Hydrogen-oxygen reaction device

Patent metadata

Field	Value
Publication number	US-10801116-B2
Application number	US-201816628087-A
Country	US
Kind code	B2
Filing date	Jan 10, 2018
Priority date	Jul 4, 2017
Publication date	Oct 13, 2020
Grant date	Oct 13, 2020

Abstract

This hydrogen-oxygen reaction device includes a reaction vessel including a reaction region filled with a reaction catalyst which promotes a reaction between hydrogen and oxygen, an introduction portion which introduces an hydrogen-oxygen mixed gas having hydrogen or oxygen as a main component into the reaction vessel, a water vapor pipe of which one end portion is inserted into the reaction vessel and which includes a region in contact with the reaction region with at least a part of the region in contact with the reaction region being formed of a water vapor permeable membrane, a discharge portion through which a gas in the reaction vessel is discharged to an outside, and a cooling portion which cools the water vapor pipe outside the reaction vessel.

First claim

The invention claimed is:

1. A hydrogen-oxygen reaction device comprising:
a reaction vessel including a reaction region filled with a reaction catalyst which promotes a reaction between hydrogen and oxygen;
an introduction portion configured to introduce an hydrogen-oxygen mixed gas having hydrogen or oxygen as a main component into the reaction vessel;
a water vapor pipe of which one end portion is inserted into the reaction vessel and including a region in contact with the reaction region with at least a part of the region in contact with the reaction region being formed of a water vapor permeable membrane;
a discharge portion through which a gas in the reaction vessel is discharged to an outside; and
a cooling portion configured to cool the water vapor pipe outside the reaction vessel.

2. The hydrogen-oxygen reaction device according to claim 1 , wherein the introduction portion is provided at one end portion of the reaction region, and the discharge portion is provided at the other end portion on a side opposite to the one end portion of the reaction region.

3. The hydrogen-oxygen reaction device according to claim 1 , wherein a plurality of water vapor pipes are inserted into the reaction vessel.

4. The hydrogen-oxygen reaction device according to claim 2 , wherein a plurality of water vapor pipes are inserted into the reaction vessel.

5. The hydrogen-oxygen reaction device according to claim 1 , further comprising:
a second reaction vessel having a second reaction region filled with the reaction catalyst;
a hydrogen selective permeable membrane provided at a boundary between the reaction vessel and the second reaction vessel;
a second water vapor pipe of which one end portion is inserted into the second reaction vessel and which includes a region in contact with the second reaction region with at least a part of the region in contact with the second reaction region being formed of a water vapor permeable membrane; and
a second discharge portion configured to discharge a gas in the second reaction vessel to an outside,
wherein the cooling portion cools the second water vapor pipe outside the second reaction vessel.

6. The hydrogen-oxygen reaction device according to claim 2 , further comprising:
a second reaction vessel having a second reaction region filled with the reaction catalyst;
a hydrogen selective permeable membrane provided at a boundary between the reaction vessel and the second reaction vessel;
a second water vapor pipe of which one end portion is inserted into the second reaction vessel and which includes a region in contact with the second reaction region with at least a part of the region in contact with the second reaction region being formed of a water vapor permeable membrane; and
a second discharge portion configured to discharge a gas in the second reaction vessel to an outside,
wherein the cooling portion cools the second water vapor pipe outside the second reaction vessel.

7. The hydrogen-oxygen reaction device according to claim 3 , further comprising:
a second reaction vessel having a second reaction region filled with the reaction catalyst,
a hydrogen selective permeable membrane provided at a boundary between the reaction vessel and the second reaction vessel;
a second water vapor pipe of which one end portion is inserted into the second reaction vessel and which includes a region in contact with the second reaction region with at least a part of the region in contact with the second reaction region being formed of a water vapor permeable membrane; and
a second discharge portion configured to discharge a gas in the second reaction vessel to an outside,
wherein the cooling portion cools the second water vapor pipe outside the second reaction vessel.

8. The hydrogen-oxygen reaction device according to claim 4 , further comprising:
a second reaction vessel having a second reaction region filled with the reaction catalyst;
a hydrogen selective permeable membrane provided at a boundary between the reaction vessel and the second reaction vessel;
a second water vapor pipe of which one end portion is inserted into the second reaction vessel and which includes a region in contact with the second reaction region with at least a part of the region in contact with the second reaction region being formed of a water vapor permeable membrane; and
a second discharge portion configured to discharge a gas in the second reaction vessel to an outside,
wherein the cooling portion cools the second water vapor pipe outside the second reaction vessel.

9. The hydrogen-oxygen reaction device according to claim 1 which is used in a regenerative fuel cell system.

10. The hydrogen-oxygen reaction device according to claim 1 which is used in a regenerative fuel cell system mounted in an aircraft.

Assignees

• Ihi Corp

Inventors

• YACHI Yusaku

Classifications

• B01D2256/16

  Hydrogen · CPC title

• B01D2256/12

  Oxygen · CPC title

• B01D53/268

  by diffusion · CPC title

• Y02T90/40

  Application of hydrogen technology to transportation, e.g. using fuel cells · CPC title

• H01M8/186

  by electrolytic decomposition of the electrolytic solution or the formed water product · CPC title