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A role of hydrocarbon reaction for NOx formation and reduction in fuel-rich pulverized coal combustion |
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| Authors: | Masayuki Taniguchi Yuki Kamikawa Teruyuki Okazaki Kenji Yamamoto Hisayuki Orita |
| Affiliation: | Energy and Environmental Systems Laboratory, Hitachi, Ltd. Power Systems Company, 7-2-1 Omika-cho, Hitachi-shi, Ibaraki-ken 319-1292, Japan |
| Abstract: | We have investigated an index for modeling a NOx reaction mechanism of pulverized coal combustion. The reaction mechanism of coal nitrogen was examined by drop-tube furnace experiments under various burning conditions. We proposed the gas phase stoichiometric ratio (SRgas) as a key index to evaluate NOx concentration in fuel-rich flames. The SRgas was defined as: |
| Keywords: | Low-NOx combustion Pulverized coals Reaction model Gas phase stoichiometric ratio Hydrocarbon reaction |
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