超临界CO_2介质中丙烯直接环氧化生产PO研究进展

Study Advance on Epoxidation of Produce PO in Supercritical Carbon Dioxide

在Pt-Pd/TS-1催化下,利用H2、O2原位生成的H2O2进行的丙烯环氧化生产环氧丙烷是特别有意义的方法。环氧丙烷的选择性与催化剂的类型、催化剂还原方法、Pd的附载量以及溶剂的种类等有关,在超临界CO2中比在N2或甲醇中选择性高。

Epoxidation of propylene over a Pd-Pt/FS-1 catalyst with in situ hydrogen peroxide from a mixture of O2 and H2 is a particularly interesting approach. The aeleetiveity to PO is related to the types of eatalyst.the reduction methods,the addition of platinum and the types of solvent. In supercritieal CO2 ,the seleetiveity to PO is enhanced than in N2 or MeOH.