Carbonation device and method of carbonation using the same

A carbonation device comprising:

• a storage tank configured to store a carbonation subject solution, wherein the carbonation subject solution is lithium hydroxide;
• a droplet spray unit configured to spray the lithium hydroxide from the storage tank in droplets, wherein the droplet spray unit includes a high-pressure pump and a droplet spray nozzle, the high-pressure pump being coupled to the storage tank, and wherein the droplet spray unit is configured to change a particle diameter of the droplets by adjusting a pressure of the high-pressure pump and a nozzle diameter of the droplet spray nozzle;
• a carbonation reaction tank coupled with the droplet spray unit to receive the droplet-sprayed lithium hydroxide through the droplet spray nozzle that is mounted to an upper part of the carbonation reaction tank, wherein the carbonation reaction tank is filled with a carbonation gas under a predetermined pressure to provide a slurry by a carbonation reaction of the droplet-sprayed lithium hydroxide with the filled carbonation gas;
• a carbonation gas supply unit configured to supply the carbonation gas into the carbonation reaction tank to maintain the carbonation gas in the carbonation reaction tank under the predetermined pressure;
• a slurry outlet unit configured to eject the slurry from the carbonation reaction tank to maintain the slurry formed in the carbonation reaction tank within a predetermined level;
• and
• an alkali solution input unit disposed in the carbonation reaction tank to adjust a pH of the slurry formed in the carbonation reaction tank,
• wherein the alkali solution input unit comprises:
• a pH measuring unit configured to automatically measure the pH of the slurry in the carbonation reaction tank;
• an alkali solution input pump configured to supply an alkali solution to the carbonation reaction tank according to the pH measured by the pH measuring unit;
• and
• an alkali solution input nozzle connected to the alkali solution input pump and configured to input the alkali solution into the carbonation reaction tank.