CHEN Hongwei, YAN Jingbo, ZHANG Zhicai, et al. Effect of CaO on isothermal gasification characteristics of Huaidong coal char in CO2 atmosphere[J]. Thermal power generation, 2014, 43(8): 60-63.
CHEN Hongwei, YAN Jingbo, ZHANG Zhicai, et al. Effect of CaO on isothermal gasification characteristics of Huaidong coal char in CO2 atmosphere[J]. Thermal power generation, 2014, 43(8): 60-63.DOI:
Isothermal gasification of Huaidong coal char in CO2 atmosphere catalyzed by CaO was carried out on a thermogravimetric analyzer.The gasification performance of char with CaO catalytic action was investigated.The results show that
the catalytic effect of CaO was related to its adding way.It was unconspicuous when the CaO was mechanically mixed
while the coal char's gasification reactivity sharply increased when the CaO was added by immersion method.With an increase in the CaO addition
the reactivity of coal char rose first and then deceased
the loading saturation level of CaO was 5%.The catalytic effect of CaO was weakened at high temperatures.The reactivity of coal char with CaO added before the char preparation was higher than that of the char with CaO added after the char formation.