POWER PLANT BASED ON SOLID OXIDE FUEL CELLS WITH HIGH EFFICIENCY FACTOR Russian patent published in 2019 - IPC H01M8/06 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, in particular to power plants based on fuel cells (SOFC) for generation of electric power from hydrocarbon fuel and intended for power supply of autonomous consumers. Power plant based on SOFC comprises at least one solid oxide fuel cell with anode and cathode, reformer, module for recirculation and separation of anode gases. Power plant is equipped with afterburner and two heat exchangers, and module of recirculation and separation of anode gases includes connected by pipeline system at least two heat exchangers, water gas reactor (WG), separator, pump, condenser, storage tank, evaporator (steam generator). Output from anode space SOFC is connected in series with first and second heat exchangers (HE), reactor WG, separator, pump, second HE, reformer, first HE and inlet to anode space SOFC, besides, the separator is connected to the condenser, which is connected to the afterburner by one straight pipeline for the gaseous product, the other direct pipeline for water is connected in series with the accumulating tank, the evaporator, the third HE and the pump and the return pipeline is connected to the fourth HE and the input into the cathode space. Afterburner is connected in series by the offgas pipeline to the fourth and third HE, the evaporator (or the evaporator inlet and outlet), and the cathode space outlet is connected to the afterburner. In the separator a porous membrane is installed, which operates as per the Knudsen diffusion mechanism.

EFFECT: proposed invention provides increase in efficiency of power plant based on solid oxide fuel cells, increases electric power of SOFC battery and enables to use a wide range of hydrocarbons as fuel; all the foregoing allows to increase energy efficiency of the separation process, as well as simplify the implementation of this process.

9 cl, 3 dwg