A Review of Research on Coordinated Air Pollution Control and Carbon Dioxide Reduction in the Silicon Industry: Coordinated Accounting and Emission/Control

In the industrial production of silicon, including the combustion, utilization of fossil fuels and electricity consumption represents a significant source of both air pollutants and CO₂ emissions. It is logical to implement co-control, given that CO₂ and air pollutants have a common source. Nevertheless, there has been a paucity of studies examining the synergistic mechanisms and technical pathways for the prevention and substantial reduction of air pollution and carbon emissions in the silicon industry. It is therefore crucial to gain a comprehensive understanding of the formation mechanisms and treatment status of air pollutants and CO₂ in the silicon industry, with a view to identifying effective and rational co-control technologies that can be deployed in the industry in order to achieve effective control. This paper presents an analysis of the emission characteristics and correlations of air pollutants and CO₂ in the production process of industrial silicon. The possibility of creating an emission inventory of air pollutants and CO₂ in the silicon industry has been considered. This paper analyses and summarizes technical measures for the synergistic control of air pollutants and CO₂ from three perspectives: source control, process management, and end-of-pipe management. It then specifically analyses the synergistic emission reduction benefits of five types of mainstream technical measures using Chinese industrial silicon enterprises as case studies. The aim of this review is to provide some references for subsequent related research in the co-control of air pollutants and CO₂ in industrial silicon enterprises.