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 carbon dioxide flowing through the first heat exchanger the carbon dioxide formed in a carbon dioxide source;
• e) flowing the fuel gas through a second heat exchanger to heat steam flowing through the second heat exchanger, the steam subsequently introduced into the reaction chamber;
• f) flowing the fuel gas from the second heat exchanger to a first compressor;
• g) flowing the fuel gas to a first turbine to produce power;
• h) flowing compressed fuel gas from the first compressor to a first combustor, flowing the carbon dioxide from the first heat exchanger to the first combustor, and flowing oxygen from an oxygen source to the first combustor;
• i) flowing combustion gases from the first combustor to a first gas turbine to drive the turbine to produce power;
• j) flowing the expanded fuel gas from the first turbine to a second combustor, flowing oxygen to the second combustor, and flowing the expanded gases from the first gas turbine to the second combustor;
• k) flowing the combustion gases from the second combustor to a second gas turbine to produce power;
• l) flowing water through a third heat exchanger to form steam, the steam flowing through the second heat exchanger and then to the reaction chamber;
• m) flowing water 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;
• and
• n) flowing the carbon dioxide from its source to a separation and condensation unit to form liquid carbon dioxide;
• and
• o) flowing oxygen formed in the separation and condensation unit through the third heat exchanger and into the second turbine the oxygen expanding through the second turbine, a portion thereof flowing into the reaction chamber and another portion flowing to the second combustor.