The carbon dioxide recovery system includes a carbon dioxide absorption tower which absorbs and removes carbon dioxide from the combustion exhaust gas of a boiler by an absorption liquid, and a regeneration tower which heats and regenerates the loaded absorption liquid with carbon dioxide. The regeneration tower includes plural loaded absorption liquid heating means, which heat the loaded absorption liquid and remove carbon dioxide in the loaded absorption liquid. The turbine includes plural lines which extract plural kinds of steam with different pressures from the turbine and which supply the plural kinds of steam to the plural loaded absorption liquid heating means as their heating sources. The plural lines make the pressure of supplied steam increase from a preceding stage of the plural loaded absorption liquid heating means to a post stage of the plural loaded absorption liquid heating means.

 
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