S cycle electric power system

A method for generating power which comprises:

• a) introducing steam, oxygen and coal into a reaction chamber;
• b) forming a fuel gas in the reaction chamber;
• c) flowing the fuel gas through a first heat exchanger;
• d) heating air flowing through the first heat exchanger;
• e) flowing a first portion of fuel gas through a second heat exchanger to a first compressor;
• f) flowing a second portion of fuel gas to a first turbine to produce power;
• g) flowing compressed fuel gas from the first compressor to a first combustor, flowing the air from the first heat exchanger to the first combustor;
• h) flowing combustion gases from the first combustor to a first gas turbine to drive the turbine to produce power;
• i) flowing the expanded fuel gas from the first turbine to a second combustor, and flowing the expanded gases from the first gas turbine to the second combustor;
• j) flowing the combusted gases from the second combustor to a second gas turbine to produce power;
• k) flowing water through a third heat exchanger to form steam, the steam flowing through the second heat exchanger and then to the reaction chamber;
• l) flowing condensate comprising the exhaust from a steam turbine through said third heat exchanger to convert the water flowing therethrough to the steam, the steam turbine producing power;
• m) flowing the air from a source through an air separation unit to produce the oxygen which formed oxygen flows through the third heat exchanger and into the second turbine the oxygen expanding through a second turbine, the expanded oxygen flowing into the reaction chamber.