PROCESS FOR SEPARATING CARBON DIOXIDE AND ARGON FROM HYDROCARBONS

    公开(公告)号:US20210284616A1

    公开(公告)日:2021-09-16

    申请号:US17259979

    申请日:2019-06-17

    发明人: Jintang DUAN

    IPC分类号: C07D301/08 C07D303/04

    摘要: Systems and methods for producing ethylene oxide (EO) are disclosed. Ethylene oxide is produced by direct oxidizing ethylene with oxygen in a reactor. The effluent from the reactor is processed to produce (a) a product stream comprising water and ethylene oxide, (b) a reabsorber overhead stream comprising ethylene, methane, argon, and carbon dioxide, and (c) a carbonate flash gas stream comprising carbon dioxide, ethylene, methane, and water. The reabsorber overhead stream and the carbonate flash gas stream are combined to form a reclaim gas stream. The reclaimed gas stream is separated in a membrane separation unit to remove carbon dioxide and argon, forming a recycle stream comprising primarily ethylene and methane, collectively.

    Ethylene oxide recovery process
    58.
    发明授权
    Ethylene oxide recovery process 失效
    环氧乙烷回收工艺

    公开(公告)号:US07569710B1

    公开(公告)日:2009-08-04

    申请号:US12070992

    申请日:2008-02-23

    申请人: Brian Ozero

    发明人: Brian Ozero

    摘要: An improved process for the recovery of a high-purity, ethylene oxide-water stream for use as feed to integrated ethylene glycol or ethylene oxide purification reactors by first contacting the gaseous effluent from ethylene oxide reactors with an aqueous alkaline quench solution water wash, then absorbing ethylene oxide from the washed vapor into process water to produce a dilute EO-water absorbate of which 10-90% is sent directly to the EO reabsorber/residual absorber, thereby bypassing the EO stripper.

    摘要翻译: 一种用于回收高纯度环氧乙烷 - 水流的改进方法,用于通过首先使环氧乙烷反应器的气态流出物与碱性骤冷溶液水洗液接触,用于整合的乙二醇或环氧乙烷净化反应器的进料,然后 将环氧乙烷从洗涤的蒸汽中吸收到工艺水中,以产生稀释的EO-水吸收剂,其中10-90%直接发送到EO再吸收器/残余吸收器,从而绕过EO汽提器。