Combustion Optimization and Emission Control in Utility Boilers
Summary
Combustion optimisation in utility boilers seeks to maximise fuel conversion and minimise emissions of nitrogen oxides, sulphur oxides, carbon monoxide and particulate matter. Key strategies include precise control of air–fuel mixing, staged combustion and flue gas recirculation to tailor flame temperature and residence time. Advances in burner design, overfire air systems and fuel staging enhance burnout efficiency while suppressing pollutant formation. Computational fluid dynamics and real‐time diagnostics inform dynamic adjustment of operating parameters, supporting compliance with increasingly stringent environmental regulations. Co‐firing of biomass and waste streams further broadens fuel flexibility and contributes to carbon mitigation. Together, these developments underpin safer, more efficient power generation with global significance for energy security and air quality.
Research from Nature Portfolio
No recent Nature Portfolio content available.
Combustion Optimization and Emission Control in Utility Boilers publication trend
The graph below shows the total number of articles in combustion optimization and emission control in utility boilers across all publications each year (not limited to Nature Index journals).
Technical terms
NOx: Collective term for nitrogen monoxide and nitrogen dioxide, major contributors to smog and acid rain.
Staged combustion: Division of combustion air or fuel into primary and secondary streams to control flame temperature and reduce pollutant formation.
Flue gas recirculation (FGR): Recycling a portion of exhaust gases to the burner to lower peak flame temperature and suppress NOx formation.
Overfire air (OFA): Air introduced above the primary combustion zone to complete combustion and reduce unburned carbon.
Pulverised coal combustion: Burning finely ground coal in suspension to promote rapid ignition and complete fuel utilisation.
References
- Lowering further NO x emissions and improving the hopper's overheating environment in a low-NO x down-fired furnace by a staged arch-firing framework with a primary-burner flue gas recirculation. Case Studies in Thermal Engineering (2023).
- Retrofit of a 600 MW Down-Fired Pulverized-Coal Furnace for Low NOx Emission. Energies (2023).
- Application of Fuzzy Neural Networks in Combustion Process Diagnostics. Energies (2023).
Turn complex research questions into confident strategic decisions
When you're under pressure to set direction, justify investment, or understand your competitive position, you need more than raw data — you need trusted insights you can act on.
Benchmark your performance against global peers using robust, methodologically sound analysis.
Combine quantitative metrics with qualitative expert insight to uncover strengths, gaps and emerging opportunities.
Gain tailored, decision-ready recommendations aligned to your strategic priorities.
Talk to us to learn more about our data dashboards and bespoke strategy reports.
Grow research skills, confidence and careers with training built for every stage of the research lifecycle.
Developed with Nature Portfolio journal Editors and internationally renowned experts. Discover three ways to learn:
Self-paced, online courses in convenient bite-sized units, covering key skills across scientific writing, publishing, grant writing, data analysis, and more.
Expert trainer-led workshops with hands-on exercises and real-time feedback across core research skills, delivered via interactive group sessions.
Editor-led workshops combining core principles in writing and publishing, personalised 1:1 feedback from Nature Portfolio Editors and hands-on exercises.
Explore course catalogues and workshop agendas, enquire about the options or request institutional pricing.