Generation and delivery device for ozone gas and ozone dissolved in water
AssigneeLynntech International, Ltd.
InventorsCraig C. Andrews, Oliver J. Murphy
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Abstract
The present invention provides an ozone generation and delivery system that lends itself to small scale applications and requires very low maintenance. The system includes an anode reservoir and a cathode phase separator each having a hydrophobic membrane to allow phase separation of produced gases from water. The system may be configured to operate passively with no moving parts or in a self-pressurizing manner with the inclusion of a pressure controlling device or valve in the gas outlet of the anode reservoir. The hydrogen gas, ozone gas and water containing ozone may be delivered under pressure.
Claims48
An ozone generating and delivery system comprising:
- an electrochemical cell having an anode and a cathode;
- and
- an anode reservoir in communication with the anode, the anode reservoir comprising a gas outlet port and a porous hydrophobic membrane disposed over the gas outlet port.
An ozone generating and delivery system comprising:
- a plurality of electrochemical cells, each cell having an anode and a cathode;
- and
- an anode reservoir in communication with the anodes, the anode reservoir comprising a gas outlet port and a porous hydrophobic membrane disposed over the gas outlet port.
29 The system of claim 26, wherein the plurality of electrochemical cells are positioned side by side with the anodes facing the anode reservoir.
The system of claim 29, wherein the electrochemical cells are wired in series.
The system of claim 29, wherein the electrochemical cells use a common proton exchange membrane.
A phase separator for an electrochemical cell that provides a gas containing liquid stream, comprising:
- a reservoir comprising an inlet passage for receiving the gas-containing liquid stream, a gas outlet port, a porous hydrophobic membrane disposed over the gas outlet port, and an outlet passage for returning the liquid to the electrochemical cell.
A waste gas destruction unit for an electrochemical system producing ozone and hydrogen gases, comprising:
- a first region comprising an hydrogen inlet, an oxygen source inlet and a tortuous packing;
- a second region downstream of the first region, the second region comprising a hydrogen destruction catalyst.
- a third region downstream of the second region, the third region comprising an ozone inlet and a tortuous packing;
- and
- a fourth region downstream of the third region, the fourth region comprising an ozone destruction catalyst and a vent.
An electrochemical method of generating and delivering ozone, comprising the steps of:
- (a) electrolyzing water in one or more electrolytic cells to generate a combination of oxygen and ozone in water at the anode and hydrogen in water at the cathode;
- (b) receiving anode water containing dissolved oxygen and ozone gases from the anode into an anode reservoir;
- and
- (c) separating the ozone/oxygen gas from the anode water using a porous hydrophobic membrane disposed in the anode reservoir.
Dependencies are inferred from the claim text.