2. Role of oxygen carriers in different processes

2.1 Chemical Looping Combustion (CLC)

In this process, illustrated in figure 1 , the carbonaceous fuel is burned with oxygen supplied by an oxygen-carrying material, generally a metal oxide (MeO _α ). At the outlet of the first reactor (combustion reactor), fumes consisting mainly of carbon dioxide and water vapor are obtained, along with the oxygen carrier in its reduced state (MeO _α–1 ). Carbon dioxide can easily be separated from water vapor by condensation for capture. While the oxygen carrier in the reduced state is regenerated in a second reactor (regeneration...