Research Progress on the Synergistic Treatment of Multi Pollutants at Low Temperatures Using Carbon-Based Materials

Hg0, VOCs and NO are the main pollutants in sintering flue gas from the steel industry. In the wake of the swift progression of China’s steel sector over recent years, the separate removal of gaseous pollutants can no longer meet the current ultra-low emission requirements. The efficient collaborative management of multiple pollutants has low operating costs and conforms to the mainstream of ultra-low emission transformation. The efficient multi-pollutant synergistic treatment has low operating costs in comparison to traditional individual removal of gaseous pollutants. Furthermore, it aligns with the mainstream of ultra-low emission retrofit in China. How to achieve collaborative control of Hg0, VOCs and NO has become the focus of current research. Carbon-based materials (CBMs) have long been favored worldwide as the mainstream adsorbents for removing multiple air pollutants from flue gas. Based on the summary of the mechanisms for simultaneous removal of pollutants, this paper analyzes the future development directions of CBMs for the concurrent detoxification of Hg0, VOCs and NO, and provides a prospect for future research, providing technical support and theoretical basis for low-temperature cooperative control of pollutants in sintering, waste incineration and other processes.