The invention discloses an industrial
tail gas
liquefaction energy storage power generation system and a power generation method. The
system is characterized in that industrial
tail gas is subjected to condensation and purification through a
tail gas purification heat storage unit;
heat energy generated during the condensation and purification process is stored;
electric energy is generated from condensed and purified tail gas through a tail gas
turbine power generation unit; useful gases like
sulfur, carbon,
oxygen and
nitrogen are liquefied and separated from tail gas output by the tail gas
turbine power generation unit through a
liquefaction separation storage unit; a pressurization gasification power generation unit drives liquefied useful gases of the
liquefaction separation unit to be gasified, and
electric energy is further generated; and thereby, industrial tail gas liquefaction, separation, storage and gasification power generation are achieved, the comprehensive
utilization rate and emission
reduction rate of industrial tail gas are increased, the energy compensation problem of peak regulating and valley filling is efficiently solved, investment of matching generating sets,
power transmission and distribution facilities and
gas supply networks for
building energy storage power stations or peak regulating power stations is reduced, the
remote power supply loss and running cost are reduced, and the safety, stability and economy of power supply and peak regulating are improved.