Method and apparatus for separation of carbon dioxide from an off-gas from a fossil-fueled power station
AssigneeSiemens Aktiengesellschaft
InventorsMike Rost, Rüdiger Schneider, Henning Schramm
Life of this patent
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Abstract
A carbon dioxide separation process for a fossil-fueled power station process, including an absorption process and a desorption process, the carbon dioxide separation process includes when a special operating state which deviates from the normal operating state, opening a first bypass so that regenerated solvent from the desorption process is at least partially fed back again into the desorption process; and opening a second bypass so that a laden solvent from the absorption process is at least partially fed back again into the absorption process.
Claims8
A carbon dioxide separation process for a fossil-fueled power station process, including an absorption process and a desorption process, the carbon dioxide separation process comprising:
- establishing a special operating state which deviates from the normal operating state,
- opening a first bypass so that regenerated solvent from the desorption process is at least partially fed back again into the desorption process;
- and
- opening a second bypass so that a laden solvent from the absorption process is at least partially fed back again into the absorption process
- wherein between 80% and 98% of the regenerated solvent from the desorption process is fed back again via the first bypass into the desorption process, and between 2% and 20% is fed to the absorption process, so that heat is introduced into the absorption process, and
- wherein between 80% and 98% of the laden solvent from the absorption process is fed back again via the second bypass in to the absorption process, and between 2% and 20% is fed to the desorption process.
A carbon dioxide separation process for a fossil-fueled power station process, including an absorption process and a desorption process, the carbon dioxide separation process comprising:
- establishing a special operating state which deviates from the normal operating state,
- opening a first bypass so that regenerated solvent from the desorption process is at least partially fed back again into the desorption process;
- and
- opening a second bypass so that a laden solvent from the absorption process is at least partially fed back again into the absorption process,
- wherein no cooling of the solvent which is introduced into the absorption process is carried out in the special operating state compared with the normal operating state.
Dependencies are inferred from the claim text.