Title:
GAS-CONDENSING METHOD
Document Type and Number:
WIPO Patent Application WO/2015/199227
Kind Code:
A1
Abstract:
This invention further improves a gas recovery rate when generating a high-purity gas. This gas-condensing method, which is used with a configuration in which three or more adsorption towers filled with an adsorbent that adsorbs a gaseous adsorbate are provided, includes a step in which, before performing a pressure equalization (pressure reduction) process in a first adsorption tower that has finished an adsorption process, while a feedstock gas is being supplied to a second adsorption tower that has finished at least a pressure equalization (pressure increase) process and is to perform the aforementioned adsorption process next, unadsorbed gas is transferred from the top of the first adsorption tower to the top of the second adsorption tower, thereby performing an adsorption/pressure equalization (pressure reduction) process in the first adsorption tower and an adsorption/pressure equalization (pressure increase) process in the second adsorption tower.
Inventors:
TANAKA HIROSHI (JP)
FUJIWARA YUKIO (JP)
KOTANI TAMOTSU (JP)
FUJIWARA YUKIO (JP)
KOTANI TAMOTSU (JP)
Application Number:
PCT/JP2015/068534
Publication Date:
December 30, 2015
Filing Date:
June 26, 2015
Export Citation:
Assignee:
OSAKA GAS CO LTD (JP)
International Classes:
B01D53/047; C10L3/10
Foreign References:
| JP2007537867A | 2007-12-27 | |||
| JP2012503543A | 2012-02-09 | |||
| JP2001187309A | 2001-07-10 | |||
| JP2013528486A | 2013-07-11 | |||
| JP2013155076A | 2013-08-15 | |||
| JP2008246403A | 2008-10-16 |
Attorney, Agent or Firm:
R&C IP LAW FIRM (JP)
Patent business corporation R&C (JP)
Patent business corporation R&C (JP)
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