RECONSTITUTED DEHYDROGENATION CATALYST SHOWING SLOWED ACTIVITY LOSS WHEN COMPARED WITH FRESH CATALYST
    68.
    发明申请
    RECONSTITUTED DEHYDROGENATION CATALYST SHOWING SLOWED ACTIVITY LOSS WHEN COMPARED WITH FRESH CATALYST 审中-公开
    与新鲜催化剂比较时,重新发现的脱氢催化剂显示出缓慢的活性损失

    公开(公告)号:US20140371501A1

    公开(公告)日:2014-12-18

    申请号:US14366611

    申请日:2013-02-06

    IPC分类号: B01J23/62 C07C5/32

    摘要: A process for dehydrogenating alkane or alkylaromatic compounds comprising contacting the given compound and a dehydrogenation catalyst in a fluidized bed. The dehydrogenation catalyst is prepared from an at least partially deactivated platinum/gallium catalyst on an alumina-based support that is reconstituted by impregnating it with a platinum salt solution, then calcining it at a temperature from 400° C. to 1000° C., under conditions such that it has a platinum content ranging from 1 to 500 ppm, based on weight of catalyst; a gallium content ranging from 0.2 to 2.0 wt %; and a platinum to gallium ratio ranging from 1:20,000 to 1:4. It also has a Pt retention that is equal to or greater than that of a fresh catalyst being used in a same or similar catalytic process.

    摘要翻译: 一种使烷烃或烷基芳族化合物脱氢的方法,包括在流化床中使给定化合物和脱氢催化剂接触。 脱氢催化剂由氧化铝基载体上的至少部分失活的铂/镓催化剂制备,其通过用铂盐溶液浸渍而重新构成,然后在400℃至1000℃的温度下煅烧, 在其基于催化剂重量的铂含量为1至500ppm的条件下进行; 镓含量范围为0.2-2.0重量%; 铂与镓之比为1:20,000至1:4。 它还具有等于或大于在相同或相似催化过程中使用的新鲜催化剂的Pt保留。

    METHOD OF MANUFACTURING ORDERED INTERMETALLIC CATALYSTS
    70.
    发明申请
    METHOD OF MANUFACTURING ORDERED INTERMETALLIC CATALYSTS 审中-公开
    制造订购的中间体催化剂的方法

    公开(公告)号:US20130150231A1

    公开(公告)日:2013-06-13

    申请号:US13692410

    申请日:2012-12-03

    IPC分类号: B01J37/34 B01J23/62

    摘要: At least one embodiment includes a method for fabricating a catalyst comprising a colloidal suspension of nanoparticles, the nanoparticles comprising intermetallics of two or more metals exhibiting long range superlattice crystal ordering. The method comprising the steps of: producing a bulk target of the intermetallics of two or more metals exhibiting long range crystal ordering and submerging the target in a solvent. A pulsed laser is used to ablate bulk target material and to produce nanoparticle of the intermetallics of two or more metals exhibiting long range crystal ordering. At least one embodiment includes a catalyst made with the method. The catalyst can exhibit some desirable properties. For example, the catalyst may remain suspended in solution, essentially without surface modification by ionic compounds. Furthermore, the concentration of elements other than those which comprise the solvent or the intermetallic compound may be less than about 1 ppm.

    摘要翻译: 至少一个实施方案包括用于制造包含纳米颗粒的胶态悬浮液的催化剂的方法,所述纳米颗粒包含两种或更多种呈现长范围超晶格晶体排列的金属的金属间化合物。 该方法包括以下步骤:制备两种或多种金属间化合物的体积目标物,其显示长程晶体排序并将靶浸入溶剂中。 使用脉冲激光来消融体目标材料并产生呈现长程晶体排列的两种或多种金属的金属间化合物的纳米颗粒。 至少一个实施方案包括用该方法制备的催化剂。 催化剂可以表现出一些期望的性质。 例如,催化剂可以保持悬浮在溶液中,基本上没有通过离子化合物的表面改性。 此外,除了包含溶剂或金属间化合物的元素之外的元素的浓度可以小于约1ppm。