| 摘要 |
PURPOSE:To safely treat by-product H2 by supplying by-product H2 to one surface of the gas-diffusion electrode on both surfaces of an ion-exchange membrane and air to the other surface respectively, and electrochemically oxidizing the H2. CONSTITUTION:Water is supplied from the supplying port 11 of the ozone generating cell 1 having an ion-exchange resin membrane 3 provided with a catalytic electrode on both surfaces, and gaseous ozone is discharged from an outlet 12. In this case, gaseous H2 is by-produced on the cathode side of the cell 1. In a hydrogen treating cell 2, the gas-diffusion electrodes 15 and 16 are integrally bonded to both surfaces of the ion-exchange resin membrane 14, the negative and positive-electrode current collectors 17 and 18 permeable to a fluid and consisting of an expandable metal are provided on both surfaces, negative and positive-electrode plates 19 and 20 are further furnished on the rear surface and short-circuited on the outside. The by-product gaseous H2 and air are respectively introduced from the inlets 22 and 23 of the cell 2, H2 is consumed by the negative electrode, a part of the O2 in air is consumed by the positive electrode to generate water, and the water is discharged from an outlet 24 along with excess air. |
