CO2 CAPTURE USING SOLAR THERMAL ENERGY

摘要

At an absorber station, CO₂ is absorbed from a gas stream into a suitable solvent whereby to convert the solvent into a CO₂-enriched medium, which is conveyed to a desorber station, typically nearer to a solar energy field than to the absorber station. Working fluid, heated in the solar energy field by insolation, is employed to effect desorption of CO₂ from the CO₂-enriched medium, whereby to produce separate CO₂ and regenerated solvent streams. The regenerated solvent stream is recycled to the absorber station. The CO₂-enriched medium and/or the regenerated solvent stream may be selectively accumulated so as to respectively optimise the timing and rate of absorption and desorption of CO₂ and/or to provide a storage of solar energy.