期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：242
期号：4
页码：1-11
DOI：10.1088/1755-1315/242/4/042016
出版社：IOP Publishing
摘要：One-step synthesis of propylene oxide from propylene in gas phase in the presence of hydrogen and oxygen is an environmentally friendly and energy-saving ideal reaction, which has important research value. The gold catalyst prepared by deposition and precipitation method has the advantages of small particle size, high dispersity and good activity. It is used for epoxidation of propylene in gas phase. The selectivity meets the requirements of industrialization. However, how to improve the conversion of propylene is still the focus of research. The effect of doping on the gas phase epoxidation of propylene is obvious. The purpose of this paper is to synthesize titanium silicate molecular sieves with composite structure and corresponding nano-gold catalysts by combining the advantages of high stability, weak surface acidity, large specific surface area, large pore size and pore volume of microporous titanium cinnamon molecular sieves.
