A system for coupling a chemical looping arrangement and a supercritical CO2 cycle, the system comprising: a fuel reactor having a fuel inlet configured to receive fuel from a fuel source and a carrier inlet configured to receive oxygen carriers, wherein the fuel reactor is configured to react the fuel with the oxygen carriers resulting in reformed or combusted fuel and reduced oxygen carriers; an air reactor in fluid communication with the fuel reactor, the air reactor having an air stream inlet configured to receive an air stream from an air source, wherein the air reactor is configured to receive the reduced oxygen carriers from the fuel reactor and to re-oxidize the reduced oxygen carriers via the air stream resulting in oxygen-depleted air, wherein the air reactor is configured to transport a first portion of the re-oxidized oxygen carriers back to the fuel reactor; a compressor having a CO2 inlet configured to receive a CO2 stream from a CO2 source, wherein the compressor is configured to increase the pressure of the CO2 stream thereby creating a high pressure supercritical CO2 stream; a first heat exchanger in fluid communication with the compressor and the fuel reactor, the first heat exchanger being configured to receive and heat the supercritical CO2 stream, and being configured to receive at least a portion of the reformed or combusted fuel from the fuel reactor, wherein the energy from the reformed or combusted fuel is used to heat the supercritical CO2 stream; a second heat exchanger in fluid communication with the first heat exchanger and the air reactor, the second heat exchanger being configured to receive and further heat the supercritical CO2 stream received from the first heat exchanger, and being configured to receive the oxygen-depleted air and a second portion of the re-oxidized oxygen carriers from the air reactor, wherein the energy from the oxygen-depleted air and the second portion of the re-oxidized oxygen carriers is used to heat the supercritical CO2 stream; and a turbine in fluid communication with the second heat exchanger, the turbine being configured to receive the supercritical CO2 stream from the second heat exchanger and expand the supercritical CO2, whereby the expansion of the supercritical CO2 generates power, and wherein the turbine comprises an outlet for the expanded supercritical CO2; and wherein the expanded supercritical CO2 is used to heat the fuel from the fuel source 102 and the air stream from the air source prior to their respective deliveries to the fuel reactor and the air reactor. a fuel reactor having a fuel inlet configured to receive fuel from a fuel source and a carrier inlet configured to receive oxygen carriers, wherein the fuel reactor is configured to react the fuel with the oxygen carriers resulting in reformed or combusted fuel and reduced oxygen carriers; an air reactor in fluid communication with the fuel reactor, the air reactor having an air stream inlet configured to receive an air stream from an air source, wherein the air reactor is configured to receive the reduced oxygen carriers from the fuel reactor and to re-oxidize the reduced oxygen carriers via the air stream resulting in oxygen-depleted air, wherein the air reactor is configured to transport a first portion of the re-oxidized oxygen carriers back to the fuel reactor; a compressor having a CO2 inlet configured to receive a CO2 stream from a CO2 source, wherein the compressor is configured to increase the pressure of the CO2 stream thereby creating a high pressure supercritical CO2 stream; a first heat exchanger in fluid communication with the compressor and the fuel reactor, the first heat exchanger being configured to receive and heat the supercritical CO2 stream, and being configured to receive at least a portion of the reformed or combusted fuel from the fuel reactor, wherein the energy from the reformed or combusted fuel is used to heat the supercritical CO2 stream; a second heat exchanger in fluid communication with the first heat exchanger and the air reactor, the second heat exchanger being configured to receive and further heat the supercritical CO2 stream received from the first heat exchanger, and being configured to receive the oxygen-depleted air and a second portion of the re-oxidized oxygen carriers from the air reactor, wherein the energy from the oxygen-depleted air and the second portion of the re-oxidized oxygen carriers is used to heat the supercritical CO2 stream; and a turbine in fluid communication with the second heat exchanger, the turbine being configured to receive the supercritical CO2 stream from the second heat exchanger and expand the supercritical CO2, whereby the expansion of the supercritical CO2 generates power, and wherein the turbine comprises an outlet for the expanded supercritical CO2; and wherein the expanded supercritical CO2 is used to heat the fuel from the fuel source 102 and the air stream from the air source prior to their respective deliveries to the fuel reactor and the air reactor.