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    • 2. 发明授权
    • Catalyst support and catalyst and process for producing the same
    • 催化剂载体和催化剂及其制备方法
    • US06221805B1
    • 2001-04-24
    • US09256234
    • 1999-02-24
    • Koichi YamashitaShinji TsujiNaoto MiyoshiOji KunoMasahiko SugiyamaKazumasa TakatoriTakao TaniNobuo Kamiya
    • Koichi YamashitaShinji TsujiNaoto MiyoshiOji KunoMasahiko SugiyamaKazumasa TakatoriTakao TaniNobuo Kamiya
    • B01J2304
    • B01D53/945B01J21/04B01J37/0045B01J37/0236Y02T10/22
    • A catalyst support, a catalyst using the catalyst support and a process for producing the same are disclosed. For instance, the catalyst support includes a composite oxide powder produced by spraying and burning a W/O type emulsion, the W/O type emulsion including an aqueous solution dispersed in an organic solvent, the aqueous solution containing aluminum as a major component and at least one co-metallic element in addition to the aluminum. Thus, the catalyst support can be produced less expensively without using any expensive alkoxide. Further, due to the spraying and burning, the composite oxide powder is composed of porous hollow particles which have a very thin shell thickness of dozens of nanometers, and makes the catalyst support which is amorphous and exhibits a large specific surface area. Hence, the catalyst support can maintain the large specific surface area even after a high-temperature durability test. Furthermore, the composite oxide powder includes the co-metallic element which is composited in such a highly dispersed manner that the agglomerated sulfates are less likely to be produced. Therefore, the catalyst support is inhibited from being poisoned by sulfur.
    • 公开了催化剂载体,使用催化剂载体的催化剂及其制备方法。 例如,催化剂载体包括通过喷雾和燃烧W / O型乳液而制备的复合氧化物粉末,W / O型乳液包括分散在有机溶剂中的水溶液,含有铝作为主要成分的水溶液, 除了铝之外还有至少一种共金属元素。 因此,不用任何昂贵的醇盐就可以不昂贵地生产催化剂载体。 此外,由于喷涂和燃烧,复合氧化物粉末由具有非常薄的几十纳米的壳厚度的多孔中空颗粒组成,并使催化剂载体是无定形的并且具有大的比表面积。 因此,即使在高温耐久试验之后,催化剂载体也能保持较大的比表面积。 此外,复合氧化物粉末包括以非常分散的方式复合的共金属元素,使得不太可能生产聚集的硫酸盐。 因此,抑制催化剂载体被硫中毒。