Methods and systems for the electrochemical reduction of carbon dioxide using switchable polarity materials
US-2020255958-A1 · Aug 13, 2020 · US
Electrochemical reaction device and valuable material manufacturing system
US2021079542A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021079542-A1 |
| Application number | US-202016811697-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 6, 2020 |
| Priority date | Sep 17, 2019 |
| Publication date | Mar 18, 2021 |
| Grant date | — |
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Abstract
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An electrochemical reaction device in an embodiment includes: an electrochemical reaction cell including a first accommodation part for accommodating carbon dioxide, a second accommodation part for accommodating an electrolytic solution containing water, or water vapor, a diaphragm provided between the first accommodation part and the second accommodation part, a reduction electrode arranged in the first accommodation part, and an oxidation electrode arranged in the second accommodation part; a detection unit detecting a reaction amount in the electrochemical reaction cell; a regulation unit regulating an amount of the carbon dioxide to be supplied to the first accommodation part; and a control unit controlling the regulation unit based on a detection signal of the detection unit.
First claim
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What is claimed is: 1 . An electrochemical reaction device, comprising: an electrochemical reaction cell comprising a first accommodation part for accommodating carbon dioxide, a second accommodation part for accommodating an electrolytic solution containing water or water vapor, a diaphragm provided between the first accommodation part and the second accommodation part, a reduction electrode to arrange in the first accommodation part, and an oxidation electrode to arrange in the second accommodation part; a detection unit configured to detect a reaction amount in the electrochemical reaction cell; a regulation unit configured to regulate an amount of the carbon dioxide to be supplied to the first accommodation part; and a control unit configured to control the regulation unit based on a detection signal of the detection unit. 2 . The device according to claim 1 , wherein the detection unit comprises a voltage and current monitoring unit to monitor at least one of voltage and current of the electrochemical reaction cell. 3 . The device according to claim 1 , wherein the detection unit comprises a gas analysis unit to analyze a composition of at least one of a first gas discharged from the first accommodation part and a second gas discharged from the second accommodation part. 4 . The device according to claim 1 , wherein the detection unit comprises a flowmeter to measure a flow rate of at least one of a first gas discharged from the first accommodation part and a second gas discharged from the second accommodation part. 5 . The device according to claim 1 , wherein the electrochemical reaction cell comprises a first accommodation vessel to accommodate an electrolytic solution containing the carbon dioxide in a manner that the electrolytic solution is brought into contact with the reduction electrode as the first accommodation part, and the second accommodation vessel to accommodate the electrolytic solution containing water in a manner that the electrolytic solution is brought into contact with the oxidation electrode as the first accommodation part. 6 . The device according to claim 1 , wherein the electrochemical reaction cell comprises a first flow path allowing a gas or electrolytic solution containing the carbon dioxide to flow therethrough in a manner that the gas or the electrolytic solution is brought into contact with the reduction electrode as the first accommodation part, and a second flow path allowing the electrolytic solution containing water or the water vapor to flow therethrough in a manner that the electrolytic solution or the water vapor is brought into contact with the oxidation electrode as the second accommodation part. 7 . A valuable material manufacturing system, comprising: the electrochemical reaction device according to claim 1 ; and a chemical synthesis device connected to the first accommodation part of the electrochemical reaction device, and performing chemical synthesis to obtain a valuable material by using at least a part of a gas discharged from the first accommodation part as a raw material.
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Classifications
Concentration · CPC title
Hydrogen production from non-carbon containing sources, e.g. by water electrolysis · CPC title
- C25B15/02Primary
Process control or regulation · CPC title
with diaphragms · CPC title
Electrolytic production of inorganic compounds or non-metals · CPC title
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- What does patent US2021079542A1 cover?
- An electrochemical reaction device in an embodiment includes: an electrochemical reaction cell including a first accommodation part for accommodating carbon dioxide, a second accommodation part for accommodating an electrolytic solution containing water, or water vapor, a diaphragm provided between the first accommodation part and the second accommodation part, a reduction electrode arranged in…
- Who is the assignee on this patent?
- Toshiba Kk
- What technology area does this patent fall under?
- Primary CPC classification C25B15/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Mar 18 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).