燃料化学学报2017，Vol.45Issue(5)：523-528,6.
CO2气氛对煤热解过程中硫逸出的影响
Effect of CO2 atmosphere on sulfur release during coal pyrolysis
摘要
Abstract
Yima (YM) coal and Pingshuo (PS) coal as well as their deashed coals and depyrited coals were used to investigate the effects of CO2 and Ar on the sulfur release behavior during coal pyrolysis by pyrolysis connected with mass spectrometer (Py-MS) and pyrolysis connected with gas chromatogram (Py-GC).It is found that CO2 atmosphere can promote the release of H2S,COS and SO2,especially the remarkable releasing of COS.In addition,CO2 atmosphere can decrease the maximum release peak temperature of H2S,COS and SO2 for raw coals,while there is no obvious effect for their deashed coals.At the same time,CO2 is beneficial to the decomposition of organic sulfur at higher temperature.That the COS formation is related to CO at higher temperatures and has nothing to do with CO at lower temperatures is validated.关键词
CO2气氛/煤热解/硫释放/热解-质谱(Py-MS)/热解-气相色谱(Py-GC)Key words
CO2 atmosphere/coal pyrolysis/sulfur release/Py-MS/Py-GC分类
化学化工引用本文复制引用
郭慧卿,付琦,王鑫龙,刘粉荣,胡瑞生,张浩..CO2气氛对煤热解过程中硫逸出的影响[J].燃料化学学报,2017,45(5):523-528,6.基金项目
The project was supported by the National Natural Science Foundation of China(21466025).国家自然科学基金(21466025)资助 （21466025）
