USE OF GAS DEPOLARIZED ANODES FOR THE ELECTROCHEMICAL PRODUCTION OF ADIPONITRILE

    公开(公告)号:CA1263626A

    公开(公告)日:1989-12-05

    申请号:CA490069

    申请日:1985-09-05

    Inventor: TROCCIOLA JOHN C

    Abstract: Gas depolarized anodes used in the electrohydrodimerization of acrylonitrile to adiponitrile result in anode voltage requirements of less than about 400 millivolts at 100 milliamperes per square centimeter of electrode area. Typically, oxygen evolving anodes characterized by high theoretical voltages and high overvoltages are utilized in the hydrodimerization of acrylonitrile to adiponitrile. Also, a supply of acrylonitrile is maintained in contact with the cathode and a supply of reductant is maintained in contact with the anode. Gas depolarized anodes requiring substantially reduced voltages perform well in the conventional electrochemical adiponitrile production environment.

    SILICON CARBIDE MATRIX FOR FUEL CELLS

    公开(公告)号:CA1241370A

    公开(公告)日:1988-08-30

    申请号:CA465307

    申请日:1984-10-12

    Abstract: Improved Silicon Carbide Matrix for Fuel Cells A matrix for holding the electrolyte within a phosphoric acid fuel cell is made from silicon carbide and a binder of polyethersulfone. Preferably the matrix consists of 10-20 weight percent polyethersulfone with a balance of silicon carbide. The matrix has improved strength, wettability and bubble pressure compared to the best known prior art matrix.

    HIGH TEMPERATURE, HIGH PRESSURE CHEMICAL RESISTANT SEAL MATERIAL

    公开(公告)号:CA1215197A

    公开(公告)日:1986-12-09

    申请号:CA396499

    申请日:1982-02-17

    Abstract: High Temperature, High Pressure Chemical Resistant Seal Material A seal material especially adapted for phosphoric acid fuel cell stack sealing is described comprising an unfilled, unoiled high molecular weight polytetrafluoroethylene. Although the seal material is especially adapted as the regular seal around the plenums separating the oxygen and hydrogen gas inlets and outlets, it can also be used as a plenum or stack crack sealer, The material provides seal integrity and stability at temperatures in excess of 400.degree.F (204.degree.C), e.g. 400.degree.F to 450.degree.F (204.degree.C to 232.degree.C), in a corrosive chemical environment at differential pressures above 50 psi (e.g. 50 psi to 80 psi). It can be used in electrochemical cells in general where high temperature, high pressure, corrosive environments prevail.

    CATALYTIC COMBUSTOR
    7.
    发明专利

    公开(公告)号:CA1196324A

    公开(公告)日:1985-11-05

    申请号:CA419431

    申请日:1983-01-13

    Abstract: Catalytic Combustor A catalytic combustor particularly adapted for use in wood and coal burning stoves is described comprising a high temperature stable support material containing a high activity, sulfur tolerant combustion catalyst. In addition to having a relatively long life, the catalytic combustors according to the present invention demonstrate useful performance even in the presence of sulfur containing fuels. Furthermore, the catalytic combustors of the present invention improve the efficiency of such stoves over and above that provided by conventional catalytic combustors.

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