CAJ | 학술논문

研究了叔丁醇溶剂中TS-1催化丙烯环氧化反应的本征动力学,反应条件为:温度303.15 K～323.15 K,丙稀压力0.3 MPa～0.6 MPa.根据反应机理及组分在TS-1上的吸附特点建立了如下的机理模型方程式:rcal=kK1CH2O2CC3H61+K1CH2O2+K2CC3H6+K3CPO根据实验数据,我们对机理模型进行了参数估值.检验结果表明拟合效果较好,反应符合Eley-Rideal机理,丙烯环氧化反应发生在吸附态的过氧化氢与游离态的丙烯之间.
연구료숙정순용제중TS-1최화병희배양화반응적본정동역학,반응조건위:온도303.15 K～323.15 K,병희압력0.3 MPa～0.6 MPa.근거반응궤리급조분재TS-1상적흡부특점건립료여하적궤리모형방정식:rcal=kK1CH2O2CC3H61+K1CH2O2+K2CC3H6+K3CPO근거실험수거,아문대궤리모형진행료삼수고치.검험결과표명의합효과교호,반응부합Eley-Rideal궤리,병희배양화반응발생재흡부태적과양화경여유리태적병희지간.
The intrinsic kinetics of propylene epoxidation with H2O2 over TS-1 in t-butyl alcohol/water system was investigated. The reaction was carried out at T=303.15 K～323.15 K, p=0.3 MPa～0.6 MPa. Based on the proposed reaction mechanism and adsorption characteristics, the kinetic model was established as follows: rcal=kK1CH2O2CC3H61+K1CH2O2+K2CC3H6+K3CPO based on the experimental data, the model parameters were estimated. The results showed that the Eley-Rideal model could fit precisely with the experimental data, and the reaction takes place between H2O2 adsorbed on Ti active sites and propylene in free state.