Method to capture CO2 in flue gases emitted intermittently
A method to capture CO2 from the flue gases emitted intermittently from a power plant burning a synthetic fuel in power-to-fuel-to-power systems is disclosed. The method is characterized by arranging a reservoir of Ca(OH)2 (21) to feed a flow of such solids (1) to a countercurrent carbonator (22) located in the flue gas path (2) of the power plant, separating the resulting carbonated solids (3) from the CO2 depleted-gas (4), storing the carbonated solids (3) in a reservoir of CaCO3 (24) while the power plant is operating, calcining (in 25) a steady flow of carbonated solids (5) to produce CaO solids (6) and CO2 (14) when the power plant is not operating, hydrating (in 27) the resulting CaO solids (6) with water (8) to replenish the reservoir of Ca(OH)2 (21) and feeding the CO2 (14, 7) to the power-to-fuel system (100) to manufacture (in 32) and store (in 33) the synthetic fuel burned when the power plant is operating.
| Main Authors: | , , |
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| Format: | solicitud de patente biblioteca |
| Language: | English |
| Published: |
2022-06-22
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| Online Access: | http://hdl.handle.net/10261/285862 |
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| Summary: | A method to capture CO2 from the flue gases emitted intermittently from a power plant burning a synthetic fuel in power-to-fuel-to-power systems is disclosed. The method is characterized by arranging a reservoir of Ca(OH)2 (21) to feed a flow of such solids (1) to a countercurrent carbonator (22) located in the flue gas path (2) of the power plant, separating the resulting carbonated solids (3) from the CO2 depleted-gas (4), storing the carbonated solids (3) in a reservoir of CaCO3 (24) while the power plant is operating, calcining (in 25) a steady flow of carbonated solids (5) to produce CaO solids (6) and CO2 (14) when the power plant is not operating, hydrating (in 27) the resulting CaO solids (6) with water (8) to replenish the reservoir of Ca(OH)2 (21) and feeding the CO2 (14, 7) to the power-to-fuel system (100) to manufacture (in 32) and store (in 33) the synthetic fuel burned when the power plant is operating. |
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