초록 ▼

In a method for removing carbon dioxide from the exhaust gas from a gas turbine plant (11), which exhaust gas is subjected to a downstream heat recovery process (12, 33), preferably in the heat recovery steam generator (33) of a water/steam cycle ( 12), a simplification of the plant engineering is a

In a method for removing carbon dioxide from the exhaust gas from a gas turbine plant (11), which exhaust gas is subjected to a downstream heat recovery process (12, 33), preferably in the heat recovery steam generator (33) of a water/steam cycle ( 12), a simplification of the plant engineering is achieved by the fact that the carbon dioxide is removed from the exhaust gas (39) between the gas turbine plant (11) and the heat recovery process (12, 33), and that a rotating, regenerative absorber/desorber ( 22) is used to remove the carbon dioxide, the absorber side of which absorber/desorber is connected into the exhaust gas stream (39) and the desorber side of which absorber/desorber is connected into a carbon dioxide cycle (38).

대표청구항 ▼

The invention claimed is: 1. A device for removing carbon dioxide from a carbon dioxide-containing exhaust gas stream exhausted from a gas turbine plant, the device comprising a gas turbine plant and downstream means for recovering heat from the exhaust gas stream exhausted from the gas turbine pla

The invention claimed is: 1. A device for removing carbon dioxide from a carbon dioxide-containing exhaust gas stream exhausted from a gas turbine plant, the device comprising a gas turbine plant and downstream means for recovering heat from the exhaust gas stream exhausted from the gas turbine plant, wherein a rotating, regenerative absorber/desorber adapted to remove carbon dioxide from the exhaust gas stream is arranged between the gas turbine plant and the heat recovery means, the absorber side of the absorber/desorber is connected to receive the exhaust gas stream and the desorber side of the absorber/desorber at which carbon dioxide is desorbed is connected into a carbon dioxide cycle in which carbon dioxide is circulated. 2. The device as claimed in claim 1, wherein a first heat exchanger is arranged between the gas turbine plant and the absorber/desorber to heat the carbon dioxide stream circulated in the carbon dioxide cycle. 3. The device as claimed in claim 2, wherein the heat recovery means comprises a water/steam cycle with a heat recovery steam generator, and wherein a second heat exchanger for superheating the steam in the water/steam cycle is arranged between the first heat exchanger and the absorber/desorber. 4. The device as claimed in claim 2, wherein an additional means for heating the exhaust gas stream from the gas turbine plant is arranged upstream of the first heat exchanger. 5. The device as claimed in claim 6, wherein a carbon dioxide outlet branches off from the carbon dioxide which is circulated in the carbon dioxide cycle, and wherein a heat exchanger for cooling the carbon dioxide which has been branched off is arranged in the carbon dioxide outlet. 6. The device as claimed in claim 1, wherein the absorber/desorber is constructed in the manner of a coated regenerative heat exchanger and is equipped with a large reactive surface for the absorption and desorption of carbon dioxide. 7. The device as claimed in claim 6, wherein an intermediate layer of low thermal conductivity is arranged between the reactive coating and the core material which bears the reactive coating. 8. A device for removing carbon dioxide from a carbon dioxide-containing exhaust gas stream exhausted from a gas turbine plant, the device comprising: a gas turbine plant; a heat recovery part downstream from the gas turbine plant, the heat recovery part being adapted to recover heat from the exhaust gas stream exhausted from the gas turbine plant; and a rotating, regenerative absorber/desorber arranged between the gas turbine plant and the heat recovery part, the absorber/desorber being adapted to remove carbon dioxide from the exhaust gas stream and including an absorber side connected to receive the exhaust gas stream and a desorber side at which carbon dioxide is desorbed is connected into a carbon dioxide cycle in which carbon dioxide is circulated. 9. The device as claimed in claim 8, comprising a first heat exchanger arranged between the gas turbine plant and the absorber/desorber to heat the carbon dioxide stream circulated in the carbon dioxide cycle. 10. The device as claimed in claim 9, wherein the heat recovery part comprises a water/steam cycle with a heat recovery steam generator. 11. The device as claimed in claim 9, wherein a second heat exchanger for superheating the steam in the water/steam cycle is arranged between the first heat exchanger and the absorber/desorber. 12. The device as claimed in claim 9, comprising a combustion chamber for heating the exhaust gas stream from the gas turbine plant arranged upstream of the first heat exchanger. 13. The device as claimed in claim 8, comprising: a carbon dioxide outlet which branches off from the carbon dioxide which is circulated in the carbon dioxide cycle; and a heat exchanger for cooling the carbon dioxide which has been branched off arranged in the carbon dioxide outlet. 14. The device as claimed in claim 8, wherein the absorber/desorber comprises a coated regenerative heat exchanger which includes a reactive surface for the absorption and desorption of carbon dioxide. 15. The device as claimed in claim 14, comprising an intermediate layer of low thermal conductivity arranged between the reactive coating and the core material which bears the reactive coating.