Formation and Destruction of Nitrogen Oxides in Coal Combustion. [Reburning].
Author | : |
Publisher | : |
Total Pages | : 29 |
Release | : 1988 |
ISBN-10 | : OCLC:727241771 |
ISBN-13 | : |
Rating | : 4/5 (71 Downloads) |
Book excerpt: The study of stoichiometric constraints under equilibrium conditions provides us with the following information related to reburning as a NO reduction technology: (1) The stoichiometry of air to fuel is the most important stoichiometry of air to fuel is the most important stoichiometric variable for reburning; (2) based on equivalent energy production, the comparative reduction efficiencies of the reburning fuels follow the trend: methane> ethane, ammonia> butane> aromatics, coal> CO; (3) the nitrogen in burning coals causes increases in equilibrium NO; (4) equilibrium TFN is not very sensitive in inlet NO concentration; (5) the heat carried by the flue gas in reburning could push the NO reduction toward equilibrium. If so, reburning has a strong correlation with air staging with air preheat. Further experimental verification is required.