Epoxidation process with added moderator

• Main Authors: ASHOK S PADIA, HASSAN EISA AL-AHMADI
• Format: Patent
• Language: Chinese; English
• Published: 26.10.2018
• Subjects: CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY

The invention provides an epoxidation process with an added moderator. The invention provides a method for the epoxidation of an olefin comprising the steps of reacting a feed gas composition containing an olefin, oxygen, and a moderator having an optimal moderator concentration in the presence of an epoxidation catalyst at a first temperature and having a first selectivity; and increasing the optimal moderator concentration to a second moderator concentration and whereby the first selectivity is lowed to a second selectivity and the first temperature to a second temperature. 本发明提供了具有添加缓和剂的环氧化方法。本发明提供了种用于烯烃环氧化的方法，包括以下步骤：使含烯烃、氧和缓和剂的进料气体组合物反应，所述缓和剂在环氧化催化剂存在下在第温度下具有最佳缓和剂浓度并具有第选择性；以及增加所述最佳缓和剂浓度至第二缓和剂浓度，由此将所述第选择性下降到第二选择性以及将所述第温度下降到第二温度。