Apparatus and method for predicting engine test performance from bench test data
    4.
    发明申请
    Apparatus and method for predicting engine test performance from bench test data 审中-公开
    从台架试验数据预测发动机试验性能的装置和方法

    公开(公告)号:US20090240640A1

    公开(公告)日:2009-09-24

    申请号:US12381803

    申请日:2009-03-17

    CPC分类号: G01N33/2888 G01N17/043

    摘要: An apparatus for evaluating deposit formation characteristics of lubricant samples. The apparatus includes a reactor chamber having a closed first end and a second end, said closed first end of said reactor chamber forming a lubricant sump and said second end open to the atmosphere, an electric heater for heating a test coupon positioned thereon, said electric heater positioned within said reactor chamber, above said lubricant sump, an air supply tube, said air supply tube having a first end in fluid communication with a source of air and a second end, said second end positioned adjacent the test coupon, said air supply tube having a sample orifice located between said first end and said second end of said air supply tube and a lubricant supply tube, said lubricant supply tube having a first end positioned within said lubricant sump and in fluid communication with a source of lubricant and a second end, said second end positioned within said sample orifice of said air supply tube. A method of predicting lubricant deposit formation in an end use engine test and a method for predicting whether a candidate lubricant sample will pass an End Use Test are also provided.

    摘要翻译: 用于评估润滑剂样品的沉积物形成特性的装置。 该装置包括具有封闭的第一端和第二端的反应室,所述反应器室的所述封闭的第一端形成润滑油槽,而所述第二端敞开于大气;电加热器,用于加热位于其上的试样,所述电 位于所述反应器室内的加热器,位于所述润滑油池上方,空气供应管,所述空气供应管具有与空气源流体连通的第一端和第二端,所述第二端邻近测试试样定位,所述空气供应 管,其具有位于所述空气供应管的所述第一端和所述第二端之间的样品孔和润滑剂供应管,所述润滑剂供应管具有位于所述润滑油槽内并与润滑剂源流体连通的第一端和第二 所述第二端位于所述空气供应管的所述样品孔内。 还提供了在最终用途发动机试验中预测润滑剂沉积物形成的方法和预测候选润滑剂样品是否将通过最终用途试验的方法。

    Acidic promotion of transition metal sulfide catalysts for selective
hydrogenation
    7.
    发明授权
    Acidic promotion of transition metal sulfide catalysts for selective hydrogenation 失效
    酸性促进过渡金属硫化物催化剂用于选择性氢化

    公开(公告)号:US4950386A

    公开(公告)日:1990-08-21

    申请号:US231939

    申请日:1988-08-15

    IPC分类号: C10G45/46

    CPC分类号: C10G45/46

    摘要: It has now been discovered that hydrocarbon feeds containing a polycyclic aromatic compound or mixtures thereof can be selectively hydrogenated by contacting the feed with a transition metal catalyst and hydrogen in the presence of an acid to provide a hydrocarbon mixture in which the aromatic content consists substantially of mono- and di-aromatic compounds. Useful acids include Lewis acids and acids having a pKa in the range of 0 to about -10.

    摘要翻译: 现在已经发现,含有多环芳族化合物或其混合物的烃进料可以通过在酸存在下使进料与过渡金属催化剂和氢接触来选择性氢化,以提供烃混合物,其中芳烃含量基本上由 单和二芳族化合物。 有用的酸包括路易斯酸和pKa在0至约-10范围内的酸。