SYSTEM FOR STORING CO2 IN SHALLOW OCEAN SEDIMENT AND METHOD THEREFOR

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PURPOSE : A system and a method for storing carbon dioxide in the shallow ocean floor are provided to store in the shallow ocean floor by alleviating geological restricting elements. CONSTITUTION : A system for storing carbon dioxide in the shallow ocean floor includes an ocean platform(110), a pipe(120), a promoter supplying part(130), and a hydrate generated state monitoring part(140). The pipe is vertically extended from the ocean platform to the lower part of sediment soil on the shallow ocean floor. The promoter supplying part is arranged in the pipe to be located at the upper part of sediment soil. The promoter supplying part supplies a hydrate generating promoter to surroundings. The hydrate generating promoter is supplied to the upper part of the sediment soil according to the control of the ocean platform. Carbon dioxide is supplied to the lower part of the sediment soil through the pipe. The hydrate generated state monitoring part monitors the state of a carbon dioxide hydrate covering layer. The carbon dioxide hydrate covering layer is generated by the reaction of the hydrate generating promoter and carbon dioxide.