YS—银催化剂应用于乙烯氧化生产环氧乙烷的工艺过程。在反应过程中,除主反应外,还有副反应。主要的副反应是乙烯氧化生成二氧化碳和水。各组份的浓度和反应温度对主反应和副反应的影响是不同的,因面温度分布和浓度分布影响催化剂的选择性。 YS-silver catalyst used in the ethylene oxide production of ethylene oxide process. In the reaction process, in addition to the main reaction, there are side effects. The main side reaction is the oxidation of ethylene to carbon dioxide and water. The concentration of the components and the reaction temperature on the main reaction and side effects are different, due to surface temperature distribution and concentration distribution of the catalyst selectivity.