No climate neutrality without creating a circular carbon economy

For several decades, exponential growth in the use of fossil carbon has created drastic climate disturbances. To mitigate climate change, all uses of virgin fossil carbon must, urgently, be phased out. Many transport sources and industrial processes can easily be electrified and should be where possible. But some sectors like chemical, materials (e.g. lime and steel), aviation and maritime transport will continue to use carbon and the virgin fossil used today will need to be substituted to meet climate neutrality targets. Using CO2 to replace fossil carbon in sectors that will still need hydrocarbons is a key solution to “defossilise” our economy. The concept of Carbon Capture and Utilisation (CCU) is a broad term that covers processes that capture CO2 from flue and process gases or directly from the air and convert it into a variety of products such as fuels, chemicals, and materials. No precise global estimate of the potential mitigation role of CCU technologies exists to date, because of uncertainties in renewable electricity cost scenarios and the low granularity of models that simulate different CCU options. However, CCU technologies have the potential to play a significant role in the mitigation of climate change as described in the latest report from Working Group 3 of the Intergovernmental Panel on Climate Change (IPCC).

For several decades, exponential growth in the use of fossil carbon has created drastic climate disturbances. To mitigate climate change, all uses of virgin fossil carbon must, urgently, be phased out. Many transport sources and industrial processes can easily be electrified and should be where possible. But some sectors like chemical, materials (e.g. lime and steel), aviation and maritime transport will continue to use carbon and the virgin fossil used today will need to be substituted to meet climate neutrality targets. Using CO2 to replace fossil carbon in sectors that will still need hydrocarbons is a key solution to « defossilise » our economy. The concept of Carbon Capture and Utilisation (CCU) is a broad term that covers processes that capture CO2 from flue and process gases or directly from the air and convert it into a variety of products such as fuels, chemicals, and materials. No precise global estimate of the potential mitigation role of CCU technologies exists to date, because of uncertainties in renewable electricity cost scenarios and the low granularity of models that simulate different CCU options. However, CCU technologies have the potential to play a significant role in the mitigation of climate change as described in the latest report of the Working Group 3 of the Intergovernmental Panel on Climate Change (IPCC).

defossilisation Circular Economy Carbon Capture and Utilisation

défossilisation économie circulaire stockage et utilisation du carbone