CARBON DIOXIDE ELECTROLYTIC DEVICE
First Claim
1. A carbon dioxide electrolytic device comprising:
- a cathode part including a cathode to reduce carbon dioxide and thus produce a carbon compound, a cathode solution flow path to supply a cathode solution to the cathode, and a gas flow path to supply carbon dioxide to the cathode;
an anode part including an anode to oxidize water or hydroxide ions and thus produce oxygen and an anode solution flow path to supply an anode solution to the anode;
a separator to separate the anode part and the cathode part;
a power supply to pass an electric current between the anode and the cathode;
a first pressure control unit to control a pressure of the cathode solution flowing in the cathode solution flow path;
a second pressure control unit to control a pressure of the carbon dioxide flowing in the gas flow path;
a detection unit to detect a production amount of the carbon compound produced by a reduction reaction in the cathode part; and
a differential pressure control unit to control a differential pressure between a pressure of the cathode solution and a pressure of the carbon dioxide so as to adjust the production amount of the carbon compound detected in the detection unit.
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Accused Products
Abstract
A carbon dioxide electrolytic device of an embodiment includes: an anode part including an anode which oxidizes water or hydroxide ions to produce oxygen; a cathode part including a cathode which reduces carbon dioxide to produce a carbon compound, a cathode solution flow path which supplies a cathode solution to the cathode, and a gas flow path which supplies carbon dioxide to the cathode; a separator which separates the anode part and the cathode part; and a differential pressure control unit which controls a differential pressure between a pressure of the cathode solution and a pressure of the carbon dioxide so as to adjust a production amount of the carbon dioxide produced by a reduction reaction in the cathode part.
19 Citations
10 Claims
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1. A carbon dioxide electrolytic device comprising:
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a cathode part including a cathode to reduce carbon dioxide and thus produce a carbon compound, a cathode solution flow path to supply a cathode solution to the cathode, and a gas flow path to supply carbon dioxide to the cathode; an anode part including an anode to oxidize water or hydroxide ions and thus produce oxygen and an anode solution flow path to supply an anode solution to the anode; a separator to separate the anode part and the cathode part; a power supply to pass an electric current between the anode and the cathode; a first pressure control unit to control a pressure of the cathode solution flowing in the cathode solution flow path; a second pressure control unit to control a pressure of the carbon dioxide flowing in the gas flow path; a detection unit to detect a production amount of the carbon compound produced by a reduction reaction in the cathode part; and a differential pressure control unit to control a differential pressure between a pressure of the cathode solution and a pressure of the carbon dioxide so as to adjust the production amount of the carbon compound detected in the detection unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification