ALKYLENE OXIDE CATALYST AND USE THEREOF
    9.
    发明申请
    ALKYLENE OXIDE CATALYST AND USE THEREOF 审中-公开
    烷基氧化物催化剂及其用途

    公开(公告)号:US20140088316A1

    公开(公告)日:2014-03-27

    申请号:US13624131

    申请日:2012-09-21

    摘要: A supported silver catalyst and use thereof in a process for producing an alkylene oxide, such as ethylene oxide, by the direct oxidation of an alkylene with oxygen or an oxygen-containing gas, wherein the catalyst provides improved stability and improved resilience to reactor upsets and timely recovery to substantially pre-upset levels of catalyst activity and/or efficiency. In some embodiments, the catalyst also exhibits improved activity. A catalyst capable of producing ethylene oxide at a selectivity of at least 87 percent while achieving a work rate of at least 184 kg/h/m3 at a temperature of no greater than 235° C. when operated in a process where the inlet feed to a reactor containing the catalyst comprises ethylene, oxygen, and carbon dioxide, wherein the concentration of carbon dioxide in the inlet feed is greater than or equal to 2 mole percent.

    摘要翻译: 负载型银催化剂及其在通过氧气或含氧气体直接氧化亚烷基的环氧乙烷生产方法中的用途,其中催化剂提供改进的稳定性和改善对反应器不稳定性的回弹性, 及时恢复,以大大预测催化剂活性和/或效率的水平。 在一些实施方案中,催化剂还表现出改进的活性。 能够以至少87%的选择性生产环氧乙烷的催化剂,同时在不高于235℃的温度下实现至少184kg / h / m3的工作速率,当在进料进料至 含有催化剂的反应器包括乙烯,氧气和二氧化碳,其中入口进料中二氧化碳的浓度大于或等于2摩尔%。