Title:
PRODUCTION OF HIGH CONCENTRATION OZONE GAS AND ITS DEVICE
Document Type and Number:
Japanese Patent JP3697058
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide such a producing method of a high concn. ozone gas and its device that ozone can be efficiently concentrated by using a specified high silica ozone adsorbent having excellent ozone adsorptivity even in a system in the presence of water in a pressure swing adsorbing device.
SOLUTION: In the production of a high concn. ozone gas, a pressure swing adsorbing device 23 equipped with plural adsorption layers packed with an ozone adsorbent is used. An ozone-contg. gas at rather high pressure is introduced into the adsorption layers in adsorbing processes 6, 7 to adsorb ozone. In the desorbing processes 6, 7, a concentrated ozone gas is recovered by applying rather low pressure to the adsorption layers. As for the ozone adsorbent, one or more kinds of adsorbents selected from high silica pentasyl zeolite, dealuminized faujasite and mesoporous silicate are used.
Inventors:
Izumi Jun
Akinori Yasutake
Naruyuki Tomonaga
Hiroyuki Tsutaya
Akinori Yasutake
Naruyuki Tomonaga
Hiroyuki Tsutaya
Application Number:
JP9181398A
Publication Date:
September 21, 2005
Filing Date:
April 03, 1998
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
B01D53/04; B01J20/18; C01B13/10; C25B1/30; (IPC1-7): C01B13/10; B01D53/04; C25B1/30
Domestic Patent References:
| JP3135410A | ||||
| JP3016638A | ||||
| JP9235104A | ||||
| JP3287794A |
Other References:
讃井宏,低温吸着式オゾン濃縮装置,紙パ技協誌,1997年,第51巻第5号,第712-717頁
Attorney, Agent or Firm:
Ryoichi Hagiwara
Atsushi Anzai
Atsushi Anzai