METHOD AND DEVICE FOR EFFECTIVE AND LOW-TOXIC OPERATION OF THERMAL POWER PLANTS, AND FOR ACCUMULATION AND CONVERSION OF ENERGY Russian patent published in 2011 - IPC F01K23/10 

FIELD: power industry.

SUBSTANCE: electric current is used from temporary excess powers to accumulate in individual underground storages both natural gas, and compressed air and carbon dioxide under high pressure; at that, natural gas storage serves as fuel storage for thermal power plant, compressed air storage serves as buffer storage for uninterrupted operation of air separation plant, mainly for liquid oxygen production, and carbon dioxide storage prepares supercritical carbon dioxide as heat carrier medium that uses flammable gas enthalpy as heat source, unloaded through gas expansion machine connected to generator, cooled, liquefied at use of heat source and again compressed in liquid state till working pressure and treated in temporary high pressure accumulator.

EFFECT: invention allows increasing efficiency of thermal power plants, reducing carbon dioxide emissions and NO_x emissions owing to using pure oxygen for combustion process.

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