Title :
Experimental study on the characteristics of coal combustion in oxygen-enriched environments
Author :
Tian, Luning ; Chen, Hanping ; Yang, Haiping ; Wang, Xianhua ; Zhang, Shihong
Author_Institution :
State Key Lab. of Coal Combustion, Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
Oxygen-enriched combustion in circulating fluidized bed (CFB) is a both technological and economical feasibly technology for carbon capture and storage. Therefore, in order to understand the coal combustion characteristics of oxygen-enriched combustion technology in CFB. The characteristics of coal combustion were analyzed by using the thermogravimetric analyzer (TGA) under different reaction conditions of variant reactive atmosphere, heating rate and particle size. Results showed that the higher O2 concentration and heating rate can improve the characteristics of coal combustion in oxygen-enriched environments, while the opposite tendency is shown with the increasing of the particle size. The coal combustion kinetics was changed from a first-order reaction to second-order reaction when the the O2/CO2 increased to 40/60.
Keywords :
air pollution control; carbon compounds; climate mitigation; coal; combustion; fluidised beds; oxygen; thermal analysis; CFB; CO2; O2; TGA; carbon capture; carbon storage; circulating fluidized bed; coal combustion kinetics; oxygen-enriched combustion environment; thermogravimetric analyzer; variant reactive atmosphere; Atmosphere; Coal; Heat engines; Heating; Ignition; coal combustion; kinetics; oxygen-enriched environment; thermogravimetric analyzer;
Conference_Titel :
Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-749-8
DOI :
10.1109/ICMREE.2011.5930648
