APPARATUSES AND METHODS FOR FORMING C8 AROMATIC STREAMS WITH SELECTED AMOUNTS OF C9 AROMATICS
    2.
    发明申请
    APPARATUSES AND METHODS FOR FORMING C8 AROMATIC STREAMS WITH SELECTED AMOUNTS OF C9 AROMATICS 有权
    用于形成具有C9芳族化合物选择量的C8芳香条纹的装置和方法

    公开(公告)号:US20150094512A1

    公开(公告)日:2015-04-02

    申请号:US14040341

    申请日:2013-09-27

    Applicant: UOP LLC

    CPC classification number: C07C7/005 B01D3/143 B01D3/26 C07C7/04 C07C7/13 C07C15/08

    Abstract: Apparatuses and methods are provided for forming C8 aromatic streams with selected amounts of C9 aromatics. In one embodiment, a method for forming a C8 aromatic stream with a selected amount of C9 aromatics includes fractionating a hydrocarbon stream including C8 and C9 aromatics into a sidedraw fraction and a bottom fraction. The sidedraw fraction includes a portion of the C8 aromatics and a portion of the C9 aromatics. The bottom fraction includes remaining C8 aromatics and C8+ hydrocarbons. The method further includes fractioning the bottom fraction and forming a heavy overhead fraction including the remaining C8 aromatics. Also, the method includes combining the sidedraw fraction and the heavy overhead fraction to form a combined stream having a C9 aromatics composition of from about 0.1 wt % to about 5 wt % about 2 wt % of a total weight of the combined stream.

    Abstract translation: 提供了用于形成具有选定量的C 9芳族化合物的C 8芳族物流的装置和方法。 在一个实施方案中,用选定量的C 9芳族化合物形成C8芳族物流的方法包括将包含C8和C9芳族化合物的烃物流分馏到侧面部分和底部馏分中。 侧面部分包括C8芳族化合物的一部分和C9芳族化合物的一部分。 底部馏分包括剩余的C8芳族化合物和C8 +烃。 该方法还包括分馏底部馏分并形成包括剩余的C8芳族化合物的重的塔顶馏分。 此外,该方法包括组合侧面部分和重的塔顶馏分以形成具有C9芳烃组合物的组合流,其为组合料流总重量的约0.1重量%至约5重量%约2重量%。

    METHODS AND APPARATUSES FOR PRODUCING XYLENE FROM PROPYLBENZENE
    5.
    发明申请
    METHODS AND APPARATUSES FOR PRODUCING XYLENE FROM PROPYLBENZENE 审中-公开
    从丙苯生产XYLENE的方法和装置

    公开(公告)号:US20150307412A1

    公开(公告)日:2015-10-29

    申请号:US14260185

    申请日:2014-04-23

    Applicant: UOP LLC

    Abstract: Methods and apparatuses are provided for producing xylene. A method includes combining a propylbenzene containing feed with a xylene raffinate stream, where the xylene raffinate stream is provided from a xylene recovery unit. The xylene raffinate stream and the propylbenzene containing feed are isomerized in an isomerization unit to produce an xylene isomerization effluent stream, where the xylene isomerization effluent stream includes aromatic compounds having 8, 9, or 10 carbons atoms. The aromatic compounds having 8 carbon atoms are separated from the aromatic compounds having 9 or 10 carbons, and the aromatic compounds having 8 carbons are fed to the xylene recovery unit. The aromatic compounds having 9 or 10 carbons are transalkylated with toluene to produce xylene.

    Abstract translation: 提供了生产二甲苯的方法和装置。 一种方法包括将含丙基苯的进料与二甲苯萃余液流组合,其中二甲苯萃余液流由二甲苯回收装置提供。 二甲苯萃余液流和含丙基苯的进料在异构化单元中异构化以产生二甲苯异构化流出物流,其中二甲苯异构化流出物流包含具有8,9或10个碳原子的芳族化合物。 将具有8个碳原子的芳族化合物与具有9或10个碳的芳族化合物分离,并且将具有8个碳的芳族化合物进料到二甲苯回收单元中。 具有9或10个碳原子的芳族化合物与甲苯进行烷基转移,生成二甲苯。

    APPARATUSES AND METHODS FOR ISOLATING C8 AROMATICS
    6.
    发明申请
    APPARATUSES AND METHODS FOR ISOLATING C8 AROMATICS 审中-公开
    用于分离C8芳族化合物的方法和方法

    公开(公告)号:US20150094507A1

    公开(公告)日:2015-04-02

    申请号:US14040318

    申请日:2013-09-27

    Applicant: UOP LLC

    Abstract: Apparatuses and methods are provided for isolating C8 aromatics from hydrocarbon streams. In one embodiment, a method for separating C8 aromatics from a hydrocarbon stream includes introducing the hydrocarbon stream to a fractionation column at a feed point. Further, the method includes fractionating the hydrocarbon stream in the fractionation column. Also, the method includes withdrawing a sidedraw fraction from the fractionation column at a draw point located above the feed point, wherein the sidedraw fraction includes C8 aromatics.

    Abstract translation: 提供了用于从碳氢化合物流中分离C8芳族化合物的装置和方法。 在一个实施方案中,从烃流中分离C8芳族化合物的方法包括在进料点将烃流引入分馏塔。 此外,该方法包括在分馏塔中分馏烃流。 此外,该方法包括在位于供料点上方的牵引点处从分馏塔中取出侧面部分,其中侧面部分包括C8芳族化合物。

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