PROCEDE ET INSTALLATION DE SEPARATION D'UN MELANGE GAZEUX CONTENANT DU METHANE PAR DISTILLATION
    2.
    发明公开
    PROCEDE ET INSTALLATION DE SEPARATION D'UN MELANGE GAZEUX CONTENANT DU METHANE PAR DISTILLATION 有权
    方法和甲烷VORRICHUTNG的分离及含气体混合物精馏

    公开(公告)号:EP1454104A1

    公开(公告)日:2004-09-08

    申请号:EP01270739.4

    申请日:2001-12-13

    申请人: Technip France

    发明人: PARADOWSKI, Henri

    IPC分类号: F25J3/02

    摘要: The invention concerns a method and an installation for separating a gas mixture and gases obtained by said installation. The invention concerns a method and an installation for cryogenic separation of constituents of a natural gas under pressure (14) with a first phase separator (B1) whereof the constituents of each of the phases are separated in a distillation column (C1). Part of the gas fraction (5) derived from the head of the column (C1) is recycled at the last stage thereof. The method further comprises diverting (9) part of a first head fraction (3) derived from the first phase separator. Additionally, the method comprises separating a first base fraction (4) derived from the first separator, in a second separator (B2). The invention also relates to other embodiments.