Numerical investigation of co-firing of RDF and pulverized coal in precalciners: Impacts on combustion characteristics and pollutant emissions

Key Points

• Co-firing RDF with pulverized coal reduces overall pollutant emissions while maintaining combustion efficiency.
• The investigation shows a significant decrease in nitrogen oxide emissions by 20% when using co-firing in precalciners.
• Numerical simulation methods were applied to evaluate combustion characteristics under various fuel ratios and operational conditions.
• Findings suggest co-firing as a valuable approach for improving energy efficiency and reducing emissions in the cement industry.