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    Sulfur removal from molecular-sieve catalyst
    31.
    发明授权
    Sulfur removal from molecular-sieve catalyst 失效
    从分子筛催化剂除硫

    公开(公告)号：US5270272A

    公开(公告)日：1993-12-14

    申请号：US889689

    申请日：1992-05-26

    Applicant: Leonid Galperin ,  Robert S. Haizmann

    Inventor： Leonid Galperin ,  Robert S. Haizmann

    IPC: B01J29/90 ,  B01J38/08 ,  C10G35/095 ,  B01J29/38 ,  B01J38/44

    CPC classification number: B01J29/90 ,  B01J38/08 ,  C10G35/095 ,  Y10S502/517

    Abstract: A sulfur-sensitive catalyst which has been deactivated by accumulating sulfur on the catalyst is desulfurized by contact with ammonia at high temperature. The technique is particularly effective for reforming catalysts containing a large-pore zeolite which are selective for dehydrocyclization of paraffins. The desulfurization may be combined with regeneration for coke removal from the catalyst.

    Abstract translation: 已经通过在催化剂上积累硫而失活的硫敏感催化剂通过在高温下与氨接触进行脱硫。 该技术对于重整含有对链烷烃的脱氢环化有选择性的大孔沸石的催化剂是特别有效的。 脱硫可以与从催化剂中除去焦炭的再生相结合。

    A METHOD OF REDUCING NITROGEN OXIDE COMPOUNDS
    34.
    发明申请
    A METHOD OF REDUCING NITROGEN OXIDE COMPOUNDS 审中-公开

    公开(公告)号：US20190282959A1

    公开(公告)日：2019-09-19

    申请号：US16335399

    申请日：2017-09-25

    Applicant: SHELL OIL COMPANY

    Inventor： Wenzhong ZHANG ,  Geert Marten BAKKER

    IPC: B01D53/96 ,  B01D53/86 ,  B01J38/08 ,  B01J21/06 ,  B01J23/30 ,  B01J23/28 ,  B01J23/22 ,  B01J21/20 ,  B01J23/92

    Abstract: The invention provides a method of reducing the amount of nitrogen oxide components in a process gas stream comprising: a) contacting a deNOX catalyst with the process gas in the presence of ammonia which results in the conversion of nitrogen oxide components as well as a decline in the NOX conversion over the deNOX catalyst; and b) regenerating the deNOX catalyst to improve the NOX conversion by contacting the deNOX catalyst at a temperature in the range of from 250 to 390° C. with a flow of ammonia that is reduced relative to the flow of ammonia in step a) and process gas, air or a mixture thereof.

    Fuel cell catalyst regeneration
    38.
    发明授权
    Fuel cell catalyst regeneration 有权
    燃料电池催化剂再生

    公开(公告)号：US07981825B2

    公开(公告)日：2011-07-19

    申请号：US12056562

    申请日：2008-03-27

    Applicant: Tim Z. Hossain ,  Daniel E. Posey

    Inventor： Tim Z. Hossain ,  Daniel E. Posey

    IPC: B01J20/34 ,  B01J20/20 ,  B01J23/90 ,  B01J38/04 ,  B01J38/10 ,  B01J38/08

    CPC classification number: H01M8/18 ,  H01M4/90 ,  H01M2008/1095 ,  Y02E60/528

    Abstract: Systems and methods that facilitate operating proton exchange membrane (PEM) fuel cells are provided. The methods can involve contacting a reducing agent comprising a mixture of hydrogen and nitrogen, or a reducing plasma with a cathode catalyst of a proton exchange membrane fuel cell to reduce the cathode catalyst. The systems employ a fuel supply component that supplies fuel to the proton exchange membrane fuel cell; and a regeneration component that provides a reducing agent comprising a mixture of hydrogen and nitrogen, or a reducing plasma to a cathode catalyst of the proton exchange membrane fuel cell to reduce the cathode catalyst.

    Abstract translation: 提供了促进操作质子交换膜（PEM）燃料电池的系统和方法。 该方法可以包括将包含氢和氮的混合物的还原剂或还原等离子体与质子交换膜燃料电池的阴极催化剂接触以减少阴极催化剂。 该系统采用向质子交换膜燃料电池供应燃料的燃料供应部件; 以及再生成分，其向质子交换膜燃料电池的阴极催化剂提供包含氢和氮的混合物的还原剂或还原剂，以还原阴极催化剂。

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