Electrolyzer
AssigneeLynntech Internationals, Inc.
InventorsCraig C. Andrews, Oliver J. Murphy
Life of this patent
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Abstract
An ozone generator which operates at constant pressures to produce a continuous flow of ozone in an oxygen stream having from 10% to 18% by weight of ozone. The ozone generator includes one or more electrolytic cells comprising an anode/anode flowfield, a cathode/cathode flowfield, and a proton exchange medium for maintaining the separation of ozone and oxygen from hydrogen. The ozone generator also has an anode reservoir which vents oxygen and ozone and a cathode reservoir which vents hydrogen. The anode reservoir can be filled from the cathode reservoir while continuing to produce ozone. The ozone generator is readily configured for self-control using a system controller programmed to operate the anode reservoir at a constant pressure.
Claims27
An electrolyzer comprising:
- (a) one or more electrolytic cells, each electrolytic cell comprising an anode catalyst, a cathode catalyst, an ion exchange membrane in intimate contact between the anode catalyst and the cathode catalyst, an anode flow field, and a cathode flowfield;
- (b) wherein the anode flow field comprises:
- (1) a rolled, expanded metal sheet having a first side in contact with a first metal sheet bipolar plate or an anode current collector;
- and
- (2) a porous metal substrate having a first side in contact with a second side of the rolled, expanded metal sheet and a second side having the anode catalyst deposited thereon;
- and
- (c) wherein the cathode flow field comprises:
- (1) a rolled, expanded metal sheet having a first side in contact with a second metal sheet bipolar plate or a cathode current collector;
- (2) a rigid, perforated stainless steel sheet, wherein a first side of the sheet is in contact with a second side of the rolled, expanded metal sheet;
- and
- (3) a sheet of compressible stainless steel felt or wool having a first side in contact with a second side of the rigid, perforated stainless steel sheet and a second side in face-to-face contact with the cathode catalyst.
Dependencies are inferred from the claim text.