Patent ID: 8801836

Claim:
A method for recovery of carbon dioxide from a carbon dioxide containing gas comprising the steps of: a. cooling a first gas stream G 1 in a reboiler (A 1 ) to provide a second gas stream G 2 ; b. preparing the second gas stream G 2 to provide at least a portion of a third gas stream G 3 c. absorbing the third gas stream G 3 in an alkanolamine absorbing agent to provide a first carbon dioxide rich liquid (L 1 ) and a carbon dioxide lean gas (G 4 ); d. optionally pressurising and heat exchanging the first carbon dioxide rich liquid (L 1 ) to provide a second carbon dioxide rich liquid (L 2 ); e. separating the second carbon dioxide rich liquid (L 2 ) in a stripper (A 3 ) in order to obtain a carbon dioxide rich gas (G 5 ) and a first carbon dioxide lean liquid (L 3 ′); f. reboiling the first carbon dioxide lean liquid (L 3 ′) in the reboiler (A 1 ) in order to obtain a second carbon dioxide lean liquid (L 3 ) and a gas G 5 ′ which is further separated in the stripper (A 3 ), in order to give the second carbon dioxide lean liquid (L 3 ) and the first carbon dioxide rich gas G 5 ; wherein the first carbon dioxide lean liquid (L 3 ′) is reboiled using the gas stream G 1 and the second carbon dioxide lean liquid (L 3 ) is returned to the absorber (A 2 ); and wherein the method prior to step a comprises the step of feeding a combustion gas GO to a means for utilizing heat, in order to provide the gas stream G 1 , the gas stream G 1 having a temperature that is lower than the temperature of GO.