FTH-2催化剂上重芳烃烷基转移反应动力学研究

Study on kinetics of heavy aromatics transalkylation reaction over FTH-2 catalyst

对在FTH-2催化剂上重芳烃烷基转移反应的本征动力学进行了研究。在排除内外扩散影响后,结合变空速实验确定反应的主反应,并进行动力学实验,建立动力学模型,采用常微分方程的参数估值法进行参数估值,利用Matlab编程对参数进行优化计算,并检验模型参数,确定苯与重芳烃的烷基转移反应的本征动力学方程为:r_1=1.3027×10~4exp(-6.927/RT)·y_(TIPB)^(0.73)·y_B^(2.41)·y_(IPB)^(-0.64)

The intrinsical kineticsal of heavy aromatic transalkylation reactionon FTH-2catalysts was investigated.The kinetic experiments were carried out under the conditions of excluding the effects of internal and external diffusion to determine the main reaction with variable space velocity experiments.The kinetic model was established,and the ordinary differential equation was used to estimate the parameters.The parameters were optimized by MATLAB programming,and the model parameters were tested.The intrinsical kinetic equations determined for the transalkylation reactions of benzene and heavy aromatics was as follow:r1=13027×104exp(-6927RT)·y0.73TIPB·y241B·y-0.64IPB