6. Capture, separation, concentration, storage and recovery

The treatment of CO ₂ releases involves a chain of specific steps that can be schematized by the figure 5 . In order to minimize GHG emissions into the atmosphere, CO ₂ capture is the first step. There are several possible approaches depending on the operations described below:

• CO ₂ capture and storage (CCS) ;

• CO ₂ capture and utilization (CCU) ;

• direct capture of CO ₂ from the air (DAC);...