1.
    发明专利
    未知

    公开(公告)号:BR9504113A

    公开(公告)日:1997-04-01

    申请号:BR9504113

    申请日:1995-09-21

    Abstract: The present invention relates to novel solid state mixed conductor membranes and their use for separating oxygen from oxygen-containing feeds at elevated temperatures. The membranes comprise a multicomponent metallic oxide of substantially cubic perovskite structure, stable in air over the temperature range of 25-950 DEG C, having no connected through porosity wherein the membrane is of a composition represented by the formula ÄA1-xA'xÜÄCo1-y-zByB'zÜO3- delta , where A IDENTICAL Ca, Sr, Ba, and mixtures thereof; A' IDENTICAL La, Y, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Th, U, and mixtures thereof; B IDENTICAL Fe, Mn, Cr, V, Ti, and mixtures thereof; B' IDENTICAL Cu, Ni, and mixtures thereof; SIMILAR 0.0001

    3.
    发明专利
    未知

    公开(公告)号:NO175712B

    公开(公告)日:1994-08-15

    申请号:NO884430

    申请日:1988-10-05

    Abstract: An electrocatalytic process is described for producing synthesis gas from light hydrocarbons such as methane or natural gas. The process generally comprises the steps of (A) providing an electrochemical cell comprising a solid electrolyte having a first surface coated with conductive metal, metal oxide or mixtures thereof capable of facilitating the reduction of oxygen to oxygen ions, and a second surface coated with conductive metal, metal oxide or mixtures thereof, provided that both coatings are stable at the operating temperatures, (B) heating the cell to a temperature of at least 1000 DEG C, (C) passing an oxygen-containing gas in contact with the first conductive coating, (D) passing methane, natural gas or other light hydrocarbons in contact with the second conductive coating, and (E) recovering synthesis gas.

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