Title:
PRESSURE SWING ADSORPTION TYPE GAS MANUFACTURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/170983
Kind Code:
A1
Abstract:
Provided is a pressure swing adsorption type gas manufacturing device wherein when the concentration of a gas to be purified in a raw material gas varies, the recovery rate of the gas to be purified can be improved for each concentration variation. In each of a plurality of adsorption towers 1, an operation control unit sequentially performs, by differing the phases, an operation cycle that includes an adsorption step of discharging a gas to be purified through a product gas discharge channel 5 by adsorbing a miscellaneous gas from a raw material gas G supplied through a raw material gas supply channel 3, and a desorption step of discharging the miscellaneous gas through an off-gas discharge channel 4. The operation control unit is configured so as to adjust, on the basis of detection information from a raw material gas concentration detection unit SG that detects the concentration of the gas to be purified in the raw material gas G, a pressure adjustment unit 10 that adjusts the supply pressure of the raw material gas in order to adjust the supply pressure of the raw material gas by which the raw material gas G is supplied to the adsorption tower 1 to a target pressure determined in accordance with the concentration of the gas to be purified in the raw material gas.
Inventors:
KAWASHIMA SHOTA (JP)
KOTANI TAMOTSU (JP)
KOTANI TAMOTSU (JP)
Application Number:
PCT/JP2017/013532
Publication Date:
October 05, 2017
Filing Date:
March 31, 2017
Export Citation:
Assignee:
OSAKA GAS CO LTD (JP)
International Classes:
B01D53/047; C10L3/10
Domestic Patent References:
| WO2014204131A1 | 2014-12-24 |
Foreign References:
| JP2010209036A | 2010-09-24 | |||
| JPS5830321A | 1983-02-22 |
Attorney, Agent or Firm:
R&C IP LAW FIRM (JP)
Download PDF: