Iwatani Corporation

Sharp Kabushiki Kaisha Corporation

Sadaki Nakamura

Koichi Izumi

Naohisa Makihira

Kunihiko Koike

Goichi Inoue

Norikazu Hohshi

Takashi Minamihonoki

Shigenori Takatori

Provided is method for concentrating ozone gas the method including the steps of: allowing ozone gas to be adsorbed onto the adsorbent by introducing ozone gas-containing raw material mixed gas into an adsorption vessel () that houses an adsorbent for adsorbing ozone gas; reducing a pressure in a concentration vessel () in a state where the concentration vessel () does not communicate with the adsorption vessel (), the concentration vessel () being configured to be connected to the adsorption vessel () so as to be interswitchable between a state where the concentration vessel () communicates with the adsorption vessel () and a state where the concentration vessel does not communicate with the adsorption vessel (); and introducing concentrated mixed gas including ozone gas with a higher ozone gas concentration than the ozone gas concentration in the raw material mixed gas into the concentration vessel () by desorbing the ozone gas adsorbed onto the adsorbent using a pressure difference between the internal pressure of the concentration vessel () and an internal pressure of the adsorption vessel () in a state where the concentration vessel () having a reduced internal pressure communicates with the adsorption vessel () that houses the adsorbent onto which the ozone gas is adsorbed, and delivering the desorbed ozone gas into the concentration vessel (). Also provided is an apparatus () for concentrating ozone gas for implementing the method.

Method for concentrating ozone gas and apparatus for concentrating ozone gas

Provided is a method for concentrating ozone gas, including the steps of: allowing ozone gas to be adsorbed onto an adsorbent in a first adsorption vessel; reducing pressure in a concentration vessel in a state where the concentration vessel does not communicate with the first adsorption vessel; discharging part of gas in the first adsorption vessel; introducing first concentrated mixed gas in the concentration vessel by desorbing ozone gas in the first concentrated mixed gas and delivering the desorbed ozone gas into the concentration vessel; allowing ozone gas to be adsorbed onto an adsorbent in a second adsorption vessel; and introducing second concentrated mixed gas into the concentration vessel in a state where the concentration vessel into which the first concentrated mixed gas is introduced and the second adsorption vessel that houses an adsorbent. Also provided is an apparatus for concentrating ozone gas for implementing the method.

The disclosed device and method produce high concentration ozonated water by connecting a high concentration ozone gas-supplying system that comprises an ozone gas-generating unit () for forming ozone gas, an ozone gas-concentrating unit () for concentrating the ozone gas formed, a concentrated ozone gas-pressurizing unit () for pressurizing the concentrated ozone gas output from the ozone gas-concentrating unit (), and a cooling mechanism () for cooling the concentrated ozone gas-pressurizing unit (), to an ozone gas-dissolving unit () to dissolve the high pressure, concentrated ozone gas in pure water and produce the high concentration ozonated water.

Method for producing high concentration ozonated water and device for producing high concentration ozonated water

A method of concentrating ozone gas including: causing ozone gas contained in ozone-oxygen mixture gas to be selectively adsorbed to adsorbents which are filled in a non-cooled state in at least two adsorbing cylinders arranged parallel to one another; desorbing the ozone gas from the adsorbents by subjecting a depressurizing process to each adsorbing cylinder during an ozone gas desorption operation; repeating an adsorption step and a desorption step alternately in the at least two adsorbing cylinders; and controlling the adsorbing cylinders, in such a way that one of the adsorbing cylinders is performing the adsorption step while another one of the adsorbing cylinders is performing the desorption step.

Method and apparatus for concentrating ozone gas

A method of concentrating ozone gas in which, although the apparatus configuration is simple, ozone gas of a predetermined concentration can be efficiently taken out, and an apparatus therefor are provided. In a method of concentrating ozone gas in which an ozone-oxygen mixture gas is acted in an adsorbing column that is filled with an adsorbent, to cause the adsorbent to selectively adsorb the ozone gas, and the selectively adsorbed ozone gas is desorbed, thereby concentrating and purifying the ozone gas, the ozone-oxygen mixture gas is acted on the adsorbent in a non-cooled state to cause the ozone gas to be selectively adsorbed to the adsorbent, the adsorbing column is vacuumed when performing an operation desorbing of the ozone gas, thereby desorbing the ozone gas from the adsorbent, and an initial amount of the leading out of the desorbed ozone gas is not recovered, thereby obtaining high-concentration ozone gas.

Method of concentrating ozone gas and apparatus therefor

The present invention provides a method and an apparatus for condensing ozone arranged so as to efficiently take out the ozone gas of a predetermined concentration, although its construction is simple. The method for condensing the ozone gas comprises acting ozone-oxygen mixture gas on an adsorbing cylinder which is filled in its interior area with an adsorbent so as to selectively adsorb the ozone gas to an adsorbent and desorbing the selectively adsorbed ozone gas so as to condense and purify the ozone gas. The method further includes acting the ozone-oxygen mixture gas on the adsorbent in non-cooled state to selectively adsorb the ozone gas to the adsorbent and vacuuming the adsorbing cylinder on performing desorption-operation of the ozone gas to desorb the ozone gas from the adsorbent.

Growing community of inventors

Moriyama, Japan

Sadaki Nakamura