Flameless combustion role in the mitigation of NO_Xemission: a review

Abstract

SUMMARYNitrogen oxide formation is one source of pollution emission in fossil fuel combustion. Numerous technologies, such as flameless combustion, have been introduced to prevent such formation. This paper presents a panorama of flameless combustion and its principles. The influence of this technology on air preheats and gas diluents is discussed, as well as the effect of the firing mode on thermal NO X . The benefits of flameless combustion, including its energy conservation capability and capability to reduce pollutant emissions such as NO X emission to overcome environmental dilemmas in combustion, are discussed in this paper.

Analysis and Treatment Measures of Continuous Emission Monitoring System Fouling in a Coal-Fired Power Plant after Ultra-Low Emission Transformation

“…With appropriate catalysts, Equations 5 to 8 can be reacted from 200℃ to 400℃. Therefore, the catalyst is mainly used to reduce the activation energy of the main reaction so that it can be carried out at a lower temperature and speed up the main reaction rate while inhibiting the progress of side reactions [16,17].…”

Feasibility Study of Bio-fuel As a Sustainable Product of Biomass: An Overview of Its Fundamentals, Application and Environmental Impact

“…These product compounds contribute to the generation of sulfuric acid and nitric acid in oxide droplets in the environment. The above acids can precede both wet (e.g., by droplets) and dry (attached to solids accumulated on Earth), causing acidification of water and soil [10,11].…”

Numerical study of further NO x emission reduction for coal MILD combustion by combining fuel‐rich/lean technology

“…[2][3][4][5][6][7][8][9][10][11][12][13] The essence of this technology for coal combustion is to achieve strong recirculation of the injected streams so that the coal particles are heated and combusted in a highly substoichiometric condition. [2][3][4][5][6][7][8][9][10][11][12][13] The essence of this technology for coal combustion is to achieve strong recirculation of the injected streams so that the coal particles are heated and combusted in a highly substoichiometric condition.…”

“…Due to the potential of significant reduction of NO x emission, moderate or intense low-oxygen dilution (MILD) combustion has become a hot topic within the combustion committee worldwide and has been studied intensively. [2][3][4][5][6][7][8][9][10][11][12][13] The essence of this technology for coal combustion is to achieve strong recirculation of the injected streams so that the coal particles are heated and combusted in a highly substoichiometric condition. 14 As a result, the peak temperature is reduced, and thermal-NO formation is mitigated.…”