Abstract: In one embodiment, a carbon dioxide capturing system includes an absorber to discharge an absorption liquid having absorbed carbon dioxide, a regenerator to discharge the absorption liquid having released the carbon dioxide, a first line to introduce the absorption liquid discharged from the absorber to the regenerator, a second line to introduce the absorption liquid discharged from the regenerator to the absorber, and a heat exchanger to exchange heat between absorption liquids flowing in the first and second lines. The system further includes a bypass line to branch from the first line between the absorber and the heat exchanger and introduce the absorption liquid to the regenerator without passing through the heat exchanger, a valve on the bypass line, an instrument to measure a value indicating a state of the regenerator, and a controller to control a degree of opening of the valve based on the measured value.

Abstract: In one embodiment, a carbon dioxide capturing system includes an absorber to discharge an absorption liquid having absorbed carbon dioxide, a regenerator to discharge the absorption liquid having released the carbon dioxide, a first line to introduce the absorption liquid discharged from the absorber to the regenerator, a second line to introduce the absorption liquid discharged from the regenerator to the absorber, and a heat exchanger to exchange heat between absorption liquids flowing in the first and second lines. The system further includes a bypass line to branch from the first line between the absorber and the heat exchanger and introduce the absorption liquid to the regenerator without passing through the heat exchanger, a valve on the bypass line, an instrument to measure a value indicating a state of the regenerator, and a controller to control a degree of opening of the valve based on the measured value.

Abstract: In one embodiment, a carbon dioxide separating and capturing apparatus includes an absorption tower to allow a gas containing carbon dioxide to contact with an absorption liquid and discharge a rich liquid, a regeneration tower to cause the absorption liquid to release a gas containing the carbon dioxide and discharge a lean liquid, and first and second regenerative heat exchangers to heat the rich liquid with the lean liquid. The first regenerative heat exchanger heats the rich liquid with the lean liquid from the second regenerative heat exchanger and discharges the rich liquid in a liquid phase, and the second regenerative heat exchanger heats the rich liquid in the liquid phase with the lean liquid from the regeneration tower. The lean liquid from the first regenerative heat exchanger and the rich liquid from the second regenerative heat exchanger are fed to the absorption and regeneration towers, respectively.

Abstract: In one embodiment, a carbon dioxide separating and capturing apparatus includes an absorption tower to allow a gas containing carbon dioxide to contact with an absorption liquid and discharge a rich liquid, a regeneration tower to cause the absorption liquid to release a gas containing the carbon dioxide and discharge a lean liquid, and first and second regenerative heat exchangers to heat the rich liquid with the lean liquid. The first regenerative heat exchanger heats the rich liquid with the lean liquid from the second regenerative heat exchanger and discharges the rich liquid in a liquid phase, and the second regenerative heat exchanger heats the rich liquid in the liquid phase with the lean liquid from the regeneration tower. The lean liquid from the first regenerative heat exchanger and the rich liquid from the second regenerative heat exchanger are fed to the absorption and regeneration towers, respectively.

Abstract: A carbon-dioxide-capture-type steam power generation system 1 according to the present invention comprises a boiler 6 producing an exhaust gas 5 by combusting a fuel 2 and having a flue 8; an absorbing unit 40 being configured to absorb the carbon-dioxide contained in the exhaust gas 5 into an absorbing solution; and a regenerating unit 44 being configured to release the carbon dioxide gas from the absorbing solution absorbing the carbon dioxide and discharge the released carbon dioxide gas. Further, in this system, a reboiler 49 is provided for receiving a heating-medium as heat source, producing a steam 43 and supplying the produced steam 43 to the regenerating unit 44. Additionally, in the flue 8 of the boiler 6, a boiler-side heat exchanger 61 is provided for heating the heating-medium by the exhaust gas 5 passing therethrough.

Abstract: Disclosed is a measurement device with which it is possible to quickly measure the carbon dioxide content of an absorbent solution circulating through a carbon dioxide recovery system.

Abstract: A carbon-dioxide-capture-type steam power generation system 1 according to the present invention comprises a boiler 6 producing an exhaust gas 5 by combusting a fuel 2 and having a flue 8; an absorbing unit 40 being configured to absorb the carbon-dioxide contained in the exhaust gas 5 into an absorbing solution; and a regenerating unit 44 being configured to release the carbon dioxide gas from the absorbing solution absorbing the carbon dioxide and discharge the released carbon dioxide gas. Further, in this system, a reboiler 49 is provided for receiving a heating-medium as heat source, producing a steam 43 and supplying the produced steam 43 to the regenerating unit 44. Additionally, in the flue 8 of the boiler 6, a boiler-side heat exchanger 61 is provided for heating the heating-medium by the exhaust gas 5 passing therethrough.