Patent ID: 8444831

Claim:
A method of generating ozone, comprising: supplying oxygen having a purity of at least 99.99%, as a first raw material gas, to a discharge space in which a pair of electrodes, having a dielectric disposed between the pair of electrodes, is disposed; supplying one of nitrogen dioxide and nitrogen monoxide, as a second raw material gas, added to the oxygen, in a concentration in a range from 0.7 to several hundred ppm; and producing a silent discharge between the pair of electrodes by applying an AC voltage between the electrodes from a power supply to inject an electrical discharge power to the discharge space based on flow rate of the first and second raw material gases and in a range from 140 through 500 Watts·minute per liter, so that excitation light, generated by the silent discharge in the first and second raw material gases, dissociates the second raw material gas, or excites the second raw material gas to accelerate dissociation of the oxygen, thereby generating ozone.