Simultaneous desulfurization and denitrification of sintering flue gas via composite absorbent

In this study, experiments on simultaneous absorption of SO2 and NOX from sintering flue gas via a composite absorbent NaClO2/NaClO were carried out. The effects of various operating parameters such as NaClO2 concentration (ms), NaClO concentration (mp), molar ratio of NaClO2/NaClO (M), solution temperature (TR), initial solution pH, gas flow (Vg) and inlet concentration of SO2 (CS) and NO (CN) on the removal efficiencies of SO2 and NO were discussed. Moreover, reaction products were analyzed, the interaction mechanism of NaClO2/NaClO and the removal reaction mechanism were revealed with the main reaction equations summarized. Finally, engineering experiments were carried out to verify the practicability of the technology.190