Perovskite material, preparation method and use in catalytic membrane reactor
    2.
    发明申请
    Perovskite material, preparation method and use in catalytic membrane reactor 审中-公开
    钙钛矿材料,制备方法和用于催化膜反应器

    公开(公告)号:US20060145126A1

    公开(公告)日:2006-07-06

    申请号:US10562521

    申请日:2004-07-08

    IPC分类号: H01B1/12

    摘要: The invention concerns a mixed electronic and O2− anion conductive perovskite material, of formula (I): A(a)(1-x-u)A′(a−1)xA″(a″)uB(b)(1-s-y-v)B(b+1)sB′(b+β)yB″(b″)vO3-d, wherein: a, a−1, a″, b, b+1, b+β et b″ are integers representing respective valences of the atoms A, A′, A″, B, B′, B″; a, a″, b, b″, β, x, y, s, u, v et δ such that the electrical neutrality of the crystal lattice is preserved; A represents an atom selected among scandium, yttrium or in the families of lanthanides, actinides or alkaline-earth metals; A″ represents an atom selected among Al, Ga, In, or Tl; B, B′, B″ represents an atom selected among the transition metals, Al, In, Ga, Ge, Sb, Bi, Sn or Pb. The invention also concerns the method for preparing said material and its use as mixed conductive material of a catalytic membrane reactor, for use in synthesizing synthetic gas by oxidation of methane or natural gas.

    摘要翻译: 本发明涉及式(I)的混合电子和O 2 - 阴离子导电钙钛矿材料:A(a)(1-xu) > A'(a-1) (b)< / SUP>(1-syv)B(b + 1) (b“)其中:a(a)和(b) ,a-1,a“,b,b + 1,b +β等b是表示原子A,A',A”,B,B',B“的各自的价数的整数。 a,a',b,b“,β,x,y,s,u,v et delta,使得保持晶格的电中性; A表示选自钪,钇或镧系元素,锕系元素或碱土金属的族中的原子; A“表示选自Al,Ga,In或Tl中的原子; B,B',B“表示选自过渡金属Al,In,Ga,Ge,Sb,Bi,Sn或Pb中的原子。 本发明还涉及制备所述材料的方法及其作为催化膜反应器的混合导电材料的用途,用于通过甲烷或天然气的氧化合成合成气体。

    Process for manufacturing of ceramic catalytic membrane reactors by co-extrusion
    5.
    发明申请
    Process for manufacturing of ceramic catalytic membrane reactors by co-extrusion 审中-公开
    通过共挤出制造陶瓷催化膜反应器的方法

    公开(公告)号:US20050253312A1

    公开(公告)日:2005-11-17

    申请号:US11128047

    申请日:2005-05-12

    摘要: Preparation of a supported tubular ceramic membrane composed of two coaxial layers along a axis (x), a first layer with a non-zero thickness es of a support material (S) and a second layer with a non-zero thickness eM of an active material (M), characterised in that it comprises the following steps in sequence: a step (a) to shape said supported membrane by simultaneous coaxial co-extrusion of a paste PS of the support material (S) at a flow velocity along the axis (x) VS and a paste PM of active material (M) with a flow velocity along the axis (x) VM, where VS=VM; a step (b) to dry the co-extrudate formed in step (a); a step (c) to debind the co-extrudate dried in step (b), and a step (d) to apply a heat treatment to co-sinter the two coaxial layers of the product obtained in step (c); Device for implementation of step (a).

    摘要翻译: 制备由轴(x)两个同轴层组成的支撑管状陶瓷膜,具有非零厚度的支承材料(S)的第一层和非零厚度的第二层 M的活性物质(M),其特征在于,其顺序包括以下步骤:步骤(a)通过同时同时共挤出糊状物来形成所述负载膜, 沿着轴线(x)V S S的流速和活性材料(M)的浆料P M M的流速(S)的支撑材料(S) 沿着轴线(x)V M M,其中V S = V M; 步骤(b)干燥步骤(a)中形成的共挤出物; 剥离步骤(b)中干燥的共挤出物的步骤(c)和步骤(d),以进行热处理以共烧烧步骤(c)中获得的产物的两个同轴层; 用于实施步骤(a)的装置。