Recompressed transcritical cycle with vaporization in cryogenic or low-temperature applications, and/or with coolant fluid

A liquefied natural gas (LNG) regasification line comprising a regasification section for performing a process for regasifying a fluid and generating electrical energy, said process comprising subjecting a flow of an operating fluid to the following steps:

• 1) pumping, said pumping step comprising a low pressure pumping step 1a) using a low-pressure pump and a high pressure pumping step 1b) using a high-pressure pump,
• 2) heating in a recuperator, said heating step comprising a low temperature heat recovery step 2a), thus obtaining a first heated flow, and a high temperature heat recovery step 2b), thus obtaining a second heated flow,
• 3) further 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 in a heat recuperator by heat exchange, in a step 5a) with the second heated flow of step 2b), and in a step 5b) with the first heated flow of step 2a), thus obtaining a cooled flow, and
• 6) condensing said cooled flow of said operating fluid to regasify said operating fluid,
• wherein after the low pressure pumping step 1a), a portion of the flow of said operating fluid output from the low-pressure pump is subjected to a recompression step, thus obtaining a flow which is combined with the first heated flow of the operating fluid obtained from step 2a),
• wherein at least step 6) of said process is carried out inside said regasification section.