HU Xin, Zhou Zhijun, Wang Zhihua, et al. Thermogravimetry based analysis on the influence of CO2 on oxy-fuel combustion characteristics of lignite[J]. Thermal power generation, 2013, 42(3): 15-24.
HU Xin, Zhou Zhijun, Wang Zhihua, et al. Thermogravimetry based analysis on the influence of CO2 on oxy-fuel combustion characteristics of lignite[J]. Thermal power generation, 2013, 42(3): 15-24.DOI:
The combustion characteristics of ZD lignite and YM lignite in O2/N2 and O2/CO2 atmospheres with O2concentration of 21% was investigated by thermogravimetry.Such combustion characteristic parameters as ignition temperature
burnout temperature
the maximum reaction rate and the maximum reaction rate temperature were obtained
and the comprehensive combustion characteristic index for each reaction was calculated.Moreover
by Coats-Redfern method
the reaction kinetic parameters were obtained.The experimental results showed that the lignite combustion was inhibited in O2/CO2 atmosphere
the reaction rate decreased and the reaction time lengthened.In addition
the CO2 had more obvious inhibition effect on lignite with lower coalification degree.The calculation results were consistent with that of the experiment.