在Au/TS-1上原位再生H_2O_2用于丙烯环氧化反应研究

Liquid-phase Selective Oxidation of Propylene over Au/TS-1 Catalysts in the Presence of Oxygen and Hydrogen

在液相条件下 ,对 Au/ TS- 1催化氧化和氢气原位再生 H2 O2 用于丙烯的环氧化进行了研究 .结果表明 ,氧气的存在促进了丙烯的加氢 ,同时分子氧的活化也离不开氢气 ;只有在氢气和氧气共存时 ,丙烯环氧化的反应才能进行 ,丙烯的加氢和分子氧的活化发生在同一活性中心上 .在液相条件下环氧丙烷 (PO)

The liquid\|phase selective oxidation of propylene was studied over Au/TS\|1 catalysts in the presence of oxygen and hydrogen. The higher yield of propylene oxide(PO) was obtained than that in the gas\|phase oxidation. The hydrogenation of propylene is enhanced by oxygen, and the molecular oxygen can not be activated without hydrogen. They are generated on the same active sites.