Method for removing carbon dioxide from exhaust gas
AssigneeAlstom (Switzerland) 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).
Claims5
A method for removing carbon dioxide from a carbon dioxide-containing exhaust gas emitted from a gas turbine plant, wherein the carbon dioxide-containing exhaust gas is also subjected to a downstream heat recovery process, by passing the carbon dioxide-containing exhaust gas through a rotary, regenerative absorber/desorber which is located between the gas turbine plant and the heat recovery process, wherein an absorber portion of the absorber/desorber receives the carbon dioxide-containing exhaust gas and a desorber portion of the absorber/desorber receives a gas stream which removes the carbon dioxide from the desorber thereby producing a carbon dioxide-containing gas.
Dependencies are inferred from the claim text.