Chemical loop combustion system with downstream water-gas shift reactor stage

An integrated system, comprising:

• a gasification subsystem comprising (a-i) a fuel heater suitable for heating a liquid fuel stream, (a-ii) a gasifier located downstream of, and fluidly connected to, the fuel heater, the gasifier being configured to gasify the liquid fuel stream with an oxygen-rich stream to form a syngas stream, and (a-iii) a gas splitter located downstream of, and fluidly connected to, the gasifier, the gas splitter being configured to split the syngas stream into a first syngas substream and a second syngas substream;
• a chemical looping combustion (CLC) subsystem comprising (b-i) a reducer located downstream of, and fluidly connected to, the gas splitter, the reducer being configured to oxidize the first syngas substream in the presence of an oxygen carrier to form a CO2/H2O stream, the oxygen carrier being reduced to a reduced oxygen carrier, and (b-ii) an oxidizer located downstream of, and fluidly connected to, a first solid-gas separator, the oxidizer being configured to oxidize the reduced oxygen carrier in the presence of an oxygen-containing stream to regenerate the oxygen carrier;
• a power generation subsystem comprising (c-i) a combustor located downstream of, and fluidly connected to, the gas splitter and the oxidizer, the combustor combusting the second syngas substream in the presence of the oxygen-containing stream to form an exhaust stream, and (c-ii) a first gas turbine located downstream of, and fluidly connected to, the combustor for generating gas turbine shaft work with the exhaust stream;
• a heat recovery-steam generation (HRSG) subsystem comprising (d-i) a first heat exchanger located downstream of, and fluidly connected to, the reducer, the first heat exchanger being configured to form steam by heating a water stream with the CO2/H2O stream;
• and
• a water-gas shift reactor stage downstream of the gas splitter of the gasification subsystem.