System to convert coke in fluid catalytic cracking process by utilizing metal oxides with in-situ CO2 capture

A method for reducing CO2 emissions from a fluid catalytic cracking process by

• a) providing a chemical looping system comprising a regenerator and reducer reactor, an oxidizer reactor and a combustor reactor;
• i) feeding catalyst coke particles and metal oxide particles into the regenerator and reducer reactor of the chemical looping system to produce a plurality of streams comprising a regenerated catalyst stream, a CO2 and H2O stream and a reduced metal oxide particle stream;
• ii) feeding the stream of reduced metal oxide particles and a stream of water vapor into the oxidizer reactor of the chemical looping system to produce a plurality of streams comprising a hydrogen stream and a stream of oxidized metal oxide particles;
• and
• iii) feeding the stream of oxidized metal oxide particles and a stream of air into the combustor reactor of the chemical looping system to produce heat and a stream of metal oxide particles;
• and
• b) sequestering the carbon dioxide of the CO2 and H2O stream of step (a)(i) to reduce the CO2 emissions from the regenerator and reducer reactor.