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公开(公告)号：US20190126191A1
公开(公告)日：2019-05-02
申请号：US16092220
申请日：2017-03-03
Applicant: IWATANI CORPORATION
Inventor： Sadaki NAKAMURA , Koichi IZUMI , Naohisa MAKIHIRA
IPC: B01D53/053 , C01B13/10
Abstract: 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.
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公开(公告)号：US20150020890A1
公开(公告)日：2015-01-22
申请号：US14511214
申请日：2014-10-10
Applicant: Iwatani Corporation , CENTRAL GLASS COMPANY, LIMITED
Inventor： Kunihiko KOIKE , Yu YOSHINO , Naohisa MAKIHIRA , Takehiko SENOO , Toshihiro AIDA , Tomoya BIRO , Hiroshi ICHIMARU , Masahiro TAINAKA
CPC classification number: B01F5/10 , B01F15/00162 , B01F15/005 , B01F15/026 , G05D11/001 , G05D11/138 , Y10T137/0391 , Y10T137/8766
Abstract: A method and apparatus, for supplying high-pressure mixed gas of a low-vapor-pressure first gas as an active gas and a high-vapor-pressure second gas, are arranged to reduce an amount of the first gas discarded. The mixed gas in a high-pressure state is supplied from a mixing container to a use point. Upon reduction of pressure in the mixing container to a setpoint as a result of supply to the use point, a predetermined amount of the first gas is charged into a replenishment container connected to the mixing container by a replenishment line having a replenishment valve, and which is evacuated. As the second gas is charged into the replenishment container charged with the first gas, the replenishment valve is opened such that the first gas in the replenishment container is forced out by the second gas, thereby charging the mixing container with the mixed gas in the high-pressure condition.
Abstract translation: 用于提供作为活性气体的低蒸气压第一气体和高蒸气压的第二气体的高压混合气体的方法和装置被布置成减少废弃的第一气体的量。 高压状态的混合气体从混合容器供给到使用点。 在将混合容器中的压力降低到作为使用点的供给量的设定点时，将预定量的第一气体通过具有补充阀的补充管线装入连接到混合容器的补充容器中，并且 被疏散。 随着第二气体被充入装有第一气体的补充容器中，补充阀打开，使得补充容器中的第一气体被第二气体强制排出，从而将混合容器与高混合气体充满 压力条件
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公开(公告)号：US20190111379A1
公开(公告)日：2019-04-18
申请号：US16092016
申请日：2017-03-03
Applicant: IWATANI CORPORATION
Inventor： Sadaki NAKAMURA , Koichi IZUMI , Naohisa MAKIHIRA
IPC: B01D53/053 , C01B13/10 , B01D53/04
Abstract: 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 (20) that houses an adsorbent for adsorbing ozone gas; reducing a pressure in a concentration vessel (30) in a state where the concentration vessel (30) does not communicate with the adsorption vessel (20), the concentration vessel (30) being configured to be connected to the adsorption vessel (20) so as to be interswitchable between a state where the concentration vessel (30) communicates with the adsorption vessel (20) and a state where the concentration vessel does not communicate with the adsorption vessel (20); 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 (30) by desorbing the ozone gas adsorbed onto the adsorbent using a pressure difference between the internal pressure of the concentration vessel (30) and an internal pressure of the adsorption vessel (20) in a state where the concentration vessel (30) having a reduced internal pressure communicates with the adsorption vessel (20) that houses the adsorbent onto which the ozone gas is adsorbed, and delivering the desorbed ozone gas into the concentration vessel (30). Also provided is an apparatus (1) for concentrating ozone gas for implementing the method.
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公开(公告)号：US20180257934A1
公开(公告)日：2018-09-13
申请号：US15761040
申请日：2016-06-29
Applicant: IWATANI CORPORATION
Inventor： Naohisa MAKIHIRA , Koichi IZUMI , Masahiro FURUTANI
CPC classification number: C01B13/11 , B01D53/04 , B01D53/0407 , B01D53/0446 , B01D53/0454 , B01D2253/106 , B01D2256/14 , B01D2257/404 , B01D2259/40086 , B01D2259/40088
Abstract: A method for supplying an ozone gas includes the steps of: supplying an ozone gas from an ozone gas source through a second channel; and switching the ozone gas to a state where the ozone gas is supplied through a first channel and supplying the ozone gas having a reduced concentration of nitrogen oxide. The step of supplying the ozone gas through the second channel includes the step of introducing a part of the ozone gas to a first vessel so that ozone adsorbability of a first adsorbent is reduced. In the step of supplying the ozone gas to the object through the first channel, the ozone gas passes through the first vessel holding the first adsorbent having reduced ozone adsorbability.
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