燃料化学学报2017，Vol.45Issue(10)：1200-1208,9.
贫煤O2/CO2气氛下燃烧时内在矿物质对SO2和NOx排放特性的影响
Effect of mineral matter on emissions of SO2 and NOx during combustion of lean coal in O2/CO2 atmosphere
摘要
Abstract
Combustion experiments of Changzhi coal at 550-1000℃ were conducted in a tube furnace reactor in air and O2/CO2,respectively.The XRF,XRD etc.were employed to study the characteristics of raw coal and its demineralized coal.Effects of mineral matter in coal on combustion characteristics and release of SO2 and NOx during combustion were investigated using TG-DTG and Antafis-IGS.The results show that ignition and burnout temperature of the demineralized coal are lower than those of raw coal.In O2/CO2 the ignition and burnout temperature of raw coal and the demineralized coal are all higher.This shows that when oxygen concentration is 20％,the coals are easier to ignite and burnout in air.Besides that,SO2 emission of the demineralized coal is higher than that of raw coal;while NOx emission is opposite.For raw coal,SO2 emission is higher when combusted in O2/CO2;while for the demineralized coal,it is opposite.During combustion in O2/CO2,NOx emission is always lower whether for the raw or the demineralized coal.关键词
贫煤/富氧燃烧/硫/氮/排放特性Key words
lean coal/oxy-fuel combustion/sulfur/nitrogen/emission characteristics分类
化学化工引用本文复制引用
李文秀,王宝凤,任杰,张锴,杨凤玲,程芳琴..贫煤O2/CO2气氛下燃烧时内在矿物质对SO2和NOx排放特性的影响[J].燃料化学学报,2017,45(10):1200-1208,9.基金项目
The project was supported by the National Natural Science Foundation of China-Shanxi coal based low carbon joint fund (U1610254),Shanxi Provincial Science and Technology Major Projects (MD2015-01) and Key Research and Development program of Shanxi province(International Cooperation)(201603D421041).NSFC-山西省联合基金重点项目(U1610254),山西省科技重大专项项目(MD2015-01)和山西省重点研发计划(国际合作)(201603D421041)项目资助 （U1610254）
