Chemical reaction system

Patent metadata

Field	Value
Publication number	US-2018264429-A1
Application number	US-201715695722-A
Country	US
Kind code	A1
Filing date	Sep 5, 2017
Priority date	Mar 16, 2017
Publication date	Sep 20, 2018
Grant date	—

Abstract

A chemical reaction system includes: an electrochemical reaction device including a reduction part to store an electrolytic solution containing carbon dioxide and to reduce the carbon dioxide and thus generate a first product in the electrolytic solution; a reactor including a reaction chamber to store a reaction solution containing the electrolytic solution from the electrochemical reaction device and to chemically react a reactant containing the first product in the reaction solution and thus generate a second product in the reaction solution; and a separation and recovery device including a separation chamber to store a product solution containing the reaction solution from the reactor and to extract and recover at least a part of the second product from the product solution.

First claim

What is claimed is:

1 . A chemical reaction system, comprising:
an electrochemical reaction device including a reduction part to store an electrolytic solution containing carbon dioxide and to reduce the carbon dioxide and thus generate a first product in the electrolytic solution; a reactor including a reaction chamber to store a reaction solution containing the electrolytic solution from the electrochemical reaction device and to chemically react a reactant containing the first product in the reaction solution and thus generate a second product in the reaction solution; and a separation and recovery device including a separation chamber to store a product solution containing the reaction solution from the reactor and to extract and recover at least a part of the second product from the product solution.

2 . The system according to claim 1 ,
wherein the first product contains hydrogen, and wherein the reactant further contains the hydrogen from the electrochemical reaction device.

3 . The system according to claim 1 ,
wherein the first product contains a first carbon compound having two or more carbon chains.

4 . The system according to claim 3 ,
wherein the first carbon compound contains ethylene glycol.

5 . The system according to claim 1 ,
wherein the second product contains a second carbon compound having two or more carbon chains.

6 . The system according to claim 5 ,
wherein the second carbon compound contains ethanol.

7 . The system according to claim 1 , further comprising:
a second reactor including a second reaction chamber to store a second reaction solution containing the reaction solution from the reactor and to chemically react a second reactant containing the second product in the second reaction solution and thus generate a third product containing a third carbon compound; and a second separation and recovery device to extract at least a part of the third carbon compound from the third product supplied from the second reactor.

8 . The system according to claim 7 ,
wherein the third carbon compound contains ethylene.

9 . The system according to claim 1 ,
wherein the electrochemical reaction device further includes an oxidation part to store a second electrolytic solution containing water and to oxidize the water and thus generate oxygen.

10 . The system according to claim 9 , further comprising:
a flow path through which a remainder of the product solution except at least a part of the extracted second product is supplied from the separation and recovery device to the oxidation part.

11 . The system according to claim 9 ,
wherein the reduction part includes a first room to store the electrolytic solution and a cathode inside the first room, and wherein the oxidation part includes a second room to store the second electrolytic solution and an anode inside the second room.

12 . The system according to claim 1 , further comprising:
a buffer tank connecting between the electrochemical reaction device and the reactor and configured to store at least a part of the electrolytic solution to be supplied from the electrochemical reaction device to the reactor.

Assignees

• Toshiba Kk

Inventors

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

Classifications

• C07C1/12

  from carbon dioxide with hydrogen · CPC title

• B01J19/245

  placed in series · CPC title

• C25B9/06

  Chemistry & Metallurgy · mapped topic

• B01J19/24 Primary

  Stationary reactors without moving elements inside (B01J19/08, B01J19/26 take precedence; with stationary particles B01J8/02) · CPC title

• C25B1/04 Primary

  by electrolysis of water · CPC title