摘要
用XRD和TG等方法对无烟粉煤制炭化型煤的微观结构进行研究.结果表明:与石墨相比,炭化型煤的d(002)较大,但Lc和La较小.炭化型煤中的微晶无规则地连接,具有乱层结构;无烟煤成型块炭化时没有流体状胶质体形成,无烟煤颗粒通过黏结剂与细粉形成的胶料把它们黏结在一起,黏结剂与无烟煤颗粒表面有明显的作用界面;炭化型煤微晶结构与气孔结构共同决定炭化型煤的反应性.
The microcrystal structure of carbonated briquette made trom Changzhi anthracite powder was studied by use of X-ary diffraction and TG. The results have shown that the microcrystal parameters d（200） is larger, but Lc and La are smaller than that of graphite. There were micro-crystals in the carbonizated briquette made from Changzhi anthracite powder. The arrangement of the micro-crystals in the carbonizated briquette was quite irregular, so that the structure was called ＂irregular structure＂. When a briquette was carbonated, there was no fluid colloidalmatter formed in the inside of the briquette. Through binding material and glue stock, the anthracite powders were bonded together. Because of the affect of anthracite powder and binding material there was the apparent surface between them. The reactivity of the carbonizated briquette was decided by both the microcrystal arrangement and pore structure in the briquette.
出处
《煤炭转化》
CAS
CSCD
北大核心
2010年第3期19-22,共4页
Coal Conversion
基金
国家重点基础研究规划(973)项目(2005CB221202)
山西省归国留学人员基金资助项目
关键词
无烟煤
炭化
型煤
微晶结构
XRD
anthracite powder, carbonization, briquettes, microcrystal structure, X-ray diffraction
