ALKALINE-WATER ELECTROLYSIS APPARATUS AND GAS PRODUCTION METHOD

Title:

ALKALINE-WATER ELECTROLYSIS APPARATUS AND GAS PRODUCTION METHOD

Document Type and Number:

WIPO Patent Application WO/2019/181662

Kind Code:

A1

Abstract:

The present invention provides an alkaline-water electrolysis apparatus provided with: an electrolytic cell; a first gas-liquid separator that separates an electrolytic solution flowing out of an anode chamber and oxygen gas; a second gas-liquid separator that separates an electrolytic solution flowing out of a cathode chamber and hydrogen gas; first and second electrolytic-solution tanks that respectively store the electrolytic solutions separated by the first and second gas-liquid separators; an oxygen-gas blowing pipe and a hydrogen-gas blowing pipe that respectively guide the separated oxygen gas and hydrogen gas to gas phase regions of the first and second electrolytic-solution tanks; an oxygen-gas discharge pipe and a hydrogen-gas discharge pipe that respectively discharge the oxygen gas and the hydrogen gas from the gas phase regions of the first and second electrolytic-solution tanks; and a circulation device that supplies the electrolytic solutions to the electrolytic cell from the first and second electrolytic-solution tanks.

Inventors:

TANAKA YASUYUKI (JP)
SUEOKA HARUMI (JP)

Application Number:

PCT/JP2019/010092

Publication Date:

September 26, 2019

Filing Date:

March 12, 2019

Export Citation:

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Assignee:

TOKUYAMA CORP (JP)

International Classes:

C25B9/19; C25B15/08

Domestic Patent References:

WO2017030153A1

2017-02-23

Foreign References:

JP2012001745A	2012-01-05
JP2017039982A	2017-02-23
JPS608482B2	1985-03-04
JP2017119895A	2017-07-06
JP2017203218A	2017-11-16
JP2017179557A	2017-10-05

Other References: