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    • 1. 发明授权
    • Conversion of refinery C5 paraffins into C4 and C6 paraffins
    • 炼油厂C5石蜡转化为C4和C6链烷烃
    • US06566569B1
    • 2003-05-20
    • US09603489
    • 2000-06-23
    • Cong-Yan ChenDennis J. O'RearScott R. Brundage
    • Cong-Yan ChenDennis J. O'RearScott R. Brundage
    • C07C500
    • B01J23/6527B01J35/0006C10G45/58C10G59/00Y02P20/582
    • A process for preparing a C4- product stream and a C6+ product stream is disclosed. The process involves contacting a C5 containing paraffinic feedstock with a catalyst that includes a hydrogenation/dehydrogenation catalyst and an olefin metathesis catalyst under conditions which dehydrogenate the paraffins to olefins. The olefins are then metathesized and rehydrogenated to provide a product stream. A C4- fraction and a C6+ fraction can each be isolated from the product stream. The C4- fraction can be used, for example, in an alkylation reaction to provide compounds useful in gasoline compositions. Unconverted C5 paraffins can be recycled. The C6+ fraction can be used, for example, as solvents. Alternatively, they can be isomerized to form gasoline additives, or can be converted to aromatic compounds via reforming, for example, using conventional reforming techniques, preferably using the AROMAX™ process or traditional rheniforming conditions.
    • 公开了一种制备C4-产物流和C6 +产物流的方法。 该方法包括使含有C5的石蜡原料与包含氢化/脱氢催化剂和烯烃复分解催化剂的催化剂在使链烷烃脱氢成烯烃的条件下接触。 然后将烯烃进行复合和再氢化以提供产物流。 可以从产物流中分离出C4馏分和C6 +馏分。 C4馏分可用于例如烷基化反应以提供可用于汽油组合物中的化合物。 未转化的C5石蜡可以回收利用。 C6 +馏分可以用作例如溶剂。 或者,它们可以被异构化以形成汽油添加剂,或者可以通过重整转化为芳族化合物,例如使用常规的重整技术,优选使用AROMAX TM方法或传统的强化条件。
    • 8. 发明授权
    • Low emission, non-oxygenated fuel composition
    • 低排放,非氧化燃料组成
    • US06383236B1
    • 2002-05-07
    • US09576196
    • 2000-05-23
    • Joseph S. WelstandJohn FreelWilliam R. ScottMichael J. FuchsScott R. Brundage
    • Joseph S. WelstandJohn FreelWilliam R. ScottMichael J. FuchsScott R. Brundage
    • C10L106
    • C10L1/06
    • Provided is an unleaded gasoline fuel which is substantially free of oxygenates, i.e., the fuel contains less than 1.0 weight percent oxygen based on the total weight of the fuel composition, and most preferably contains no oxygen containing compounds. The gasoline fuel of the present invention also has a Reid vapor pressure of less than 7.5 psi, a sulfur content of less than 30 ppmw, and more preferably less than 20 ppmw sulfur, and an aromatic hydrocarbon content greater than 30 volume percent and/or a 50% D-86 Distillation Point greater than 220° F. and/or a 90% D-86 Distillation Point greater than 330° F. The gasoline fuel preferably also has an olefin content of no greater than 8 volume percent, and more preferably 5 volume percent or less. It has been found that such a gasoline fuel offers a substantially oxygenate free gasoline which avoids the environmental impact of oxygenates, yet when combusted in an internal combustion automobile provides good performance and good emissions.
    • 提供基本上不含氧化物的无铅汽油燃料,即燃料含有基于燃料组合物总重量小于1.0重量%的氧,最优选不含氧化合物。 本发明的汽油燃料还具有小于7.5psi,硫含量小于30ppmw,更优选小于20ppmw硫,以及大于30体积%的芳族烃含量的Reid蒸气压和/或 大于220°F的50%D-86蒸馏点和/或大于330°F的90%D-86蒸馏点。汽油优选还具有不大于8体积%的烯烃含量,更多 优选为5体积%以下。 已经发现,这样的汽油燃料提供了基本上不含氧的汽油,其避免了含氧化合物的环境影响,但是当在内燃汽车中燃烧时提供良好的性能和良好的排放。