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    Process and system for heating or cooling streams for a divided distillation column
    5.
    发明授权
    Process and system for heating or cooling streams for a divided distillation column 有权
    用于分馏蒸馏塔的加热或冷却流的方法和系统

    公开(公告)号：US08999117B2

    公开(公告)日：2015-04-07

    申请号：US12398070

    申请日：2009-03-04

    申请人： Michael A. Schultz ,  Xin X. Zhu ,  Jibreel A. Qafisheh

    发明人： Michael A. Schultz ,  Xin X. Zhu ,  Jibreel A. Qafisheh

    IPC分类号： B01D3/32 ,  B01D3/14

    CPC分类号： B01D3/14 ,  B01D3/141 ,  C10G2400/02

    摘要： One exemplary embodiment can be a system for separating a plurality of naphtha components. The system can include a column, an overhead condenser, and a side condenser. Generally, the column includes a dividing imperforate wall with one surface facing a feed and another surface facing at least one side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Typically, the overhead condenser receives an overhead stream including a light naphtha from the column. Usually, a side condenser receives a process stream from the column and returns the stream to the column to facilitate separation. A cooling stream may pass through the overhead condenser and then the side condenser.

    摘要翻译： 一个示例性实施例可以是用于分离多个石脑油组分的系统。 该系统可以包括塔，塔顶冷凝器和侧冷凝器。 通常，柱包括分隔的无孔壁，其一个表面面向进料，另一个表面面向至少一个侧流。 通常，壁延伸柱高度的大部分，以将该部分分成至少两个基本垂直的平行的接触部分。 通常，塔顶冷凝器从塔中接收包括轻石脑油的塔顶流。 通常，侧冷凝器从塔接收工艺流并将流返回到柱以便于分离。 冷却流可以通过顶部冷凝器，然后通过侧冷凝器。

    Selective hydrogenation of unsaturated aliphatic hydrocarbons in predominantly aromatic streams
    6.
    发明授权
    Selective hydrogenation of unsaturated aliphatic hydrocarbons in predominantly aromatic streams 失效
    主要是芳族物流中不饱和脂肪烃的选择性氢化

    公开(公告)号：US08350106B2

    公开(公告)日：2013-01-08

    申请号：US12165291

    申请日：2008-06-30

    申请人： Deng-Yang Jan ,  Michael A. Schultz

    发明人： Deng-Yang Jan ,  Michael A. Schultz

    IPC分类号： C07C5/05

    CPC分类号： C07C15/46 ,  C07C2/66 ,  C07C5/333 ,  C07C7/163 ,  C07C15/073

    摘要： The selective saturation of unsaturated aliphatic hydrocarbons (e.g., diolefins) in a hydrogenation feed stream comprising an aromatic compound (e.g., benzene) and one or more nitrogen compounds renders it beneficial when the stream or a portion thereof is subsequently treated (e.g., with a zeolitic adsorbent) to remove nitrogen. In particular, the selective saturation of, for example, olefins and diolefins prolongs the life of the nitrogen guard bed. In a representative embodiment, the selective hydrogenation is applied to a recycle benzene-containing stream recovered in the separation section (e.g., from the benzene/toluene splitter overhead) of a styrene production process, prior to treatment with a nitrogen guard bed adsorbent.

    摘要翻译： 在包含芳族化合物（例如苯）和一种或多种氮化合物的氢化进料流中，不饱和脂族烃（例如二烯烃）的选择性饱和使其在后续处理流或其一部分时（例如， 沸石吸附剂）去除氮气。 特别地，例如烯烃和二烯烃的选择性饱和延长了氮保护床的寿命。 在代表性的实施方案中，在用氮保护床吸附剂处理之前，将选择性氢化应用于在苯乙烯生产方法的分离段（例如苯/甲苯分离器塔顶馏出物）中回收的再循环含苯物流。

    Use of Mixed Activity Dehydrogenation Catalyst Following Oxidative Reheat
    8.
    发明申请
    Use of Mixed Activity Dehydrogenation Catalyst Following Oxidative Reheat 审中-公开
    氧化再热后混合活性脱氢催化剂的应用

    公开(公告)号：US20110004037A1

    公开(公告)日：2011-01-06

    申请号：US12825550

    申请日：2010-06-29

    申请人： Michael A. Schultz ,  Daniel A. Kauff ,  Kyle D. Mankin

    发明人： Michael A. Schultz ,  Daniel A. Kauff ,  Kyle D. Mankin

    IPC分类号： C07C5/327

    CPC分类号： C07C5/333 ,  B01J35/0006 ,  C07C15/46

    摘要： Methods are disclosed for the dehydrogenation of feed streams, such as in the manufacture of styrene from ethylbenzene, using a catalyst bed having catalyst with differing activities. In particular, the use of upstream and downstream catalyst beds of relatively low and high activities, respectively, can reduce the production of unwanted byproducts, especially in styrene production processes employing an oxidative reheat step (oxidation zone) prior to ethylbenzene dehydrogenation. The methods allow the maximum temperature in the oxidation zone to be decreased, thereby reducing the formation of unwanted oxygenated byproducts (e.g., phenol).

    摘要翻译： 公开了用于使用具有不同活性的催化剂的催化剂床从进料流脱氢的方法，例如从乙苯制造苯乙烯。 特别地，分别使用相对低和高活性的上游和下游催化剂​​床可以减少不需要的副产物的产生，特别是在乙苯脱氢之前使用氧化再热步骤（氧化区）的苯乙烯生产方法中。 这些方法允许氧化区中的最高温度降低，从而减少不需要的氧化副产物（例如苯酚）的形成。

    PROCESS AND SYSTEM FOR HEATING OR COOLING STREAMS FOR A DIVIDED DISTILLATION COLUMN
    10.
    发明申请
    PROCESS AND SYSTEM FOR HEATING OR COOLING STREAMS FOR A DIVIDED DISTILLATION COLUMN 有权
    用于加热或冷却分流柱的流程和系统

    公开(公告)号：US20100224536A1

    公开(公告)日：2010-09-09

    申请号：US12398070

    申请日：2009-03-04

    申请人： Michael A. Schultz ,  Xin X. Zhu ,  Jibreel A. Qafisheh

    发明人： Michael A. Schultz ,  Xin X. Zhu ,  Jibreel A. Qafisheh

    IPC分类号： C10G7/00 ,  B01D3/14

    CPC分类号： B01D3/14 ,  B01D3/141 ,  C10G2400/02

    摘要： One exemplary embodiment can be a system for separating a plurality of naphtha components. The system can include a column, an overhead condenser, and a side condenser. Generally, the column includes a dividing imperforate wall with one surface facing a feed and another surface facing at least one side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Typically, the overhead condenser receives an overhead stream including a light naphtha from the column. Usually, a side condenser receives a process stream from the column and returns the stream to the column to facilitate separation. A cooling stream may pass through the overhead condenser and then the side condenser.

    摘要翻译： 一个示例性实施例可以是用于分离多个石脑油组分的系统。 该系统可以包括塔，塔顶冷凝器和侧冷凝器。 通常，柱包括分隔的无孔壁，其一个表面面向进料，另一个表面面向至少一个侧流。 通常，壁延伸柱高度的大部分，以将该部分分成至少两个基本垂直的平行的接触部分。 通常，塔顶冷凝器从塔中接收包括轻石脑油的塔顶流。 通常，侧冷凝器从塔接收工艺流并将流返回到柱以便于分离。 冷却流可以通过顶部冷凝器，然后通过侧冷凝器。