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    • 71. 发明授权
    • Dispersed anion-modified iron oxide catalysts for hydroconversion
processes
    • 用于加氢转化法的分散的阴离子改性的氧化铁催化剂
    • US5866501A
    • 1999-02-02
    • US609759
    • 1996-02-23
    • Vivek R. PradhanAlfred G. ComolliLap-Keung Lee
    • Vivek R. PradhanAlfred G. ComolliLap-Keung Lee
    • B01J23/74B01J23/745B01J23/84B01J23/881B01J27/053B01J27/185B01J27/19B01J35/12C10G1/00C10G1/08C10G1/10C10G47/02C10G47/26C10G49/12C10G65/10B01J27/043C10G1/06
    • B01J27/053B01J23/745B01J23/881B01J27/1853B01J35/12C10G1/002C10G1/006C10G1/086C10G1/10C10G47/02C10G47/26C10G49/12C10G65/10B01J23/74B01J23/84B01J27/19
    • A dispersed fine-sized anion-modified iron oxide slurry catalyst having high surface area exceeding about 100 m.sup.2 /gm and high catalytic activity, and which is useful for hydrogenation and hydroconversion reactions for carbonaceous feed materials is disclosed. The catalyst is synthesized by rapid aqueous precipitation from saturated salt solutions such as ferric alum or ferric sulfate, and is promoted with at least one active metal such as cobalt, molybdenum, nickel, tungsten and combinations thereof. The iron-based dispersed catalysts are modified during their preparation with anionic modifiers such as molybdate (MoO.sub.4.sup.2-), phosphate (PO.sub.4.sup.3-), sulfate (SO.sub.4.sup.2-), or tungstate (WO.sub.4.sup.2-). The resulting catalyst usually has primary particle size smaller than about 50 Angstrom units, and may be used in the form of a gel or wet cake which can be easily mixed with a hydrocarbonaceous feed material such as coal, heavy petroleum fractions, mixed waste plastics or mixtures thereof. Alternatively, the catalyst can be dried and/or calcined so as to be in a fine dry particulate form suitable for adding to the feed material. The invention includes methods for making the catalyst and processes for using the catalyst for hydroprocessing of the carbonaceous feed materials.
    • 公开了一种具有超过约100m 2 / gm的高表面积和高催化活性的分散的细尺寸阴离子改性氧化铁浆料催化剂,其可用于含碳原料的氢化和加氢转化反应。 通过从饱和盐溶液如三价铁或硫酸铁中的快速含水沉淀合成催化剂,并用至少一种活性金属如钴,钼,镍,钨及其组合进行促进。 铁基分散催化剂在制备过程中用钼酸盐(MoO42-),磷酸盐(PO43-),硫酸盐(SO42-)或钨酸盐(WO42-))等阴离子改性剂进行改性。 所得到的催化剂通常具有小于约50埃单位的初级粒度,并且可以以凝胶或湿饼的形式使用,其可以容易地与诸如煤,重质石油馏分,混合废塑料的烃类进料混合,或 其混合物。 或者,可以将催化剂干燥和/或煅烧成适于添加到进料中的细干燥颗粒形式。 本发明包括制备催化剂的方法和使用该催化剂加氢处理含碳原料的方法。
    • 79. 发明授权
    • Particulate solids for catalyst supports and heat transfer materials
    • 用于催化剂载体和传热材料的颗粒状固体
    • US5395813A
    • 1995-03-07
    • US60334
    • 1993-05-11
    • LeRoy R. ClavennaStephen M. DavisRocco A. FiatoGeoffrey R. Say
    • LeRoy R. ClavennaStephen M. DavisRocco A. FiatoGeoffrey R. Say
    • B01J21/06B01J23/83C01B3/40B01J23/10B01J23/74B01J35/02
    • B01J21/066B01J23/83C01B3/40C01B2203/1052C01B2203/1064C01B2203/1082Y02P20/52
    • A particulate, precalcined low silica content zirconia, especially one stabilized with yttria, is useful as a catalyst support or as a heat transfer solids component for conducting chemical reactions at high temperature, in oxidizing, reducing or hydrothermal conditions, especially in syn gas operations. An admixture of precalcined particulate low silica content zirconia, particularly a low silica content yttria-stabilized zirconia, is employed in a preferred embodiment as a heat transfer solid, in concentrations ranging generally from about 10 wt. % to about 99.9 wt. %, with a particulate catalyst, notably a nickel-on-alumina catalyst, in concentration ranging generally from about 0.1 wt. % to about 90 wt. %. Such an admixture provides a particularly useful catalytic contact mass in high temperature oxidizing, reducing and hydrothermal environments, notably in conducting synthesis gas generation operations. This type of bed promotes continuous, highly efficient heat and mass transfer within the reacting gas phase. The presence of the heat transfer solid as a bed component maintains excellent bed fluidization characteristics, suppressing the normal tendency of the catalyst to sinter or agglomerate; tendencies which promote defluidization of the bed. Moreover, the heat transfer particles of the bed are highly attrition resistant, and are chemically compatible with the catalyst particles of the admixture.
    • 颗粒状预煅烧的低二氧化硅含量的氧化锆,特别是用氧化钇稳定的氧化锆,可用作催化剂载体或用作在高温,氧化,还原或水热条件下进行化学反应的传热固体组分,特别是在合成气操作中。 预先煅烧的颗粒状低二氧化硅含量的氧化锆,特别是低二氧化硅含量氧化钇稳定的氧化锆的混合物在优选的实施方案中用作传热固体,浓度通常为约10重量% %至约99.9wt。 %的颗粒催化剂,特别是镍 - 氧化铝催化剂,其浓度通常为约0.1wt。 %至约90wt。 %。 这种混合物在高温氧化,还原和水热环境中特别是在进行合成气生成操作中提供特别有用的催化接触物质。 这种类型的床促进在反应气相内的连续,高效的热和质量传递。 作为床成分的传热固体的存在保持了优异的床流化特性,抑制了催化剂烧结或附聚的正常趋势; 促进床层流变的趋势。 此外,床的传热颗粒是高度耐磨性的,并且与混合物的催化剂颗粒化学相容。