METHOD FOR SELECTIVE HYDROGENATION OF PHENYLACETYLENE USING COMPOSITE BED IN THE PRESENCE OF STYRENE
    1.
    发明申请
    METHOD FOR SELECTIVE HYDROGENATION OF PHENYLACETYLENE USING COMPOSITE BED IN THE PRESENCE OF STYRENE 有权
    苯乙烯存在下使用复合床选择性加氢苯乙烯的方法

    公开(公告)号:US20110319684A1

    公开(公告)日:2011-12-29

    申请号:US13140645

    申请日:2009-12-17

    IPC分类号: C07C5/11

    CPC分类号: C07C7/167 C07C15/46

    摘要: The present invention discloses a process for the selective hydrogenation of phenylacetylene in the presence of styrene conducted in a combined bed, which process comprises under hydrogenation reaction conditions, passing a hydrocarbon fraction feedstock containing phenylacetylene and styrene through a combined bed reactor containing a catalyst A and a catalyst B to contact the feedstock with the catalyst A and the catalyst B in turn, wherein the catalyst A is a nickel-based catalyst, the catalyst B is at least one selected from the group consisting of palladium-based catalysts and copper-based catalysts, and a weight ratio of the catalyst A loaded to the catalyst B loaded is from 0.5:1 to 5:1.

    摘要翻译: 本发明公开了在合并床中进行苯乙烯选择性氢化的方法,该方法包括在氢化反应条件下,将含有苯基乙炔和苯乙烯的烃馏分原料通过含有催化剂A和 依次将原料与催化剂A和催化剂B接触的催化剂B,其中催化剂A是镍基催化剂,催化剂B是选自钯基催化剂和铜基催化剂中的至少一种 催化剂,负载催化剂B的催化剂A的重量比为0.5:1〜5:1。

    Method for selective hydrogenation of phenylacetylene using composite bed in the presence of styrene
    2.
    发明授权
    Method for selective hydrogenation of phenylacetylene using composite bed in the presence of styrene 有权
    在苯乙烯存在下使用复合床选择性氢化苯乙炔的方法

    公开(公告)号:US08916736B2

    公开(公告)日:2014-12-23

    申请号:US13140645

    申请日:2009-12-17

    IPC分类号: C07C5/11 C07C7/167

    CPC分类号: C07C7/167 C07C15/46

    摘要: The present invention discloses a process for the selective hydrogenation of phenylacetylene in the presence of styrene conducted in a combined bed, which process comprises under hydrogenation reaction conditions, passing a hydrocarbon fraction feedstock containing phenylacetylene and styrene through a combined bed reactor containing a catalyst A and a catalyst B to contact the feedstock with the catalyst A and the catalyst B in turn, wherein the catalyst A is a nickel-based catalyst, the catalyst B is at least one selected from the group consisting of palladium-based catalysts and copper-based catalysts, and a weight ratio of the catalyst A loaded to the catalyst B loaded is from 0.5:1 to 5:1.

    摘要翻译: 本发明公开了在合并床中进行苯乙烯选择性氢化的方法,该方法包括在氢化反应条件下,将含有苯基乙炔和苯乙烯的烃馏分原料通过含有催化剂A和 依次将原料与催化剂A和催化剂B接触的催化剂B,其中催化剂A是镍基催化剂,催化剂B是选自钯基催化剂和铜基催化剂中的至少一种 催化剂,负载催化剂B的催化剂A的重量比为0.5:1〜5:1。

    Micro azimuth-level detector based on micro electro-mechanical systems and a method for determination of attitude
    3.
    发明授权
    Micro azimuth-level detector based on micro electro-mechanical systems and a method for determination of attitude 失效
    基于微机电系统的微方位检测器和姿态测定方法

    公开(公告)号:US06813584B2

    公开(公告)日:2004-11-02

    申请号:US10094991

    申请日:2002-03-12

    IPC分类号: G01C1700

    CPC分类号: G01C17/28 G01C17/38

    摘要: A system and method for determining attitude using triaxial micro electro-mechanical accelerometer-magnetometer sensors. The triaxial accelerometer-magnetometer sensors measure the triaxial components of the local gravity and magnetic field along three sensing axes of the sensors. The misalignment of the components due to nonorthogonal triaxial assembling of the sensors is estimated via performing three optical alignments and is further compensated in the sensing outputs. A micro-cube with three orthogonal coated mirrors is fixed on the circuit board of the system for implementing the optical alignments. The compensated sensing components are processed to figure out the attitude using Orientation Cosine Conversion of the local gravity and magnetic field. The computation for determining the attitude is based on the inverse tangent of the ratio of the processed components, which is more precise than the computation using the absolute values of the components.

    摘要翻译: 使用三轴微机电加速度计 - 磁力计传感器确定姿态的系统和方法。 三轴加速度计 - 磁力计传感器沿着传感器的三个感测轴测量局部重力和磁场的三轴分量。 通过执行三个光学对准来估计由于传感器的非正交三轴组装导致的部件的未对准,并且在感测输出中进一步补偿。 具有三个正交涂覆反射镜的微立方体固定在用于实现光学对准的系统的电路板上。 利用局部重力和磁场的取向余弦转换来处理补偿的感测部件,以计算出姿态。 用于确定姿态的计算基于处理部件的比率的反正切,其比使用部件的绝对值的计算更精确。