Carbon dioxide capture system and a method of operating a carbon dioxide capture system

A carbon dioxide capture system comprising:

• a first capture system including
• a first absorber configured to cause carbon dioxide contained in a combustion exhaust gas to be absorbed in a first absorbing liquid to produce a first rich liquid, and
• a first stripper configured to cause the carbon dioxide to be released from the first rich liquid produced by the first absorber;
• a second capture system, provided in parallel with the first capture system, including
• a second absorber configured to cause carbon dioxide contained in a combustion exhaust gas to be absorbed in a second absorbing liquid to produce a second rich liquid, and
• a second stripper configured to cause the carbon dioxide to be released from the second rich liquid produced by the second absorber;
• a line separately supplying the combustion exhaust gas into the first absorber of the first capture system and the second absorber of the second capture system,
• a maintenance bulb controlling the pressure in the first stripper,
• a compressor compressing the carbon dioxide from the first and the second stripper, and
• an exhaust line connecting the first stripper and the second stripper to the compressor,
• wherein a temperature at which the second rich liquid releases carbon dioxide is lower than a temperature at which the first rich liquid releases carbon dioxide,
• wherein the exhaust line includes a first exhaust line extending from the first stripper, a second exhaust line extending from the second stripper, and a connecting point connecting the first exhaust line and the second exhaust line,
• wherein the maintenance bulb is provided on the first exhaust line, and
• wherein the opening of the maintenance bulb is adjusted so that the pressure in the first stripper is higher than the pressure in the second stripper.