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    Processes for regenerating catalysts useful in Fischer-Tropsch processes
    4.
    发明授权
    Processes for regenerating catalysts useful in Fischer-Tropsch processes 有权

    公开(公告)号：US10099213B2

    公开(公告)日：2018-10-16

    申请号：US15352736

    申请日：2016-11-16

    申请人： CLARIANT CORPORATION

    发明人： Jae Hyung Kim ,  Doug Huelsman ,  Jeffery L. Braden

    IPC分类号： B01J38/00 ,  B01J38/12 ,  B01J23/75 ,  B01J38/04 ,  B01J38/10 ,  C10G2/00 ,  B01J38/56 ,  C07C1/04

    摘要： The present disclosure relates to processes for regenerating catalysts. In certain aspects, a process for regenerating a deactivated catalyst disposed in a first organic material includes removing a substantial portion of the first organic material from the catalyst to provide a dewaxed catalyst having less than about 40 wt % (e.g., less than about 20%) organic material disposed thereon. The dewaxed catalyst is then contacted with a flow of a substantially inert gas at a temperature of at least about 200° C. to provide an inert gas-treated catalyst having less than about 10 wt % organic material disposed thereon. The inert gas-treated catalyst is then contacted with an oxygen-containing gas at a temperature of at least about 200 ° C. to form an oxidized catalyst (e.g., having less than 2 wt % carbonaceous material disposed thereon). The oxidized catalyst is then contacted with a hydrogen-containing gas at a temperature of at least about 200° C. to form a regenerated catalyst. Finally, the regenerated catalyst can be disposed in a second organic material. The regenerated catalysts can be useful, for example, in Fischer-Tropsch processes.

    Method of shutting down a reactor
    7.
    发明授权
    Method of shutting down a reactor 有权

    公开(公告)号：US10035119B2

    公开(公告)日：2018-07-31

    申请号：US14205554

    申请日：2014-03-12

    申请人： Clariant Corporation

    发明人： Vladimir Fridman ,  Sunil S. Panditrao

    IPC分类号： B01J8/02 ,  B01J8/00 ,  B01J8/04 ,  B01J23/26 ,  B01J38/04

    CPC分类号： B01J8/008 ,  B01J8/0285 ,  B01J8/0496 ,  B01J23/26 ,  B01J38/04 ,  B01J2208/00371 ,  B01J2208/00637

    摘要： A procedure for shutting down a dehydrogenation reactor having a catalyst bed with a chromium-containing catalyst operating at a first elevated temperature comprises cooling the catalyst bed with a first cooling gas to a second elevated temperature lower than the first elevated temperature, removing the first cooling gas, introducing a reducing gas to the catalyst bed, cooling the catalyst bed with a second cooling gas from the second elevated temperature to a third elevated temperature, removing the reducing gas, cooling the catalyst bed to a fourth elevated temperature, and introducing air to cool the catalyst to ambient temperature, whereby the dehydrogenation reactor is shut down. The second cooling gas may be the same as, or different from, the reducing gas. Moreover, the reducing gas may be purged from the reactor by a third cooling gas.

    SOLID PHOSPHORIC ACID CATALYSTS
    9.
    发明申请
    SOLID PHOSPHORIC ACID CATALYSTS 审中-公开

    公开(公告)号：US20180036720A1

    公开(公告)日：2018-02-08

    申请号：US15661088

    申请日：2017-07-27

    申请人： CLARIANT CORPORATION

    发明人： Malati Raghunath ,  Aaron Miller ,  Claus G. Lugmair ,  Anthony Volpe

    IPC分类号： B01J27/182 ,  C07C2/18 ,  C07C2/70 ,  B01J35/02

    CPC分类号： B01J27/182 ,  B01J27/14 ,  B01J27/16 ,  B01J35/02 ,  B01J37/0009 ,  C07C2/00 ,  C07C2/18 ,  C07C2/70 ,  C07C2527/173

    摘要： The present disclosure relates to solid phosphoric acid (SPA) catalysts useful in the conversion of hydrocarbons, such as the oligomerization of olefins, to methods for making such SPA catalysts, and to methods for converting hydrocarbons by contacting hydrocarbons with such catalyst. For example, in certain embodiments, the disclosure provides a calcined solid phosphoric acid catalyst composition that includes phosphoric acid and silicon phosphates, and in which (i) one or more promoters each selected from the group consisting of boron, bismuth, tungsten, silver and lanthanum is present; (ii) the composition is a calcined product of a formable mixture including silica-alumina clay, silica fiber and/or silica alumina fiber; or (iii) the composition is a calcined product of a formable mixture including fumed silica.