In situ theta alumina coated monolithic catalyst supports
    1.
    发明授权
    In situ theta alumina coated monolithic catalyst supports 失效
    原位θ氧化铝涂层整体催化剂载体

    公开(公告)号:US06903051B2

    公开(公告)日:2005-06-07

    申请号:US10121482

    申请日:2002-04-12

    CPC分类号: B01J35/04 B01J21/04

    摘要: The invention provides a monolithic catalyst support for hydrogenation and hydrotreating and in particular for selective hydrogenation of pyrolysis gasoline. The monolithic catalyst includes (i) a multicellular monolith body, preferably having a honeycomb structure, most preferably a honeycomb structure made of cordierite, the honeycomb structure having an inlet end, an outlet end, and a multiplicity of mutually adjoining cells extending along the length of the body from the inlet end to the outlet end, the cells being separated from one another by porous walls, and, (ii) a coating consisting of theta alumina synthesized in situ on the multicellular monolith body. The in situ theta alumina is strongly bonded with the multicellular monolith body and comprises at least 50% by weight of the washcoat layer, and preferably greater than 90% by weight.

    摘要翻译: 本发明提供了用于氢化和加氢处理的整体式催化剂载体,特别是用于热解汽油的选择性氢化。 整体式催化剂包括(i)多细胞整体体,优选具有蜂窝状结构,最优选由堇青石制成的蜂窝结构体,所述蜂窝结构具有入口端,出口端和沿着长度延伸的多个相互邻接的细胞 从入口端到出口端,细胞通过多孔壁彼此分离,并且(ii)由在多细胞整体体上原位合成的θ氧化铝组成的涂层。 原位θ氧化铝与多细胞整体体强结合,并且包含至少50重量%的修补基面涂层,优选大于90重量%。

    Structured materials for purification of liquid streams and method of making and using same
    2.
    发明授权
    Structured materials for purification of liquid streams and method of making and using same 失效
    用于液体流净化的结构材料及其制造和使用方法

    公开(公告)号:US06200483B1

    公开(公告)日:2001-03-13

    申请号:US09413717

    申请日:1999-10-05

    IPC分类号: C02F142

    CPC分类号: B01J47/00 C02F1/42

    摘要: A monolithic structure having active material that includes at least inorganic ion exchange material, for purifying a liquid stream of contaminants such as heavy metals, chlorine, volatile organics, pesticides, herbicides, and/or parasites, etc. The structure has an inlet end and an outlet end and a multiplicity of cells extending from inlet to outlet end. The cells are separated from one another by porous walls that are alternatively plugged at each end such that a liquid stream that enters the structure, enters through the unplugged cells at the inlet end and passes through porous walls to be purified by the active material, and thereafter passes out of the structure through unplugged cells at the outlet end. One method of making the structure involves applying active material as a coating on an alternately plugged substrate. The average particle size of the active material after calcination is greater than the average cell wall pore size of the substrate. The coated substrate is dried at no greater than 200° C., and calcined at no greater than 650° C., to bond the active material to the substrate. The structure can be shaped from a forming mixture of the active materials.

    摘要翻译: 具有至少包含无机离子交换材料的活性材料的整体结构,用于净化诸如重金属,氯,挥发性有机物,杀虫剂,除草剂和/或寄生虫等杂质的液体流。该结构具有入口端和 出口端和从入口到出口端延伸的多个单元。 细胞通过多孔壁彼此分开,多孔壁可替代地插入每一端,使得进入结构的液体流通过入口端处的未堵塞的细胞进入并穿过多孔壁以被活性物质净化,以及 然后通过出口端的未插入电池从结构中流出。 制造该结构的一种方法包括将活性材料作为涂层施加在交替堵塞的基底上。 煅烧后的活性物质的平均粒径大于基材的平均泡孔壁孔径。 将涂覆的基材在不超过200℃下干燥,并在不高于650℃下煅烧以将活性材料粘合到基材上。 该结构可以由活性材料的形成混合物成型。