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    • 98. 发明申请
    • PROTON CONDUCTING MEMBRANES FOR HYDROGEN PRODUCTION AND SEPARATION
    • 质子传导膜用于制氢和分离
    • WO2009152255A3
    • 2010-05-06
    • PCT/US2009046924
    • 2009-06-10
    • UNIV FLORIDAWACHSMAN ERIC DYOON HEESUNGOH TAKKEUNLI JIANLIN
    • WACHSMAN ERIC DYOON HEESUNGOH TAKKEUNLI JIANLIN
    • B01D71/00B01D69/10
    • B01D71/024B01D67/0046B01D2323/20B01D2325/00B01J19/02B01J19/2485B01J2219/00135B01J2219/0254C01B3/02C01B3/34C01B3/503C01B3/505C01B2203/0283C01B2203/0405C01B2203/041C01B2203/047C01B2203/0475C01B2203/048C01B2203/0495C01B2203/1205C01B2203/1217C01B2203/1235C01B2203/86C04B38/0038C04B41/5027Y02P30/30Y10T428/24997C04B35/48
    • In one embodiment, a membrane of proton-electron conducting ceramics that is useful for the conversion of a hydrocarbon and steam to hydrogen has a porous support of M'-Sr1-z-M"Z'Ce1-x'-y'Zrx'M'"y'O3-d, Al2O3, mullite, ZrO2, CeO2 or any mixtures thereof where: M' is Ni, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, W, Zn, Pt. Ru, Rh, Pd, alloys thereof or mixtures thereof; M" is Ba, Ca, Mg, Sm, Eu, Gd, Tb. Dy, Ho, Er, Tm, or Yb; M'" is Ti. V, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, W, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm. or Yb; z' is O to about 0.5; x' is O to about 0.5; y' is O to about 0.5; and x' + y' > 0; for example, Ni-SrCe1-X'Zrx'O3-d, where x' is about 0.1 to about 0.3. The porous support is coated with a film of a Perovskite-type oxide of the formula SrCe1-x-yZr?MO3-d where M is at least one of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, W, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm. and Yb, x is 0 to about 0.15 and y is about 0.1 to about 0.3. By including the Zr and M in the oxide in place of Ce, the stability can be improved while maintaining sufficient hydrogen flux for efficient generation of hydrogen. In this manner, the conversion can be carried out by performing steam methane reforming (SMR) and/or water-gas shift reactions (WGS) at high temperature, where the conversion of CO to CO2 and H2 is driven by the removal of H2 to give high conversions. Methods of preparing the membrane cells and a system for use of the membrane cells to prepare hydrogen are presented. A method for sequestering CO2 by reaction with methane or other hydrocarbon catalyzed by the novel membrane to form a syngas is also presented.
    • 在一个实施方案中,用于将烃和蒸汽转化为氢的质子 - 电子传导陶瓷膜具有M'-Sr1-zM“Z'Ce1-x'-y'Zrx'M' 其中:M'为Ni,Ti,V,Cr,Mn,Fe,Co,Ni,Cu,Nb,Mo,W,Zn,Pt 。 Ru,Rh,Pd,其合金或其混合物; M“是Ba,Ca,Mg,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm或Yb; M”'是Ti。 V,Cr,Mn,Fe,Co,Ni,Cu,Nb,Mo,W,Pr,Nd,Pm,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm。 或Yb; z'为0至约0.5; x'为0至约0.5; y'为0至约0.5; 并且x'+ y'> 0; 例如,Ni-SrCe1-X'Zrx'O3-d,其中x'为约0.1至约0.3。 多孔载体涂覆有式SrCe1-x-yZr2MO3-d的钙钛矿型氧化物膜,其中M是Ti,V,Cr,Mn,Fe,Co,Ni,Cu,Nb中的至少一种 ,Mo,W,Pr,Nd,Pm,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm。 和Yb,x是0至约0.15,y是约0.1至约0.3。 通过在氧化物中包含Zr和M来代替Ce,可以在保持足够的氢通量的情况下提高稳定性,从而有效地产生氢气。 以这种方式,转化可以通过在高温下进行蒸汽甲烷重整(SMR)和/或水煤气变换反应(WGS)来进行,其中通过去除H 2来驱动CO转化为CO 2和H 2, 给予高转换率。 提出了制备膜细胞的方法和使用膜细胞制备氢的系统。 还介绍了通过与由新型膜催化的甲烷或其他烃反应形成合成气来隔离CO 2的方法。