To provide a carbon dioxide recovery method capable of suppressing required energy for separating carbon dioxide from exhaust gas and of efficiently recovering carbon dioxide.SOLUTION: A floating body comprises a combustion apparatus to operate on a liquified combustible gas as a fuel and to discharge an exhaust gas, a liquified combustible gas storage part to store a liquified combustible gas, a fuel supply line to supply the liquified combustible gas from the liquified combustible gas storage part to the combustion apparatus, an absorption tower that the carbon dioxide included in the exhaust gas is absorbed into absorbent, a carbon dioxide recovery apparatus with a regeneration tower to separate a gaseous carbon dioxide from the absorbent into which the carbon dioxide is absorbed in the absorption tower, a carbon dioxide liquified apparatus to liquefy the carbon dioxide discharged from the carbon dioxide recovery apparatus which uses the liquified combustible gas supplied from the liquified combustible gas storage part to the combustion apparatus through the fuel supply line as a cold heat source, and a liquified carbon dioxide storage part to store a carbon dioxide liquified by the carbon dioxide liquified apparatus.SELECTED DRAWING: Figure 1
【課題】排ガスから二酸化炭素を分離して液化する際に必要となるエネルギーを抑えて、効率よく二酸化炭素を回収する。【解決手段】浮体は、液化可燃性ガスを燃料として作動し排ガスを排出する燃焼装置と、液化可燃性ガスを貯留する液化可燃性ガス貯留部と、液化可燃性ガス貯留部から燃焼装置に向けて液化可燃性ガスを供給する燃料供給ラインと、排ガスに含まれる二酸化炭素を吸収液に吸収させる吸収塔、及び、吸収塔で二酸化炭素を吸収させた吸収液から気体の二酸化炭素を分離させる再生塔を有する二酸化炭素回収装置と、燃料供給ラインによって液化可燃性ガス貯留部から燃焼装置に供給される液化可燃性ガスを冷熱源として二酸化炭素回収装置から排出される二酸化炭素を液化する二酸化炭素液化装置と、二酸化炭素液化装置で液化した二酸化炭素を貯留する液化二酸化炭素貯留部と、を備える。【選択図】図1
FLOATING BODY AND CARBON DIOXIDE RECOVERY METHOD
浮体及び二酸化炭素回収方法
2023-10-30
Patent
Elektronische Ressource
Japanisch
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