%0 Journal Article
%T 煤对的化学反应性与原煤性质的关系
%A 赵奇
%J 洁净煤技术
%D 2012
%X 为了提高煤对CO2的化学反应性,选取4种不同变质程度的煤样进行分析。根据相关国标的规定,对煤样进行了工业分析,同时测定了其粘结指数、胶质层厚度及煤岩组成。依据GB/T 220—2001《煤对二氧化碳化学反应性的测定方法》,测定了4种煤样在800～1100℃时对CO2的反应性。结果表明:在800～950℃时,煤对CO2的化学反应性增加缓慢,当温度高于950℃时,反应性急剧增加。随着变质程度的升高,煤对CO2的化学反应性表现出先降低后升高的趋势,且在某一点处会取得极小值。胶质层厚度及粘结指数均与反应活性表现出负相关的关系。活惰比与反应性呈抛物线关系,当活惰比约为1.9时,煤对CO2的化学反应性较低。 Four kinds of coal samples with different metamorphic grades were tested in order to improve carboxy reactivity of coal.Based on the relative national standards,made proximate analysis of coal,meanwhile,measured caking index,plastometer indices and lithotype of coal.The carboxy reactivity of four kinds of raw coal were analyzed between 800 ℃ and 1100 ℃ according to GB/T 220-2001 determination of carboxy reactivity of coal.The results show that the reactivity increases slowly within the first 150 ℃,while the temperature is above 950 ℃,it begins to sharply increase.The ratio of active components to inert components has the parabola relation with the carboxy reactivity of coal,while the ratio is about 1.9,the reactivity gets minimum
%K 反应活性
%K 煤岩组成
%K 变质程度
%K 粘结性 carboxy reactivity of coal
%K lithotype
%K metamorphic grade
%K caking property
%U http://www.jjmjs.com.cn/WKD/WebPublication/paperDigest.aspx?paperID=7712b564-4ddb-485e-94c1-6f6910288f7b