Carbon Capture, Use and Storage (CCUS) consists in trapping CO2 emitted in vast quantities during industrial processes such as power, steel or cement productions, to ultimately store it in subsoil away from atmosphere or re-use it. Once captured, CO2 no longer piles up in atmosphere, and thus plays no part in the greenhouse effect nor climate change.
The CO2 is captured from the industrial smokes of refineries, petrochemical industries, or power plants. For offshore storage, CO2 can be transported via sub-marine pipeline for short distances, or via ship for longer distances (from 500 to 1000km). For onshore storage, it goes through pipelines to eventually be stored – from 800m to 3000m deep or more – into non exploited coal seams, deep saline Aquifers, or oil and natural gas reservoirs coming to the end of their life. © Agence idé for Total