摘要
ＴＧＡ－ＭＳ是研究煤在燃烧过程中氯及其它气体组分析出特征的有效方法。ＭＳ的结果表明，煤在燃烧时氯基本上是以ＨＣｌ的形式从煤中析出，其析出特征与煤中水分的析出有着密切关系，与ＣＯ２及ＳＯ２的析出也有一定的关系。英国煤和美国煤在燃烧时氯的析出特征基本相似，这也说明两国煤中氯的存在方式是相似的。ＭＳ谱图上的三个ＨＣｌ析出峰则说明至少有三种形式的氯存在于煤中。
The ability of thermogravimetric-mass spectrometer to simultaneously measure weight loss and determine the nature and amounts of gaseous products responsible for the weight loss is a very important technique. The main purpose of this study is to understand the behavior of chlorine during combustion. MS results show that most of chlorine in cola is released from coal as HCl. Despite the average content of chlorine in British coals is much highter than that of American coals, the behavior of chlorine released as HCl from both coals is similar at the whole combustion process. The behavior of CI emission is closely relate to the water evolution as well as correspond to CO_2 and SO_2 emission. Three HCl peaks were observed by MS during combustion. This indicate that the existence of three mechanisms of chlorine binding and release. TGA-MG──Thermogravimetric Analysis Coupled with Mass Spectrometer.
出处
《煤炭转化》
CAS
CSCD
北大核心
1996年第3期34-39,共6页
Coal Conversion
关键词
煤
燃烧
氯
TGAMS,coal combustion.chlorine
