Electrochemical reaction device

Patent metadata

Field	Value
Publication number	US-10544513-B2
Application number	US-201916286837-A
Country	US
Kind code	B2
Filing date	Feb 27, 2019
Priority date	Jul 31, 2015
Publication date	Jan 28, 2020
Grant date	Jan 28, 2020

Abstract

An electrochemical reaction device includes: a first electrolytic solution tank having a first storage part and a second storage part; a second electrolytic solution tank having a third storage part and a fourth storage part; a first reduction electrode layer immersed in a first electrolytic solution; a first oxidation electrode layer immersed in a second electrolytic solution; a first generator electrically connected to the first reduction electrode and the first oxidation electrode layer; a second reduction electrode layer immersed in a third electrolytic solution; a second oxidation electrode layer immersed in a fourth electrolytic solution; a second generator electrically connected to the second reduction electrode and the second oxidation electrode layer; and at least one flow path out of a first flow path connecting the first storage part and the fourth storage part and a second flow path connecting the second storage part and the third storage part.

First claim

What is claimed is:

1. An electrochemical reaction device, comprising:
first reactors, each first reactor including
a first tank having a first room and a second room,
a first reduction electrode disposed in the first room, and
a first oxidation electrode disposed in the second room;

second reactors, each second reactor including
a second tank having a third room and a fourth room,
a second reduction electrode disposed in the third room, and
a second oxidation electrode disposed in the fourth room;

first pipes connecting the first tanks in series, one of the first pipes connecting the first room of one of the first tanks and the second room of another one of the first tanks;
second pipes connecting the first tanks in series, one of the second pipes connecting the second room of the one of the first tanks and the first room of the other one of the first tanks;
third pipes connecting the second tanks in series, one of the third pipes connecting the third room of one of the second tanks and the fourth room of another one of the second tanks;
fourth pipes connecting the second tanks in series, one of the fourth pipes connecting the fourth room of the one of the second tanks and the third room of the other one of the second tanks;
fifth pipes connecting the series-connected first tanks and the series-connected second tanks in parallel, one of the fifth pipes connecting the first room of the first one of the series-connected first tanks and the first room the first one of the series-connected second tanks, another one of the fifth pipes connecting the first room of the last one of the series-connected first tanks and the first room the last one of the series-connected first tanks; and
sixth pipes connecting the series-connected first tanks and the series-connected second tanks in parallel, one of the sixth pipes connecting the second room of the first one of the series-connected first tanks and the second room the first one of the series-connected second tanks, another one of the sixth pipes connecting the second-room of the last one of the series-connected first tanks and the second room the last one of the series-connected second tanks.

2. The device according to claim 1 , further comprising
a photoelectric converter having a first surface on the first oxidation electrode and a second surface on the first reduction electrode.

3. The device according to claim 1 , further comprising:
a seventh pipe connecting the first and second rooms of the one of the first tanks; and
an eighth pipe connecting the first and second rooms of the one of the second tanks.

4. The device according to claim 3 , further comprising:
a first sensor to acquire a first data indicating at least one parameter selected from the group consisting of a temperature, a flow rate, and a pressure of an electrolytic solution through the seventh pipe; and
a first regulator to regulate the at least one parameter in accordance with the first data.

5. The device according to claim 1 , further comprising
a carbon dioxide source to supply carbon dioxide to the one of the fifth paths,
wherein the one of the fifth pipes is configured so that the first electrolytic solution flows therethrough, the first electrolytic solution containing the carbon dioxide,
wherein the one of the sixth pipes is configured so that the second electrolytic solution flows therethrough, the second electrolytic solution containing water.

6. The device according to claim 1 , further comprising
a third tank connecting the one of the first pipes and the one of the second pipes.

7. The device according to claim 6 , further comprising:
a second sensor to acquire a second data indicating at least one second parameter selected from the group consisting of pH, a temperature, a flow rate, and a pressure of an electrolytic solution in the third tank; and
a second regulator to regulate the at least one second parameter in accordance with the second data.

8. The device according to claim 1 , further comprising:
a third sensor to acquire a third data indicating at least one third parameter selected from the group consisting of a temperature, a flow rate, and a pressure of an electrolytic solution through the other one of the fifth pipes; and
a third regulator to regulate at least one third parameter in accordance with the third data.

Assignees

• Toshiba Kk

Inventors

• Ono Akihiko
• Mikoshiba Satoshi
• Tamura Jun
• Kitagawa Ryota
• Kudo Yuki
• Tsutsumi Eishi
• Yamagiwa Masakazu
• Sugano Yoshitsune

Classifications

• Y02E10/52

  PV systems with concentrators · CPC title

• C25B1/04

  by electrolysis of water · CPC title

• C25B15/02 Primary

  Process control or regulation · CPC title

• C25B9/06

  Chemistry & Metallurgy · mapped topic

• Y02E60/366

  Cross-Sectional Technologies · mapped topic