Method and fossil-fuel-fired power plant for recovering a condensate
AssigneeSiemens Aktiengesellschaft
InventorsRudiger Schneider, Henning Schramm
Life of this patent
Estimating the term…
Abstract
A fossil-fuel-fired power plant, having a combustion device, a CO2 separation device, which is arranged downstream of the fossil-fuel-fired power plant, for removing CO2, and a CO2 compressor station, which is arranged downstream of the CO2 separation device and which has a number of compressor stages and coolers for intermediate cooling is provided. The coolers are connected to the CO2 separation device or the fossil-fuel-fired power plant by means of a condensate line in order to recover condensate. A method for carrying out the condensate recovery is also provided.
Claims5
1-10. (canceled)
A fossil-fired power plant comprising:
- a fossil-fired combustion apparatus with separation of flue gas,
- a CO2 separation apparatus, connected downstream to the fossil-fired power plant, for separating CO2 from the flue gas, comprising an absorber and a desorber which are connected into an absorption medium circuit, and
- a CO2 compressor station, connected downstream to the CO2 separation apparatus and connected to the desorber for discharging separated CO2, and which for liquefying the separated CO2 comprises a compressor with a number of compressor stages,
- wherein a cooler, or a plurality of coolers, is or are connected between the compressor stages for the intercooling of the compressed CO2, and
- wherein the cooler is connected via a condensate line to the absorption medium circuit of the CO2 separation apparatus so that water which condenses during the intercooling of the CO2 can be provided as makeup water flow for the CO2 separation apparatus.
A fossil-fired power plant comprising:
- a fossil-fired combustion apparatus with separation of flue gas,
- a CO2 separation apparatus, connected downstream to the fossil-fired power plant, for separating CO2 from the flue gas, comprising an absorber and a desorber which are connected into an absorption medium circuit, and
- a CO2 compressor station, connected downstream to the CO2 separation apparatus and connected to the desorber for discharging separated CO2, and which for liquefying the separated CO2 comprises a compressor with a number of compressor stages,
- wherein a cooler, or a plurality of coolers, is or are connected between the compressor stages for the intercooling of the compressed CO2, and
- wherein the cooler is connected via a condensate line to a treatment plant of the fossil-fired power plant for providing demineralized water so that water which condenses during the intercooling of the CO2 can be made available to the treatment plant as prepurified water.
A method for the recovery of condensate, which is a constituent of a fossil-fired power plant process, to which a CO2 separation process is connected downstream, wherein a compressor process is connected downstream to the CO2 separation process and comprises a number of process stages between which a cooling process is connected in each case, comprising:
- extracting condensate from the cooling processes, and
- feeding the extracted condensate as prepurified water to a treatment process for demineralized water which comprises the power plant process.
A method for the recovery of condensate, which is a constituent of a fossil-fired power plant process, to which a CO2 separation process is connected downstream, wherein a compressor process is connected downstream to the CO2 separation process and comprises a number of process stages between which a cooling process is connected in each case, comprising:
- extracting condensate from the cooling processes, and
- feeding the extracted condensate as makeup water to the CO2 separation process of a water circuit which includes an absorption and desorption process.
Dependencies are inferred from the claim text.