环己烷均相催化氧化动力学研究

Kinetic model of cyclohexane oxidation in a homogeneous catalysed process

在温度丁=423～443K,压力p=1.2MPa（表压）,搅拌速率N=300～1000 r/min以及气体流量（以标准状况下计算）G=0.8～2.0L/min条件下,以环烷酸钴作催化剂对环己烷液相空气氧化动力学进行了研究.实验考察了搅拌速率、温度、催化剂等因素对于反应效果的影响.此外,在温度与催化剂对反应影响考察结果的基础上,采用环己烷无催化氧化的动力学半机理模型得出了环己烷催化氧化动力学模型.该模型能够较好的预测实验数据,其相对标准偏差（RSD）＜10%.

A model of cyclohexane catalytic oxidation in a liquid phase was presented based on observation of the effect of temperature and catalyst on the reaction. As a catalyst, cobalt naphthenate was used under the conditions as follows： the temperature T = 423 - 443 K, pressure p = 1.2 MPa and the stirring rate N = 300 - 1 000 r/min. The reaction rate constants as well as the activation energies were determined on the basis of the experi- mental results obtained in a laboratory reactor. The simulated results were in good agreement with the experiments with a RSD〈 10 %.