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14 条记录 (耗时 0.019 秒)

    Catalytic cracking process
    1.
    发明授权
    Catalytic cracking process 失效
    催化裂化过程

    公开(公告)号：US4388178A

    公开(公告)日：1983-06-14

    申请号：US334413

    申请日：1981-12-24

    申请人： Paul H. Lewis ,  Joseph A. Durkin ,  Joseph A. Froelich

    发明人： Paul H. Lewis ,  Joseph A. Durkin ,  Joseph A. Froelich

    IPC分类号： B01J27/12 ,  B01J29/08 ,  B01J29/12 ,  C10G11/05 ,  C10G11/08 ,  C10G11/18

    CPC分类号： C10G11/05 ,  B01J27/12 ,  B01J29/084 ,  B01J29/126

    摘要： An improved process for fluid catalytic cracking or hydrocarbons employing a Y zeolite in a silica-alumina matrix and containing from about 0.1 to about 5 weight percent fluorine. The catalyst is prepared by contacting a Y zeolite in a silica-alumina matrix with an aqueous solution of a fluorine compound, preferably an aqueous solution of hydrogen fluoride, for a period of 16 to 24 hours, followed by drying and calcining the resultant fluorided cracking catalyst. The process of cracking hydrocarbons with these catalysts produces improved yields of motor fuel fractions of improved octane number as compared with processes employing unfluorided cracking catalysts.

    摘要翻译： 用于流化催化裂化的改进方法或在二氧化硅 - 氧化铝基质中使用Y沸石并含有约0.1至约5重量％氟的烃。 该催化剂是通过使二氧化硅 - 氧化铝基体中的Y沸石与氟化合物的水溶液，优选氟化氢水溶液接触16至24小时来制备的，然后干燥并煅烧所得到的氟化裂化 催化剂。 与使用非氟化裂化催化剂的方法相比，使用这些催化剂裂化烃的方法产生了提高的辛烷值的马达燃料馏分的产率提高。

    Fluorided cracking catalyst
    2.
    发明授权
    Fluorided cracking catalyst 失效
    氟化裂解催化剂

    公开(公告)号：US4324698A

    公开(公告)日：1982-04-13

    申请号：US198859

    申请日：1980-10-20

    申请人： Paul H. Lewis ,  Joseph A. Durkin ,  Joseph A. Froelich

    发明人： Paul H. Lewis ,  Joseph A. Durkin ,  Joseph A. Froelich

    IPC分类号： B01J27/12 ,  B01J29/08 ,  B01J29/12 ,  B01J37/26

    CPC分类号： B01J29/126 ,  B01J27/12 ,  B01J29/084

    摘要： An improved zeolite-containing cracking catalyst prepared by treating a zeolite-containing cracking catalyst with an aqueous solution containing a fluorine compound, drying and calcining the fluorided catalyst. In a preferred embodiment, the fluorinating solution is an aqueous solution of hydrogen fluoride. The fluorided catalyst may be used per se as a cracking catalyst, or may be physically mixed with a metallic reforming catalyst for use as a cracking catalyst. The fluorided cracking catalysts exhibit improved activity and yield higher octane products than unfluorided cracking catalysts.

    摘要翻译： 通过用含氟化合物的水溶液处理含沸石的裂化催化剂制备改进的含沸石催化剂，干燥和煅烧氟化催化剂。 在优选的实施方案中，氟化溶液是氟化氢的水溶液。 氟化催化剂本身可以用作裂化催化剂，或者可以与用作裂化催化剂的金属重整催化剂物理混合。 与氟化裂化催化剂相比，氟化裂化催化剂表现出改善的活性并产生更高的辛烷值。

    Dual-adjustment balance circuit for operational amplifiers
    4.
    发明授权
    Dual-adjustment balance circuit for operational amplifiers 失效
    用于运算放大器的双调平衡电路

    公开(公告)号：US4207536A

    公开(公告)日：1980-06-10

    申请号：US882781

    申请日：1978-03-02

    申请人： Paul H. Lewis

    发明人： Paul H. Lewis

    IPC分类号： H03F3/45

    CPC分类号： H03F3/45479 ,  H03F2200/369

    摘要： A method and circuit for balancing the offset voltage of an operational amplifier having an input resistor connected to an inverting input, and a feedback resistor connected to and between the inverting input and the amplifier output. The circuit is made up of an adjustable voltage divider network connected to the positive and negative power supplies of the amplifier and includes coarse and fine potentiometers for applying a first adjustable voltage to the inverting input to set the inverting voltage to zero, and a third potentiometer for applying a second adjustable voltage to the non-inverting input to set the amplifier output voltage to zero. The resulting offset voltage balance is generally insensitive to changes in values of the input resistor and the feedback resistor.

