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    Method of producing purified cyclopentane
    61.
    发明授权
    Method of producing purified cyclopentane 失效
    纯化环戊烷生产方法

    公开(公告)号：US06620982B1

    公开(公告)日：2003-09-16

    申请号：US09168979

    申请日：1998-10-07

    Applicant: Richard B. Halsey

    Inventor： Richard B. Halsey

    IPC: C07C502

    CPC classification number: C07C13/10 ,  C07C2521/04 ,  C07C2523/755 ,  C07C2523/882 ,  C07C2523/883 ,  C07C2601/08

    Abstract: A process for producing cyclopentane from by-product streams containing cyclopentene consists of distilling the cyclopentene from the feedstream and then hydrotreating the cyclopentene-containing fraction to cyclopentane. A second distillation step may then be employed to remove the hydrocarbons which are lighter than cyclopentane. The process has particular applicability in the treatment of feedstreams containing neo-hexane. The cyclopentene is easily separated from the neo-hexane in a conventional fractionator.

    Abstract translation: 从含有环戊烯的副产物流产生环戊烷的方法是从进料流中蒸馏出环戊烯，然后将含环戊烯馏分加氢处理成环戊烷。 然后可以使用第二蒸馏步骤来除去比环戊烷更轻的烃。 该方法在含有新己烷的进料流的处理中具有特别的适用性。 常规分馏塔中环戊烯容易与新己烷分离。

    Hydrotreating olefin stream with complete destruction of oxygenates
    62.
    发明授权
    Hydrotreating olefin stream with complete destruction of oxygenates 有权
    加氢处理烯烃流完全破坏含氧化合物

    公开(公告)号：US06548721B1

    公开(公告)日：2003-04-15

    申请号：US09862897

    申请日：2001-05-22

    Applicant: Beth Mc Culloch ,  Jennifer L. Gordon ,  Peter Kokayeff ,  Suheil F. Abdo ,  Daniel H. Wei

    Inventor： Beth Mc Culloch ,  Jennifer L. Gordon ,  Peter Kokayeff ,  Suheil F. Abdo ,  Daniel H. Wei

    IPC: C07C502

    CPC classification number: C07C7/163 ,  C07C2523/85 ,  C07C2523/883 ,  C07C2527/02 ,  C07C11/02

    Abstract: Disclosed is a process for completely destroying oxygenates in a feed stream. The feed stream of oxygenates typically includes olefins and it is reacted with hydrogen over a catalyst comprising a top row of Group VIII metal and a Group VI-B metal. Olefins are essentially completely saturated and any sulfur compounds present in the feed are completely converted to hydrogen sulfide. A preferred catalyst includes 2 to 5 wt-% nickel, 5 to 15 wt-% molybdenum, at least 5.5 wt-% sulfur, less than 0.05 wt-% phosphorus and no more than 0.3 wt-% silicon. The catalyst has low acidity and therefore does not promote the cracking of desired oligomeric products. The deoxygenation process is preferably a saturation process that follows an oligomerization process in which light olefins are oligomerized to heavy olefins. The saturation catalyst preferably has lower acidity which causes minimal cracking of desired oligomeric products. However, by optimally raising the temperature of the outlet of the saturation reaction zone, excessively heavy oligomers can be cracked down to desirable heavy oligomers.

    Abstract translation: 公开了一种在进料流中完全破坏含氧化合物的方法。 含氧化合物的进料流通常包括烯烃，并且其与氢气在包含第一排VIII族金属和VI-B族金属的催化剂上反应。 烯烃基本上完全饱和，并且进料中存在的任何硫化合物完全转化成硫化氢。 优选的催化剂包括2至5重量％的镍，5至15重量％的钼，至少5.5重量％的硫，小于0.05重量％的磷和不超过0.3重量％的硅。 催化剂具有低酸度，因此不促进所需低聚产物的裂化。 脱氧方法优选是在轻烯烃低聚至重质烯烃的低聚方法之后的饱和方法。 饱和催化剂优选具有较低的酸度，这导致所需低聚产物的最小裂化。 然而，通过最佳地提高饱和反应区的出口的温度，过量的低聚物可以被裂化成所需的重低聚物。

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