Post-Combustion Scrubbing

CO2 is removed from exhaust gas after combustion. This technology can be retrofitted to existing equipment. There are many techniques to separate CO2 from flue gases. The best-proven technique at present is to scrub the flue gas with an amine solution. The amine from the scrubber is heated by steam to release high purity CO2 and the CO2-free amine is then reused in the scrubber.

Post-combustion capture

Post-combustion capture can also be retrofitted to coal power stations but some additional measures are needed to minimise contamination of the CO2 capture solvent by impurities in the flue gas, such as sulphur and nitrogen oxides.

Pre-Combustion Decarbonization (Hydrogen)

Natural Gas is converted to hydrogen and CO2 in a reformer. The CO2 is compressed for storage and the hydrogen is mixed with air for combustion, emitting only nitrogen and water.

Algae Cultivation

The algae crop is grown under controlled conditions in a bioreactor environment and matures in 5 days. The resultant algae paste is processed into both vegetable oil and dried algae cake, using industrial processes that utilize readily available food processing equipment.