    摘要翻译： 一种用于平衡具有连接到反相输入的输入电阻的运算放大器的偏移电压的方法和电路，以及连接到反相输入和放大器输出之间和之间的反馈电阻器。 该电路由连接到放大器的正电源和负电源的可调节分压器网络组成，并且包括用于向反相输入端施加第一可调电压以将反相电压设置为零的粗细电位器和第三电位计 用于将第二可调电压施加到非反相输入以将放大器输出电压设置为零。 所产生的偏移电压平衡通常对输入电阻和反馈电阻的值的变化不敏感。

    Process of preparing a catalyst containing activated isomerization sites
    7.
    发明授权
    Process of preparing a catalyst containing activated isomerization sites 失效
    制备含活化异构化位点的催化剂的方法

    公开(公告)号：US4716137A

    公开(公告)日：1987-12-29

    申请号：US652022

    申请日：1984-09-19

    申请人： Paul H. Lewis

    发明人： Paul H. Lewis

    IPC分类号： C07C5/22 ,  C07C5/27 ,  C07C6/12 ,  C07C5/24

    CPC分类号： C07C6/126 ,  C07C5/226 ,  C07C5/2791 ,  C07C6/123 ,  C07C2523/44 ,  C07C2529/22

    摘要： Isomerization is effected at improved conversion and selectivity by use of a 0.5 w %-2.5 w % platinum-palladium group metal on hydrogen mordenite catalyst, the catalyst having been calcined at 1200.degree. F.-1500.degree. F. prior to use whereby it acquires activated sites not present in mordenite calcined at lower temperature.

    摘要翻译： 异构化通过在氢丝光沸石催化剂上使用0.5w％-2.5w％铂 - 钯族金属在改善的转化率和选择性下进行，该催化剂在使用前在1200°F-1500°F下煅烧，从而获得 不存在于较低温度煅烧的丝光沸石中的活化部位。

    Process for catalytic dewaxing with mordenite
    8.
    发明授权
    Process for catalytic dewaxing with mordenite 失效
    用丝光沸石催化脱蜡的方法

    公开(公告)号：US4575417A

    公开(公告)日：1986-03-11

    申请号：US746825

    申请日：1985-06-20

    申请人： Paul H. Lewis

    发明人： Paul H. Lewis

    IPC分类号： B01J29/22 ,  C10G45/64 ,  C10G11/05 ,  C10G45/62

    CPC分类号： B01J29/22 ,  C10G45/64

    摘要： Catalytic dewaxing is effected with reduced coking by use of catalyst containing 0.5 w %-2.5 w % platinum-palladium group metal on hydrogen mordenite, the catalyst having been calcined at 1200.degree. F.-1600.degree. F. prior to use whereby it acquires activated sites (not present in mordenite products calcined at lower temperature) which are retained under anhydrous conditions.

    摘要翻译： 催化脱蜡通过使用含有0.5w％〜2.5w％铂 - 钯族金属的催化剂在氢丝光沸石上进行减少焦化，催化剂在使用前在1200°F-1600°F下煅烧，由此获得活化的 在无水条件下保留的部位（不存在于低温煅烧的丝光沸石产品中）。

    Process for dewaxing with mordenite
    10.
    发明授权
    Process for dewaxing with mordenite 失效
    用丝光沸石脱蜡的方法

    公开(公告)号：US4536486A

    公开(公告)日：1985-08-20

    申请号：US480640

    申请日：1983-03-31

    申请人： Paul H. Lewis

    发明人： Paul H. Lewis

    IPC分类号： B01J29/22 ,  C10G45/64

    CPC分类号： B01J29/22 ,  C10G45/64

    摘要： Catalytic dewaxing is effected with reduced coking by use of catalyst containing 0.5 w %-2.5 w % platinum-palladium group metal on hydrogen mordenite, the catalyst having been calcined at 1200.degree. F.-1600.degree. F. prior to use whereby it acquires activated sites (not present in mordenite products calcined at lower temperature) which are retained under anhydrous conditions.

    摘要翻译： 催化脱蜡通过使用含有0.5w％〜2.5w％铂 - 钯族金属的催化剂在氢丝光沸石上进行减少焦化，催化剂在使用前在1200°F-1600°F下煅烧，从而获得活化的 在无水条件下保留的部位（不存在于低温煅烧的丝光沸石产品中）。