作　　者： ; ; ; ; ; ; ;

机构地区： 广东工业大学轻工化工学院

出　　处： 《化学工程》 2006年第5期28-32,共5页

摘　　要： 研究了γ-丁内酯与乙醇胺在改性Y型分子筛上气相反应合成N-羟乙基吡咯烷酮(NHP)的情况,考察了分子筛组成、反应温度等对催化性能的影响。结果表明,CuREY具有较高的活性与稳定性,合适的反应温度为260—280℃。采用最小二乘法研究了反应的表观动力学,得到双曲线速率方程,计算了相关动力学参数,用Arrhen ius公式计算了近似的反应活化能与γ-丁内酯、乙醇胺的吸附活化能分别为49.28、-29.84、-21.53 kJ/mol,表明活性物种之间的反应为决速步骤。回归相关系数表明,双曲线动力学方程与反应能较好地吻合。 Gas phase reaction of γ-butyrolactone and ethanolamine to produce N-hydroxyethyl pyrrolidone （NHP） on modified Y Zeolites was studied. Influences of some factors such as catalyst composition and reaction temperature on catalytic properties were discussed. The results show that CuREY has comparatively high catalytic activity, stability, and optimal reaction temperature is 260-280℃. Apparent kinetics of the reaction was investigated with least-squares method and hyperbolic rate equation was represented. Kinetic parameters were calculated. Activation energy for the reaction of the adsorptive molecules, adsorption activation energy of T-butyrolactone and ethanolamine calculated through the Arrhenius equation are approximately 49.28, - 29.84 and -21.53 kJ/mol respectively, which indicates that the reaction of adsorptive molecules is rate-determining step. The correlation coefficient shows that obtained hyperbolic kinetic equation is fitting well with the reaction.

关 键 词： 型分子筛 丁内酯 羟乙基吡咯烷酮 动力学

领　　域： [理学] [理学]