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1835314 
Journal Article 
THE RESEARCH OF CFB BOILER OPERATION FOR OXYGEN-ENHANCED DRIED LIGNITE COMBUSTION 
Muskala, W; Krzywanski, J; Czakiert, T; Nowak, W 
2011 
1 
172-176 
WOS:000287626400027 
The paper presents the research of CFB boiler operation for oxygen-enhanced dried lignite combustion. The model covers heat transfer between fluidized bed, membrane-walls and superheaters. It describes CO, SO(2) NO(x) and N(2)O emissions during solid fuel combustion in CFB boilers. The results show that combustion in an oxygen-enriched atmosphere causes an increase in the adiabatic temperature. The variation in the heat duty is the result of the changes in the temperature distribution in the combustion chamber. The combustion in oxygen-enhanced conditions generally leads to reducing the emissions of CO and NO(x) and N(2)O due to reduced volume of flue gas. The maximum oxygen content for oxygen-enhanced combustion in O(2)/N(2) conditions should not exceed 40%, however, the maximum drying the maximum extent of fuel drying should not be higher than 50% of the initial moisture content in an examined lignite. 
(Circulating Fluidized Bed) CFB boilers; combustion chamber; oxygen-enhanced combustion