst,potassium bromide as promoter,and potassium acetate as assistant catalyst.The effects of air flow,temperature,total catalyst concentration,[Co]/[Mn] ratio,bromide concentration,water content on the catalytic burning loss rate of acetic acid are discussed.The experimental results show that the formation rate constants of CO2 and CO increase remarkably with increasing [Co]/[Mn] ratio and total catalyst concentration.The loss of acetic acid in oxidation processes is restrained by increasing [Br]/[Co] ratio and decreasing the reaction temperature.Meanwhile,the reaction activation energy values of CO2 and CO are obtained as 88.11 and 127.31 kJ/mol respectively.