Adsorption and release device of carbon dioxide

• Main Authors: KAMAI RYO, YAMAKI TAKEYUKI, SEKIGUCHI TAKASHI, SUZUKA MICHIO
• Format: Patent
• Language: English
• Published: 08.12.2015
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; NON-METALLIC ELEMENTS; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING

An object of the present invention is to provide a carbon dioxide adsorption and release device, which has high adsorptivity, and also consumes low energy upon adsorption and desorption. The carbon dioxide adsorption and release device is characterized by including a pair of electrodes (electrode 1 and electrode 2) provided opposite to each other; an electrolyte 3 filled between the respective electrodes 1 and 2 of the pair of electrodes; and a porous body 4 provided on the electrode 1 of the pair of electrodes, wherein the electrolyte 3 absorbs carbon dioxide thereby dissolving the carbon dioxide therein, and thus enabling formation of carbonic acid ions or hydrogen carbonate ions; and the carbonic acid ions or hydrogen carbonate ions are electrostatically adsorbed on a surface of the porous body 4 when a forward voltage is applied to the pair of electrodes by the porous body 4, and the carbonic acid ions or hydrogen carbonate ions are electrostatically released from a surface of the porous body 4 when a backward voltage is applied to the pair of electrodes.