RECOMPRESSED TRANSCRITICAL CYCLE WITH VAPORIZATION IN CRYOGENIC OR LOW-TEMPERATURE APPLICATIONS, AND/OR WITH COOLANT FLUID

摘要

The present invention relates to a process for regasifying a fluid and generating electrical energy, wherein a flow of an operating fluid is subjected to the steps of: 1) pumping, said step comprising a low pressure sub-step la) and a high pressure step lb), 2) heating in a recuperator, thus obtaining a heated flow, said step comprising a low temperature heat recovery step 2a) and a high temperature heat recovery step 2b), 3) heating through a high temperature source, thus obtaining a further heated flow, 4) expanding in a turbine, with generation of electrical energy, thus obtaining an expanded flow, 5) cooling by heat exchange with the flow of steps 2b) and 2a), respectively, thus obtaining a cooled flow, 6) condensing said operating fluid flow and heating said fluid, wherein after the step la) of low pressure pumping, a portion of the flow of said operating fluid is subjected to a recompression step, thus obtaining a flow which is combined with the flow of the operating fluid obtained from step 2a).