Simulation and Optimization in the Process of Toluene Liquid-phase Catalytic Oxidation
Liquid-phase oxidation of toluene with air has become the main technology for producing benzoic acid in a reactor at the present time. Based on the kinetic model of the toluene oxidation process obtained from laboratory and mass balance of key component, a novel model is established to simulate the industrial toluene oxidation process, in which the effects of benzaldehyde and benzyl alcohol are considered and the kinetic parameters are revised by industrial data. The simulation results show that the error of benzoic acid yield is within 3.5％. Based on the simulation model, to maximize the benzoic acid yield, an optimization model is proposed to optimize operating parameters, including toluene feed-in mass flux and temperature. The optimization result shows that, on the allowable operating conditions, the maximum benzoic acid yield obtained when reaction temperature at 167.2℃ and mass flux at 104.1t/h is greater than the current one, which can be used to guide industrial reactor’s operation.
Toluene Benzoic acid Catalytic oxidation Simulation Optimization.
Zhang Yukun Li Chufu He Xiaorong Chen Bingzhen
Department of Chemical Engineering,Tsinghua University,Beijing,100084,China
国际会议
西安
英文
2007-08-15（万方平台首次上网日期，不代表论文的发表时间）