WANG Xuebin, WEI Bo, ZHANG Limeng, et al. Effect of temperature and silicon additives on occurrence and transformation characteristics of alkali metal in Zhundong coal[J]. Thermal power generation, 2014, 43(8): 84-88.
WANG Xuebin, WEI Bo, ZHANG Limeng, et al. Effect of temperature and silicon additives on occurrence and transformation characteristics of alkali metal in Zhundong coal[J]. Thermal power generation, 2014, 43(8): 84-88.DOI:
The Zhundong coal mined in Xinjiang area is rich in alkali metal
resulting in slagging problems during coal combustion.Thus
the effect of temperature and SiO2 additives on alkali metal occurrence and transformation characteristics was investigated.The results show that
the Na in Zhundong coal is mainly water-soluble
whereas the K
Ca and Mg are mainly water-insoluble.As the temperature rising
the content of water-soluble sodium in coal ash reduced significantly
but the content of water-insoluble sodium increased.The SiO2 additives can both increase the content of water-insoluble sodium and reduce the content of water-soluble sodium