CO2, a greenhouse gas and a prime factor in global warming, is partially produced as a result of the burning of fossil fuels. Factories which emit large quantities of CO2 can be equipped with a CO2 capture and storage solution to prevent the mass release of the gas into the atmosphere.
Three technologies are envisaged for capturing CO2:
The CO2 is then dried and purified, which is essential for eliminating any water and impurities contained in the emissions.
Once the CO2 has been transported to the storage site by boat or by pipe it is finally injected into the sub-soil where it is trapped, either in exhausted or nearly exhausted oil or natural gas wells, or in deep saline aquifers.
Air Liquide is involved in every stage of the CO2 capture and storage chain and has a sound knowledge of all three technological solutions designed to concentrate the CO2. The Group’s main area of innovation is that of oxy-combustion.