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Abstract

The carbon dioxide recovery apparatus has a dryer having a hygroscopic agent for drying a gas, and a separator for separating carbon dioxide from the gas dried by the dryer and discharging a residual gas from which carbon dioxide has been separated. The recovery apparatus further includes an introduction part for introducing a regeneration gas from outside for regenerating the hygroscopic agent, a regeneration system capable of supplying one of the regeneration gas introduced from the introduction part and the residual gas discharged from the separator to the dryer, and a switching mechanism for switching supply by the regeneration system between the regeneration gas and the residual gas in response to regeneration of the hygroscopic agent.

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First Claim