Search International and National Patent Collections

1. (WO2017187787) OZONE GAS CONCENTRATION METHOD AND OZONE GAS CONCENTRATION DEVICE

Pub. No.:    WO/2017/187787    International Application No.:    PCT/JP2017/008615
Publication Date: Fri Nov 03 00:59:59 CET 2017 International Filing Date: Sat Mar 04 00:59:59 CET 2017
IPC: C01B 13/10
B01D 53/053
Applicants: IWATANI CORPORATION
岩谷産業株式会社
Inventors: NAKAMURA, Sadaki
中村 貞紀
IZUMI, Koichi
泉 浩一
MAKIHIRA, Naohisa
牧平 尚久
Title: OZONE GAS CONCENTRATION METHOD AND OZONE GAS CONCENTRATION DEVICE
Abstract:
Provided are an ozone gas concentration method and an ozone gas concentration device (1) that facilitates same, said ozone gas concentration method including; a step in which ozone gas is caused to be adsorbed by an adsorption agent inside a first adsorption vessel (20A); a step in which the interior of a concentration vessel (30) is depressurized in a state in which same does not communicate with the first adsorption vessel (20A); a step in which some of the gas inside the first adsorption vessel (20A) is discharged; a step in which a first concentrated mixed gas is guided inside the concentration vessel (30) by desorbing ozone gas inside the first adsorption vessel (20A) and conveying same to inside the concentration vessel (30); a step in which ozone gas is caused to be adsorbed by an adsorption agent inside a second adsorption vessel (20B); and a step in which the concentration vessel (30) having the first concentrated mixed gas guided therein and the second adsorption vessel (20B) holding the adsorption agent that has adsorbed the ozone gas are switched to a communicated state and the second concentrated mixed gas is guided inside the concentration vessel (30).