Simultaneous Desulfurization and Denitrification of Mud-Phosphorus Emulsion

Abstract

In this study, a new technology was proposed for removing SO2 and NO from industrial flue gas via wet catalytic oxidation technology that uses a mud-phosphorus emulsion as the absorption liquid. In this study, the optimal reaction temperature, gas rate, oxygen content, and mud-phosphorus emulsion solid-to-liquid ratio were determined. At a reaction temperature of 60°C, the gas flow rate was 300 mL·min−1, the oxygen content was 20%, and the solid-to-liquid ratio in the mud-phosphorus emulsion was 0.125 g·mL−1. When the system was operated for 880 min, the desulfurization rate was 99%; when the system was operated for 860 min, the denitrification rate was still 99%, and the desulfurization and denitrification effects were ideal. The proposed technology opens new avenues for the purification and resource utilization of sulfur-containing flue gas.