System and method for high efficiency power generation using a carbon dioxide circulating working fluid

• Main Authors: Brown, Jr., Glenn William, Allam, Rodney John, Palmer, Miles R
• Format: Patent
• Language: English
• Published: 14.08.2018
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; AIR SUPPLY; BLASTING; BURNERS; CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FORCOMBUSTION CHAMBERS, e.g. FIREBRIDGES; COMBINED HEATING AND REFRIGERATION SYSTEMS; COMBUSTION APPARATUS; COMBUSTION ENGINES; COMBUSTION PROCESSES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDEDFOR; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS INCOMBUSTION CHAMBERS; DRAUGHT-INDUCING; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; FLUES; GAS-TURBINE PLANTS; GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS; HEAT PUMP SYSTEMS; HEATING; HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINEPLANTS; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS; MACHINES OR ENGINES IN GENERAL; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; METHODS OF STEAM GENERATION; MIXTURES BY PRESSURE AND COLD TREATMENT; NOT OTHERWISE PROVIDED FOR; REFRIGERATION OR COOLING; REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTIONAPPARATUS; STEAM ACCUMULATORS; STEAM BOILERS; STEAM ENGINE PLANTS; STEAM ENGINES; STEAM GENERATION; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS; USE OF WASTE HEAT OF COMBUSTION ENGINES; WEAPONS

The present invention provides methods and system for power generation using a high efficiency combustor in combination with a CO2 circulating fluid. The methods and systems advantageously can make use of a low pressure ratio power turbine and an economizer heat exchanger in specific embodiments. Additional low grade heat from an external source can be used to provide part of an amount of heat needed for heating the recycle CO2 circulating fluid. Fuel derived CO2 can be captured and delivered at pipeline pressure. Other impurities can be captured.