Patent ID: 7861526

Claim:
A steam generating plant comprising: a steam generator comprising a combustor, an evaporator, a superheater, an intermediate superheater, a condenser, and feed water pre-heaters heated regeneratively by steam; a set of steam turbines comprising a high pressure turbine, an intermediate pressure turbine, and a low pressure turbine; a condensate circuit connected to the steam generator, said circuit comprising said condenser; a flue gas line connected to the combustor; an air feed line for supplying combustion air to the combustor; an air pre-heater wherein the combustion air is pre-heated by the flue gas, the flue gas line and the air feed line being connected through the air pre-heater; an air line connected to the air feed line at a connection downstream of the air pre-heater; air coolers installed in the air line downstream of the connection, the air coolers being cooled by condensate from said condensate circuit; an air separation plant connected to the air line downstream of the air coolers, the air separation plant having an oxygen outlet, and an oxygen line connecting the oxygen outlet to the combustor.