Chemical reaction system

Patent metadata

Field	Value
Publication number	US-2018257057-A1
Application number	US-201715695316-A
Country	US
Kind code	A1
Filing date	Sep 5, 2017
Priority date	Mar 10, 2017
Publication date	Sep 13, 2018
Grant date	—

Abstract

A chemical reaction system comprises: a supply source to generate a first carbon compound including at least one of carbon monoxide and carbon dioxide; an electrochemical reaction device to generate a second carbon compound including carbon monoxide by a reduction reaction of carbon dioxide; a reactor to generate a product including a third carbon compound by a chemical reaction of a reactant including hydrogen and at least one of the first and second carbon compounds; and a flow path through which the second carbon compound is suppled from the electrochemical reaction device to at least one of the supply source and the reactor.

First claim

What is claimed is:

1 . A chemical reaction system comprising:
a supply source to generate a first carbon compound including at least one of carbon monoxide and carbon dioxide. an electrochemical reaction device to generate a second carbon compound including carbon monoxide by a reduction reaction of carbon dioxide; a reactor to generate a product including a third carbon compound by a chemical reaction of a reactant including hydrogen and at least one of the first and second carbon compounds; and a flow path through which the second carbon compound is supplied from the electrochemical reaction device to at least one of the supply source and the reactor.

2 . The system according to claim 1 ,
wherein the supply source comprises: a discharge source to discharge the carbon dioxide; and a production device to generate hydrogen, wherein the hydrogen in the reactant includes the hydrogen from the production device.

3 . The system according to claim 1 ,
wherein the supply source comprises a reverse shift reactor to generate the carbon monoxide by a reverse shift reaction of carbon dioxide and hydrogen.

4 . The system according to claim 1 ,
wherein the supply source comprises a reformer to generate the carbon dioxide and the hydrogen by a reforming reaction of carbon hydride, and wherein the hydrogen in the reactant includes the hydrogen generated by the reformer.

5 . The system according to claim 1 ,
wherein the supply source comprises: a reformer to generate carbon dioxide and hydrogen by a reforming reaction of carbon hydride, and a reverse shift reactor to generate the carbon monoxide by a reverse shift reaction of the carbon dioxide of the reformer and the hydrogen of the reformer.

6 . The system according to claim 4 ,
wherein the carbon hydride includes methane.

7 . The system according to claim 1 ,
wherein the third carbon compound includes methanol.

8 . The system according to claim 1 ,
wherein the electrochemical reaction device is configured to further generate hydrogen by the reduction reaction, and wherein the hydrogen in the reactant includes the hydrogen from the electrochemical reaction device.

9 . The system according to claim 8 ,
wherein the electrochemical reaction device is configured to further generate oxygen by an oxidation reaction of water, and wherein at least one of the supply source and the reactor is configured to generate at least one of the first and third carbon compounds under an atmosphere including the oxygen.

10 . The system according to claim 9 ,
wherein the electrochemical reaction device comprises: a reaction tank including a first room to store a first reaction solution and a second room to store a second reaction solution, the first reaction solution containing the carbon dioxide, and the second reaction solution containing the water; a cathode disposed inside the first room and configured to reduce the carbon dioxide; an anode disposed inside the second room and configured to oxidize the water; and a power supply connected to the cathode and the anode, and wherein the flow path connects the first room and the reactor.

11 . The system according to claim 10 ,
wherein the electrochemical reaction device further comprises a second flow path through which the first reaction solution circulates between the inside and the outside of the first room.

12 . The system according to claim 10 ,
wherein the power supply has a converter to convert renewable energy into electric energy.

Assignees

• Toshiba Kk

Inventors

• MOTOSHIGE Asahi
• Ono Akihiko
• Sugano Yoshitsune
• Mikoshiba Satoshi

Classifications

• C25B15/081

  Supplying products to non-electrochemical reactors that are combined with the electrochemical cell, e.g. Sabatier reactor · CPC title

• C25B15/00

  Operating or servicing cells · CPC title

• C25B1/23

  Carbon monoxide or syngas · CPC title

• C10K3/026

  Increasing the carbon monoxide content, e.g. reverse water-gas shift [RWGS] · CPC title

• C07C29/152

  characterised by the reactor used · CPC title