Numerical Simulation and Application Research of Wet Desulfurization Flue Gas Treated by Flue Gas Condensation

The processes of flue gas flow, heat transfer, water vapor condensation, and SO₂ and NO removal of the flue gas condensation method were all numerically simulated. To confirm the impact of the technology on flue gas temperature reduction, flue gas resistance, water vapor condensation, and removal of dust, SO₂ and NO, performance test of the flue gas condensation method was carried out under the rated working condition. Results show that, based on ultra-clean flue gas emission, the flue gas condensation method can effectively remove SO₂, NO, dust, and other pollutants from flue gas in addition to recovering water from flue gas, further enhancing the environmental performance of thermal power plants. Compared with the performance test results, the numerical simulation results of flue gas condenser outlet temperature, water vapor condensation rate, and NO removal rate are basically consistent with the performance test data, and the deviation of flue gas flow pressure loss data is about 9.9%, and the deviation of SO₂ removal rate data is about 14.7%, which are within the acceptable range for engineering.