中国电机工程学报2011,Vol.31Issue(2):27-31,5.
O2/CO2气氛下煤焦燃烧过程中碳官能团演化行为研究
Evolution of Carbon Functionality During Coal Char Combustion in O2/CO2 Atmosphere
摘要
Abstract
X-ray photoelectron spectroscopy (XPS) was used to investigate the carbon functional forms present in Datong bituminous coal and its chars. The evolution of carbon functionalities during char combustion in O2/CO2 and O2/Ar atmospheres were also studied. Results indicate that aromatic and aliphatic carbon was the dominant carbon functionalities in coal. Coal pyrolysis resulted in decreases in the levels of aromatic and aliphatic species but increases in the levels of phenolic, carbonyl and carboxyl species. During char combustion in O2/CO2 atmosphere the aromatic and aliphatic species decrease with bum-off while phenolic, carbonyl and carboxyl groups increase. The CO2 gasification has an obvious effect on the evolution of carbon functionalities.关键词
煤焦/燃烧/O2/CO2气氛/碳官能团/X射线光电子能谱分类
能源科技引用本文复制引用
张永春,张军,盛昌栋,刘杨先,赵亮,丁启忠,王坤..O2/CO2气氛下煤焦燃烧过程中碳官能团演化行为研究[J].中国电机工程学报,2011,31(2):27-31,5.基金项目
国家自然科学基金国际合作交流项目(507211460649). (507211460649)