Method for reducing Conradson carbon content of petroleum streams
    31.
    发明授权
    Method for reducing Conradson carbon content of petroleum streams 失效
    减少石油流的康拉逊碳含量的方法

    公开(公告)号:US5514252A

    公开(公告)日:1996-05-07

    申请号:US440439

    申请日:1995-05-12

    IPC分类号: C10G32/02 C25B1/00

    CPC分类号: C25B3/04 C10G32/02

    摘要: The present invention provides a method for decreasing the Conradson carbon ("Concarbon") number of petroleum feedstreams by passing an electric current through a mixture of a petroleum stream, typically having a Conradson carbon residue of at least about 0.1% and an aqueous electrolysis medium at a pH and cathodic voltage for a time sufficient to decrease the Conradson carbon number of the petroleum stream. The electrolysis medium contains quaternary carbyl or hydrocarbyl onium salts; inorganic hydroxides such as NaOH or KOH, or mixtures thereof. A cathodic voltage of 0 V to -3.0 V vs. Saturated Calomel Electrode (SCE) and a pH of 6-14, preferably 7 to 14, more preferably above 7 to 14 are used.The invention has utility for converting less economically desirable refinery feeds to feeds that are more valuable.

    摘要翻译: 本发明提供了一种通过使电流通过典型地具有至少约0.1%的康拉多森碳残余物的石油流和水电解介质的混合物来降低石油原料流的康拉多森碳(“碳”)数的方法 在pH和阴极电压下时间足以降低石油流的康拉多森碳数。 电解介质含有季碳基或烃基鎓盐; 无机氢氧化物如NaOH或KOH,或其混合物。 使用0V至-3.0V对饱和马洛代尔电极(SCE)的阴极电压和6-14,优选7至14,更优选高于7至14的pH。 本发明具有将经济上较少的炼油原料转化成更有价值的进料的效用。

    Process for separating solute material from an algal cell feed stream
    33.
    发明授权
    Process for separating solute material from an algal cell feed stream 有权
    从藻类细胞进料流中分离溶质的方法

    公开(公告)号:US08877058B2

    公开(公告)日:2014-11-04

    申请号:US13285834

    申请日:2011-10-31

    IPC分类号: B01D11/00 C07C51/48 C11B1/10

    摘要: This invention provides a process for separating solute material from an algal cell feed stream. The algal cell feed stream, which contains the solute material, can be introduced into on portion of a mixer-settler vessel, and a solvent feed stream can be introduced into another portion of the vessel to mix with the algal cell feed stream, with a goal of separating at least a portion of the solute material from the algal feed stream.

    摘要翻译: 本发明提供了从藻类细胞进料流中分离溶质的方法。 将含有溶质材料的藻类细胞进料流引入混合器 - 沉降器容器的一部分上,并将溶剂进料流引入容器的另一部分以与藻类细胞进料流混合, 将溶质材料的至少一部分与藻类进料流分离的目标。

    Crude oil pre-heat train with improved heat transfer
    34.
    发明授权
    Crude oil pre-heat train with improved heat transfer 失效
    原油预热火车具有改善的热传递

    公开(公告)号:US08349267B2

    公开(公告)日:2013-01-08

    申请号:US12232946

    申请日:2008-09-26

    IPC分类号: B01J8/00

    CPC分类号: C10G75/04 C10G9/16

    摘要: Targeted application of anti-fouling mechanisms in a heat exchange system produces higher rates of energy recovery. The anti-fouling mechanisms with high mitigation rates can be deployed at only the hottest portions of a pre-heat train that experience the highest rates of fouling and heat loss. In application, bundles of corrosion resistant smoothed tubes are deployed in the late pre-heat train to significantly reduce the formation of harder deposits. Vibration can be used as an adjunct approach in conjunction with the corrosion resistant, smooth tubes, or deployed alone on existing bundles. The use of high performing, more durable exchangers in select locations justifies the increased cost of these components.

    摘要翻译: 防污机构在热交换系统中的目标应用产生更高的能量回收率。 具有高缓解率的防污机制只能部署在经受最高污染和热损失率的预热列车的最热部分。 在应用中,在后期预热火车中部署了耐腐蚀平滑管束,以显着减少较硬沉积物的形成。 振动可以作为辅助方法与耐腐蚀,光滑的管一起使用,或单独部署在现有的束上。 在选择的位置使用高性能,更耐用的交换器证明了这些部件的成本增加。

    Method For Reducing The Nitrogen Content Of Petroleum Streams With Reduced Sulfuric Acid Consumption
    38.
    发明申请
    Method For Reducing The Nitrogen Content Of Petroleum Streams With Reduced Sulfuric Acid Consumption 审中-公开
    降低硫酸消耗的石油流氮含量的方法

    公开(公告)号:US20080035530A1

    公开(公告)日:2008-02-14

    申请号:US10579178

    申请日:2004-12-01

    IPC分类号: C10G17/06

    CPC分类号: C10G17/06 C10G67/08

    摘要: The instant invention relates to a multi-stage process for producing low-nitrogen hydrocarbonaceous boiling range products involving contacting a hydrocarbonaceous feedstream with an acidic solution to selectively remove heterocyclic nitrogen-containing compounds, recovering the used sulfuric acid solution, and cascading the used sulfuric acid solution to another downstream contacting stage.

    摘要翻译: 本发明涉及一种用于生产低氮含碳沸点产物的多级方法,包括使含烃原料流与酸性溶液接触以选择性地除去杂环含氮化合物,回收所用的硫酸溶液,并将所用的硫酸 溶液到另一个下游接触阶段。