NO emissions under pulverized char combustion in O2/CO2/H2O preheated by a circulating fluidized bed

•Newly-preheated system of pulverized char oxy-fuel combustion for low NOx emissions.•Steam hinders nitrogen reduction process during preheating.•NO emissionss gradually increase as steam concentration increases.•Combustion efficiencies are above 99.0%. The char combustion characteristics and NO emi...

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Veröffentlicht in:	Fuel (Guildford) 2019-09, Vol.252, p.512-521
Hauptverfasser:	Zhu, Shujun, Zhu, Jianguo, Lyu, Qinggang, Pan, Fei, Zhang, Yi, Liu, Wen
Format:	Artikel
Sprache:	eng
Schlagworte:	Carbon dioxide Chemical reactions Circulating fluidized bed Combustion Combustion chambers Combustion temperature Emissions Flue gas Fluidized beds Gasification Heating Nitrogen NO emissions O2/CO2/H2O Organic chemistry Preheated Pulverized char Reduction Shift reaction Steam Temperature effects
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