Carbon Capture and Sequestration (CCS) Technology (Basic Remarks)

The solubility of Carbon dioxide (CO₂) in water is one of the most important systems, which is evolved into a complex equilibrium. CO₂ as found in air is in equilibrium with CO₂ in water. CO₂ solubility equilibria in oceans/lakes: The CO₂ solubility equilibria in oceans/lakes is very extensively studied in literature. Storage of the captured CO₂ is currently also being envisaged either in deep geological formations, or in the form of mineral carbonates. Carbon Capture and Sequestration (CCS) applied to a modern conventional power plant could reduce CO₂ emissions to the atmosphere by approximately 80–90% compared to a plant without CCS. CO₂ can be captured out of air or fossil fuel power plant flue gas by adsorption, membrane gas separation, or other adsorption technologies. The capture before expansion, that is, from pressurized gas, is a normal process in almost all industrial CO₂ capture processes, at the same scale as will be required for utility power plants.