Device for removing carbon dioxide from exhaust gas
AssigneeALSTOM Technology Ltd
InventorsArmin Schimkat, Juergen Baum
Life of this patent
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Abstract
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).
Claims15
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.
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.
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.
Dependencies are inferred from the claim text.