ELECTROCATALYTIC OXIDATIVE DEHYDROGENATION OF SATURATED HYDROCARBONS TO UNSATURATED HYDROCARBONS

    公开(公告)号:GB2203446B

    公开(公告)日:1991-03-27

    申请号:GB8806036

    申请日:1988-03-14

    Abstract: An electrocatalytic process is described for producing unsaturated hydrocarbon compounds from saturated hydrocarbon compounds. The process is conducted in an electrogenerative cell and generally comprises the steps of (A) providing a fuel cell comprising a solid electrolyte having a first surface coated with conductive metal, metal oxide or mixtures thereof capable of catalyzing the reduction of oxygen to oxygen ions, and a second surface coated with metal, metal oxide or mixtures thereof, the two conductive coatings being connected by an external circuit, (B) passing an oxygen-containing gas in contact with the first conductive coating while, (C) passing the saturated hydrocarbon compound-containing feed gas in contact with the second conductive coating, and (D) recovering unsaturated hydrocarbons. In a preferred embodiment, the conductive metal coating on the first and second surfaces comprises a silver-containing metal composition. In another preferred embodiment, the invention comprises a continuous process for the oxidative dehydrogenation of ethane to ethylene and acetylene while generating electricity in an electrogenerative reactor.

    23.
    发明专利
    未知

    公开(公告)号:NO884430L

    公开(公告)日:1989-04-06

    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.

    28.
    发明专利
    未知

    公开(公告)号:DE3854757T2

    公开(公告)日:1996-04-25

    申请号:DE3854757

    申请日:1988-09-29

    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.

    OXYGEN PERMEABLE MIXED CONDUCTOR MEMBRANES

    公开(公告)号:CA2158607A1

    公开(公告)日:1996-03-24

    申请号:CA2158607

    申请日:1995-09-19

    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.degree.C, having no connected through porosity wherein the membrane is of a composition represented by the formula ¢A1-xA'x!¢Co1-y-zByB'z!O3-.delta., where A - Ca, Sr, Ba, and mixtures thereof; A' - La, Y, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Th, U, and mixtures thereof; B = Fe, Mn, Cr, V, Ti, and mixtures thereof; B' - Cu, Ni, and mixtures thereof; ?0.0001 ?0.0005 metals.

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