| abstract |
The present invention provides an epoxidation reactor system for preparing an olefin oxide comprising: - one or more purification zones comprising one or more purification vessels containing an absorbent comprising copper and zinc; and - a reaction zone comprising one or more reactor vessels containing an epoxidation catalyst, wherein the reaction zone is positioned downstream from the one or more purification zones; a process for preparing an olefin oxide; and a process for preparing a 1,2-diol, a 1,2-diol ether, a 1,2-carbonate, and an alkanolamine. |