| 摘要 |
A process of treating gases comprises (1) feeding a gaseous composition containing the gas to be treated to a first catalytic electrode in contact with an electrolyte which also contacts a second catalytic electrode, each electrode being electrically conducting and capable of absorbing the gas to be treated and the electrolyte being an ion exchange resin, (2) applying D. C. potential between the electrodes whereby a reaction occurs at each electrode and is catalyzed by the material of which the electrode is made, the reaction resulting in the ionic transport of the gas or a component thereof through the cell, and (3) removing the treated gas from the second electrode. The treatment may result in removing a selected component, e.g. hydrogen or oxygen, from a gas mixture, providing treated gas at a higher pressure than the gaseous composition e.g. compressing a gas, or changing the concentration of a component in a gas mixture. Purified gas from a mixture may be fed to a fuel cell in the same casing in the electrolysis unit, the electrolysis gas removal chamber and the fuel cell input chamber being the same space. In examples for extracting hydrogen from a gas mixture or for increasing the pressure of oxygen, there are used Pt black electrodes and a solid electrolyte formed by a sulphonated phenolformaldehyde resin. Other electrode materials referred to are Rh, Pd, Ir, Pt, Ni, Cu; Pt or Pd blacks deposited on a base of stainless steel, iron or nickel; metal oxides; carbon activated with Pt, Pd or oxides of Fe, Co, or Mg; or alloys of a noble metal, Ti and Ta. Other ion-exchange resins referred to are polystyrene-divinyl benzene sulphonic acid copolymers and phenol-aldehyde carboxylic acid copolymers (cationic) and quaternized chloromethylated polystyrene and aminated chloromethylated polystyrene (anionic). |
