METAL-DOPED NICKEL OXIDES AS CATALYSTS FOR THE METHANATION OF CARBON MONOXIDE
    1.
    发明申请
    METAL-DOPED NICKEL OXIDES AS CATALYSTS FOR THE METHANATION OF CARBON MONOXIDE 审中-公开
    金属氧化镍作为一氧化碳甲烷的催化剂

    公开(公告)号:US20100168257A1

    公开(公告)日:2010-07-01

    申请号:US12530584

    申请日:2008-03-11

    摘要: The invention relates to catalysts for the methanation of carbon monoxide, which comprise metal-doped nickel oxide of the composition (in mol %) (M1)a(M2)bNicOxwhere a=0.1 to 5 mol %, b=3 to 20 mol % and c=100−(a+b) mol % and M1 comprises at least one metal of transition group VII or VIII of the PTE (=Periodic Table of the Elements) and M2 comprises at least one metal of transition group III or IV of the PTE. The catalysts can be used as pure catalysts or as supported catalysts, if appropriate applied as coatings to an inert support body. They display high conversion and high selectivity and are used in methanation processes of CO in hydrogen-containing gas mixtures, in particular in reformates for operation of fuel cells. The catalysts of the invention can be prepared by precipitation, impregnation, sol-gel methods, sintering processes or by powder synthesis.

    摘要翻译: 本发明涉及用于一氧化碳甲烷化的催化剂,其包含组合物的金属掺杂的氧化镍(以摩尔%计)(M1)a(M2)bNicOx,其中a = 0.1至5摩尔%,b = 3至20摩尔% 和c = 100-(a + b)摩尔%,M1包含PTE(=元素周期表)的过渡基团VII或VIII中的至少一种金属,M2包含至少一种过渡族III或IV族金属 PTE。 催化剂可以用作纯催化剂或作为负载型催化剂,如果适用,则用作惰性载体的涂层。 它们具有高转化率和高选择性,并且用于含氢气体混合物中CO的甲烷化过程,特别是用于燃料电池操作的重整产物。 本发明的催化剂可以通过沉淀,浸渍,溶胶 - 凝胶法,烧结工艺或粉末合成法制备。

    Method for producing a fuel gas containing hydrogen for electrochemical cells and associated device
    2.
    发明申请
    Method for producing a fuel gas containing hydrogen for electrochemical cells and associated device 审中-公开
    用于生产电化学电池用氢气和相关装置的燃料气体的方法

    公开(公告)号:US20060168887A1

    公开(公告)日:2006-08-03

    申请号:US10535605

    申请日:2003-10-18

    IPC分类号: C10J3/46 B01J8/00

    摘要: The invention relates to a process and an apparatus for producing hydrogen-containing fuel gases for fuel cells by catalytic reforming of hydrocarbons and subsequent gas purification. The process is characterized in that the catalytic reforming comprises two successive stages of which the first stage comprises autothermal reforming and the second stage comprises low-temperature steam reforming at temperatures below 650° C. In the first stage (autothermal reforming, ATR stage), a feed mixture of hydrocarbons, oxygen and water or water vapour is reacted over a catalyst in an autothermal reforming reaction to convert it incompletely into a hydrogen-rich gas mixture. The mixture which still contains residual amounts of hydrocarbons is then reacted in a subsequent steam reforming stage (second stage, SR stage) to give a hydrogen-rich fuel gas. A fuel gas which has a temperature at the reactor outlet of 400-650° C. and contains a very high proportion of hydrogen is obtained. Owing to the low outlet temperatures, the fuel gas can be passed directly to a gas purification stage without use of additional heat exchangers. In addition to the improvement in the reformer efficiency, a more compact and cheaper reformer design is made possible by the invention. Process and apparatus are used for producing hydrogen or hydrogen-containing fuel gases for fuel cells, in particular for mobile and stationary applications.

    摘要翻译: 本发明涉及通过烃的催化重整和随后的气体净化来生产用于燃料电池的含氢燃料气体的方法和装置。 该方法的特征在于催化重整包括两个连续阶段,其中第一阶段包括自热重整,第二阶段包括低于650℃的低温蒸汽重整。在第一阶段(自热重整,ATR阶段) 烃,氧和水或水蒸气的进料混合物在自热重整反应中在催化剂上反应,将其不完全转化为富氢气体混合物。 然后仍然含有残留量的烃的混合物在随后的蒸汽重整阶段(第二阶段,SR阶段)中反应,得到富氢燃料气体。 获得在反应器出口处具有400-650℃的温度并且含有非常高比例的氢的燃料气体。 由于出口温度低,燃料气体可以直接通过气体净化阶段,而不需要额外的热交换器。 除了提高重整器效率之外,通过本发明可以实现更紧凑和更便宜的重整器设计。 工艺和设备用于生产用于燃料电池的氢或含氢燃料气体,特别是用于移动和固定应用。