Catalyst and process for selective hydrogenation of alkynes and dienes
    231.
    发明公开
    Catalyst and process for selective hydrogenation of alkynes and dienes 审中-公开
    Katalysator和Verfahren zur selektiven Hydrierung von Alkinen und Dienen

    公开(公告)号:EP2204235A1

    公开(公告)日:2010-07-07

    申请号:EP08172302.5

    申请日:2008-12-19

    CPC classification number: B01J37/0201 B01J23/44 B01J23/66 B01J27/224

    Abstract: Selective hydrogenation process comprising:
    • contacting in the presence of hydrogen an hydrocarbon feedstock comprising at least one unsaturated compound selected from the group consisting of alkynes and dienes and mixtures thereof with a first hydrogenation catalyst in a first reaction zone to produce a first product stream having a reduced proportion of alkynes and/or dienes ; and
    • contacting the first product stream in a second reaction zone having an inlet and an outlet, in the presence of optional additional hydrogen, with a second hydrogenation catalyst to produce a second product stream,

    wherein, the first hydrogenation catalyst comprises :
    • a first constituent of at least one metal or metal-based component selected from the elements consisting of Groups 1-10 of the Periodic Table of Elements (new IUPAC notation) and optionally a second constituent of at least one metal or metal-based component selected from the elements consisting of Groups 11-14 of the Periodic Table of Elements, and

    said first constituent and optional second constituent are on a carrier made essentially of SiC or of a crystalline silicate.
    Hydrogenation catalyst comprising:
    • a first constituent of at least one metal or metal-based component selected from the elements consisting of Groups 1-10 of the Periodic Table of Elements (new IUPAC notation) and a second constituent of at least one metal or metal-based component selected from the elements consisting of Groups 11-14 of the Periodic Table of Elements, and
    • said first constituent and second constituent are on a carrier made essentially of a crystalline silicate or of SiC,
    • the second constituent is optional if the carrier is made essentially of SiC.

    Abstract translation: 选择性氢化方法包括:在氢的存在下,在第一反应区中将包含至少一种选自炔烃和二烯的不饱和化合物及其与第一氢化催化剂的混合物的烃原料接触以产生第一产物流 炔和/或二烯的比例降低; 并且在第二反应区中使第一产物流与存在任选的另外的氢的入口和出口接触第二加氢催化剂以产生第二产物流,其中第一氢化催化剂包括: 选自由元素周期表第1-10族(新的IUPAC符号)组成的元素中的至少一种金属或金属基成分的第一组分和任选的至少一种选自金属或金属的组分的第二组分 由元素周期表第11-14族组成的元素和所述第一组分和任选的第二组分在基本上由SiC或结晶硅酸盐制成的载体上。 氢化催化剂包括:至少一种选自元素周期表第1-10族元素的金属或金属基成分的第一组分(新的IUPAC符号)和至少一种金属的第二组分或 选自由元素周期表第11-14部分组成的元素的金属基组分和第一组分和第二组分在基本上由结晶硅酸盐或SiC制成的载体上,第二组分为 如果载体基本上由SiC制成,则是可选的。

    CATALYST FOR THE PRODUCTION OF HYDROGEN AT LOW TEMPERATURE, PROCESS FOR PRODUCTION OF THE CATALYST, AND PROCESS FOR PRODUCTION OF HYDROGEN
    235.
    发明公开
    CATALYST FOR THE PRODUCTION OF HYDROGEN AT LOW TEMPERATURE, PROCESS FOR PRODUCTION OF THE CATALYST, AND PROCESS FOR PRODUCTION OF HYDROGEN 审中-公开
    催化剂的氢中的低温生产催化剂和方法的氢的制造生产,工艺

    公开(公告)号:EP2184104A1

    公开(公告)日:2010-05-12

    申请号:EP07832125.4

    申请日:2007-11-19

    Abstract: The drive of direct-heat-supply type reforming of hydrocarbon at ordinary temperature is necessary in order to realize a self-sustaining, on-site reforming type fuel cell system which does not necessitate the supply of energy from the outside. According to the invention, an oxide, CeO 2 or Pr 6 O 11 , or a Ce/Zr or Ce/Zr/Y double oxide is used as the oxide containing a rare earth element capable of changing the oxidation number with an active metal and oxygen defects are introduced into the oxide or double oxide by activating the oxide or double oxide with a reducing gas at high temperature. When a reaction gas containing hydrocarbon and oxygen is passed though the catalyst at low temperature, the oxygen defects react with oxygen and thereby return to the original oxide. Since this return reaction is an exothermic reaction, the catalyst itself is heated, which acts as the driving force for advancing the combustion of the hydrocarbon, whereby the catalyst layer is further heated and the reforming is advanced to from hydrogen. Thus, the hydrogen-producing reaction can be driven even at low temperature, particularly ordinary temperature.

    Abstract translation: 直接供热型在常温下的烃的重整的驱动器是必要的,以便实现自持,现场重整型燃料电池系统,该系统不必要的能量从外面供给。 。根据本发明,或氧化物的CeO 2镨6 O 11,或铈/锆或Ce / Zr的/ Y双氧化物被用作包含能够在活性金属与改变氧化数的稀土元素氧化物和 氧缺陷被引入到在高温下激活所述氧化物或双氧化物与还原气体的氧化物或双氧化物。 当含有烃和氧的反应气体通过但在低温下的催化剂中,氧缺陷与氧反应,从而返回到原来的氧化物。 由于该返回反应是氢的放热反应,该催化剂本身被加热,其中作为用于推进烃的燃烧,由此所述催化剂层被加热,并且进一步重整前进到从驱动力作用。 因此,制氢反应甚至可以在低温下,特别是常温下被驱动。

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