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    Method for removing sulfur to ultra low levels for protection of reforming catalysts
    16.
    发明授权
    Method for removing sulfur to ultra low levels for protection of reforming catalysts 失效
    将硫除去至超低水平以保护重整催化剂的方法

    公开(公告)号：US5322615A

    公开(公告)日：1994-06-21

    申请号：US804600

    申请日：1991-12-10

    申请人： Dennis L. Holtermann ,  Warren E. Brown

    发明人： Dennis L. Holtermann ,  Warren E. Brown

    IPC分类号： B01J20/10 ,  B01J23/40 ,  C07B61/00 ,  C07C5/41 ,  C07C15/02 ,  C10G25/00 ,  C10G35/06 ,  C10G45/06 ,  C10G45/10 ,  C10G61/06 ,  C10G67/06 ,  C10G69/08 ,  C10G45/00

    CPC分类号： C10G69/08 ,  C10G67/06

    摘要： Provided is a method for removing residual sulfur from a hydrotreated naphtha feedstock. The process comprises contacting the naphtha feedstock with a first solid sulfur sorbent comprising a metal on a support to thereby form a first effluent. The effluent is then contacted with a sulfur conversion catalyst comprising a Group VIII metal in the presence of hydrogen, with the resulting effluent being contacted with a second solid sulfur sorbent containing a Group IA or IIA metal, to thereby lower the sulfur content of the feedstock to less than 10 ppb, and to as low as 1 ppb or less. The feedstock can then be safely used with highly sulfur sensitive zeolitic reforming catalysts without adversely affecting the useful life of the catalyst.

    摘要翻译： 提供了从加氢处理的石脑油原料中除去残留硫的方法。 该方法包括使石脑油原料与载体上包含金属的第一固体硫吸附剂接触，从而形成第一流出物。 然后在氢的存在下，将流出物与包含VIII族金属的硫转化催化剂接触，所得流出物与含有IA或IIA族金属的第二固体硫吸附剂接触，从而降低原料的硫含量 至少于10ppb，低至1ppb或更低。 然后可以将原料安全地用于高度敏感的沸石重整催化剂，而不会不利地影响催化剂的使用寿命。

    Sulfur removal systems for protection of reforming crystals
    20.
    发明授权
    Sulfur removal systems for protection of reforming crystals 失效
    用于保护重整晶体的除硫系统

    公开(公告)号：US5439583A

    公开(公告)日：1995-08-08

    申请号：US243

    申请日：1993-01-04

    申请人： Richard C. Robinson ,  Robert L. Jacobson ,  Harris E. Kluksdahl ,  William A. Blanton ,  Dennis L. Holtermann ,  Leslie A. Field

    发明人： Richard C. Robinson ,  Robert L. Jacobson ,  Harris E. Kluksdahl ,  William A. Blanton ,  Dennis L. Holtermann ,  Leslie A. Field

    IPC分类号： C10G59/02 ,  C10G69/08 ,  C10G35/06

    CPC分类号： C10G59/02 ,  C10G69/08

    摘要： A process is disclosed for removing residual sulfur from a hydrotreated naphtha feedstock. The feedstock is contacted with molecular hydrogen under reforming conditions in the presence of a less sulfur sensitive reforming catalyst to convert trace sulfur compounds to H.sub.2 S, and to form a first effluent. The first effluent is contacted with a solid sulfur sorbent to remove the H.sub.2 S and form a second effluent. The second effluent is then contacted with a highly selective reforming catalyst under severe reforming conditions. Also disclosed is a method using a potassium containing sulfur sorbent made from nitrogen-free potassium compounds.

    摘要翻译： 公开了从加氢处理的石脑油原料中除去残余硫的方法。 在重硫条件下，在较少硫敏感的重整催化剂的存在下，原料与分子氢接触，以将痕量硫化合物转化为H 2 S，并形成第一流出物。 将第一流出物与固体硫吸附剂接触以除去H 2 S并形成第二流出物。 然后在严格的重整条件下将第二流出物与高度选择性的重整催化剂接触。 还公开了使用由无氮钾化合物制成的含钾硫吸附剂的方法。