Carbon capture, utilization and storage (CCUS) is a set of technologies and processes that trap diluted carbon dioxide found in post-combustion flue gas streams (at 3-20% concentration) or directly from the atmosphere (0.04% concentration). The technology concentrates the CO2 to 95%+ purity so that it can either be used to make other products in a closed loop or safely stored deep underground. Typically, CO2 is stored in saline aquifers or depleted oil wells.
We capture CO2 because it’s a notorious greenhouse gas that impacts global warming.