Intensified ClO₂ Generation/Utilization Mechanism for the High-Gravity SO₂/NO_x Removal Process within a Rotating Packed Bed

Abstract

Unlike the traditional acid-catalyzed chlorine dioxide (ClO 2 ) generation technology, this study proposes an intensified ClO 2 generation/ utilization mechanism based on rotating packed bed (RPB)-enhanced NaClO 2 synergistic removal of sulfur dioxide (SO 2 ) and nitrogen oxides (NO x ). The essential of the intensification mechanism is the renewal of a gas−liquid interface caused by the high-gravity environment in RPB. A theoretical model based on the penetration theory is derived to evaluate the mechanism. Then, based on the mechanism, a cost-efficient method is developed for the synergistic removal process of SO 2 /NO x . The results indicated that the removal rates for SO 2 and NO x reached 100% and 91.1%. respectively, under optimal conditions. To simulate the coupling effects of the operating variables and find the optimal conditions for the process, a T−S-based fuzzy model is established. The error of the fuzzy model is within ±12%, which proves its reliability for prediction.