Process for upgrading olefinic gasolines by etherification
    1.
    发明授权
    Process for upgrading olefinic gasolines by etherification 失效
    通过醚化提纯烯烃汽油的方法

    公开(公告)号:US4664675A

    公开(公告)日:1987-05-12

    申请号:US745985

    申请日:1985-06-18

    CPC分类号: C10L1/023

    摘要: The invention concerns a process for upgrading olefinic gasolines containing C.sub.5 hydrocarbons, but free of C.sub.4 hydrocarbons, by etherification. It is characterized in that the tertiary olefins of the charge are reacted (1 and 2) with methanol; the reaction effluent being then extracted (3) with water, in order to separate an aqueous phase containing the major part of the unreacted methanol from a hydrocarbon phase containing the major part of the formed ethers. The aqueous phase is then introduced in a distillation zone (4) where water is separated from methanol and recycled to the extraction zone (3), whereas methanol is recycled to the etherification zone (1 and 2).

    摘要翻译: 本发明涉及一种通过醚化提纯含有C5烃但不含C4烃的烯烃汽油的方法。 其特征在于电荷的叔烯烃与甲醇反应(1和2); 然后将反应流出物用水萃取(3),以便将含有主要部分未反应的甲醇的水相与含有主要部分形成的醚的烃相分离。 然后将水相引入蒸馏区(4),其中将水从甲醇中分离并再循环至萃取区(3),而甲醇被再循环至醚化区(1和2)。