NOx reburning in oxy-fuel combustion: A comparison between solid and gaseous fuels |
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| Authors: | Fredrik Normann Klas Andersson Filip Johnsson Bo Leckner |
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| Affiliation: | 1. State Environmental Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources, Shanxi Collaborative Innovation Center of High Value-added Utilization of Coal-related Wastes, Shanxi University, Taiyuan, Shanxi 030006, China;2. Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX 77710, USA;1. State Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, No. 15 Beisihuanxi Road, Beijing 100190, China;2. University of Chinese Academy of Sciences, Beijing 100190, China;1. Institute for Computational Engineering and Sciences, The University of Texas at Austin, 1 University Station, Austin, TX 78712, United States;2. NASA Glenn Research Center, Cleveland, OH 44135, United States |
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| Abstract: | ![]()
In the development of oxy-fuel combustion, reburning of nitrogen oxides, recycled with the flue gases, has been investigated for primary NOx control. Reduction of between 50 and 80% of the recycled nitrogen oxides has been measured. The present work evaluates the performance of gaseous and solid fuels as agents for reduction of nitrogen oxides by comparing experimental and modelling work performed at Chalmers University of Technology with different fuels. It is shown that the reduction is similar during propane and lignite firing, but that the lignite has slightly higher reduction efficiency. Differences in combustion temperature and heterogeneous effects are possible explanations. |
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