燃料化学学报2018，Vol.46Issue(4)：385-390,6.
惰性气氛下准东煤Na/Ca释放特性的研究
Release characteristics of Na/Ca in Zhundong coal under inert atmosphere
摘要
Abstract
The release and transformation characteristics of Na/Ca in Zhundong coal under inert atmosphere were studied by using tubular heating furnace based on occurrence modes of Na/Ca containing species. It is found that water soluble Nawfirstly transfers to insoluble Narewhen the heating temperature is lower than 600℃. As the temperature increases, insoluble Naretransfers back to water soluble Naw. Large amount of Na releases when the temperature is higher than 800 ℃. Acid soluble Caacfirstly decomposes to CaO when the heating temperature is lower than 700℃,and CaO reacts with other minerals to form insoluble Care. As the temperature increases,insoluble Caretransfers to acid soluble Caacand water soluble Caw. At the same temperature, the release rate of Ca is lower than that of Na. Moreover, a little amount of acid soluble organic Ca will release when the volatile matter releases.关键词
准东煤/Na/Ca/释放特性/形态转变Key words
Zhundong coal/Na/Ca/release characteristics/transformation分类
能源科技引用本文复制引用
杨燕梅,张扬,张海,吴玉新,刘青,吕俊复..惰性气氛下准东煤Na/Ca释放特性的研究[J].燃料化学学报,2018,46(4):385-390,6.基金项目
The project was supported by National Science and Technology Support Project of China(2015BAA04B01,2015BAA04B02).国家科技支撑计划(2015BAA04B01,2015BAA04B02)资助 （2015BAA04B01,2015BAA04B02）
