Sulfur removal
    5.
    发明授权
    Sulfur removal 失效
    除硫

    公开(公告)号:US5516421A

    公开(公告)日:1996-05-14

    申请号:US291810

    申请日:1994-08-17

    摘要: A process for reducing the amount of down time or yield loss associated with a sulfur upset when using a sulfur-sensitive catalyst. The process comprises applying a metallic coat, cladding, plating or paint to a reactor system which comprises a base metal, so as to form an adherent metallic layer on the base metal and thereby produce a metal-coated reactor system; loading a sulfur-sensitive catalyst into the system; and, after a sulfur upset, using a process comprising sulfur stripping to remove sulfur contaminants from the metal-coated reactor system.

    摘要翻译: 当使用硫敏感催化剂时,减少与硫磺不适相关的停机时间或产量损失量的方法。 该方法包括将金属涂层,包层,电镀或涂料施加到包括贱金属的反应器系统上,以在贱金属上形成粘附金属层,从而制备金属涂覆的反应器系统; 将硫敏感催化剂加载到体系中; 并且在硫磺镦粗之后,使用包含硫汽提的方法从金属涂覆的反应器系统中除去硫污染物。

    Reverse-graded catalyst systems for hydrodemetalation and
hydrodesulfurization
    8.
    发明授权
    Reverse-graded catalyst systems for hydrodemetalation and hydrodesulfurization 失效
    用于加氢脱钙和加氢脱硫的反向梯度催化剂体系

    公开(公告)号:US4789462A

    公开(公告)日:1988-12-06

    申请号:US913837

    申请日:1986-09-29

    IPC分类号: C10G45/08 C10G65/04 C10G45/04

    CPC分类号: C10G65/04 C10G45/08

    摘要: We provide reverse-graded catalyst systems which are capable of removing metals and sulfur from a hydrocarbon feedstock. They comprise two or more catalyst layers in which at least two successive catalyst layers characterized as having decreasing desulfurization activity, and increasing average macropore diameter in the direction of hydrocarbon flow. We also disclose a process for using them.

    摘要翻译: 我们提供能够从烃原料中除去金属和硫的反向分级催化剂体系。 它们包括两个或更多个催化剂层,其中至少两个连续的催化剂层的特征在于具有降低的脱硫活性,并且在烃流动方向上增加平均大孔直径。 我们还披露了一个使用它们的过程。