Low Corrosion In Zeolite Oligomerisation
    1.
    发明申请
    Low Corrosion In Zeolite Oligomerisation 有权
    低沸点沸石低聚物

    公开(公告)号:US20080312484A1

    公开(公告)日:2008-12-18

    申请号:US11914643

    申请日:2006-06-16

    IPC分类号: C07C2/02

    摘要: Water reacts on molecular sieve catalysts used in oligomerisation reactions and forms oxygenated compounds, in particular organic acids that may cause corrosion problems downstream of the reactor, in particular in distillation tower overhead systems and downstream thereof. A lowering of the presence of water in the feed prior to contacting thereof with the molecular sieve brings a significant reduction in corrosion downstream. At the same time, it has a significant beneficial effect on catalyst activity and brings a significant extension of catalyst life. Lowering water in the feed is particularly effective when organic nitrogen-containing Lewis bases are present in the feed, even at low levels.

    摘要翻译: 水在低聚反应中使用的分子筛催化剂上反应,形成氧化化合物,特别是可能在反应器下游引起腐蚀问题的有机酸,特别是在蒸馏塔塔顶系统及其下游。 在与分子筛接触之前,进料中水的存在的降低导致下游腐蚀的显着降低。 同时对催化剂活性有显着的有益影响,催化剂寿命延长。 当有机含氮路易斯碱存在于进料中时,甚至在低水平下,降低进料中的水是特别有效的。

    Low corrosion in zeolite oligomerisation
    2.
    发明授权
    Low corrosion in zeolite oligomerisation 有权
    沸石低聚中的低腐蚀性

    公开(公告)号:US07880046B2

    公开(公告)日:2011-02-01

    申请号:US11914643

    申请日:2006-06-16

    IPC分类号: C07C2/02

    摘要: Water reacts on molecular sieve catalysts used in oligomerization reactions and forms oxygenated compounds, in particular organic acids that may cause corrosion problems downstream of the reactor, in particular in distillation tower overhead systems and downstream thereof. A lowering of the presence of water in the feed prior to contacting thereof with the molecular sieve brings a significant reduction in corrosion downstream. At the same time, it has a significant beneficial effect on catalyst activity and brings a significant extension of catalyst life. Lowering water in the feed is particularly effective when organic nitrogen-containing Lewis bases are present in the feed, even at low levels.

    摘要翻译: 水在低聚反应中使用的分子筛催化剂上反应,形成氧化化合物,特别是可能在反应器下游引起腐蚀问题的有机酸,特别是在蒸馏塔塔顶系统及其下游。 在与分子筛接触之前,进料中水分的降低导致下游腐蚀的显着降低。 同时对催化剂活性有显着的有益影响,催化剂寿命延长。 当有机含氮路易斯碱存在于进料中时,甚至在低水平下,降低进料中的水是特别有效的。

    Purification of aromatic feedstock
    5.
    发明授权
    Purification of aromatic feedstock 有权
    芳香原料的纯化

    公开(公告)号:US09057025B2

    公开(公告)日:2015-06-16

    申请号:US13186039

    申请日:2011-07-19

    申请人: Stephen H. Brown

    发明人: Stephen H. Brown

    IPC分类号: C10G25/03 B01J29/06 B01J29/70

    摘要: The invention is a process for removing impurities from an aromatics stream and apparatus for the practice thereof, whereby trace olefins and dienes are removed from aromatic plant feedstocks using a reactor design that enables the product to be backmixed with the feedstock and that enables a feed/effluent heat exchanger.

    摘要翻译: 本发明是用于从芳族化合物流中除去杂质的方法及其实践的装置,其中使用能使产物与原料反混的反应器设计从芳族植物原料中除去痕量烯烃和二烯, 流出热交换器。

    Enhancement of saturates content in heavy hydrocarbons utilizing ultrafiltration
    9.
    发明授权
    Enhancement of saturates content in heavy hydrocarbons utilizing ultrafiltration 有权
    利用超滤增强重质烃中的饱和物含量

    公开(公告)号:US08177965B2

    公开(公告)日:2012-05-15

    申请号:US11980157

    申请日:2007-10-30

    IPC分类号: C07C7/144

    摘要: This invention relates to an ultrafiltration process for separating a heavy hydrocarbon stream to produce an enriched saturates content stream(s) utilizing an ultrafiltration separations process. The enriched saturates content streams can then be further processed in refinery and petrochemical processes that will benefit from the higher content of saturated hydrocarbons produced from this separations process. The invention may be utilized to separate heavy hydrocarbon feedstreams, such as whole crudes, topped crudes, synthetic crude blends, shale oils, oils derived from bitumen, oils derived from tar sands, atmospheric resids, vacuum resids, or other heavy hydrocarbon streams into enriched saturates content product streams. The invention provides an economical method for separating heavy hydrocarbon stream components by molecular species instead of molecular boiling points.

    摘要翻译: 本发明涉及一种用于分离重质烃流以利用超滤分离方法产生富集的饱和物含量物流的超滤方法。 然后可以在炼油和石油化学方法中进一步处理富集的饱和物质流,这将从该分离过程产生的较高含量的饱和烃受益。 本发明可以用于分离重烃进料流,例如整个原油,顶部原油,合成粗混合物,页岩油,来自沥青的油,源自焦油砂的油,常压渣油,减压渣油或其它重质烃流进入富集 饱和内容产品流。 本发明提供了一种经分子物质代替分子沸点分离重质烃流成分的经济方法。