To provide a method for generating carbonate warm water under low pressure and preventing the discharge of carbon dioxide gas which is not dissolved yet since there is the risk of discharging the carbon dioxide gas which is not dissolved yet together with the carbonate warm water when a high concentration of carbonate warm water is generated by dissolving the carbon dioxide gas in the warm water.
In a method including a carbon dioxide gas circulation pipeline system, a large amount of carbon oxide gas is injected to the warm water to drastically increase the contact area between the warm water and the carbon dioxide gas, so as to allow the carbon dioxide gas to efficiently dissolves in the warm water even under the comparatively lower pressure. Moreover, the carbon dioxide gas which is not dissolved yet is recovered and injected to the warm water to be supplied again.
OTA YOSHINORI
TERANISHI HIROSHI
