COMBUSTION CHARACTERISTICS OF PULVERIZED COAL UNDER HIGH OXYGEN CONCENTRATIONS
Oxygen-enhanced and oxygen-fired pulverized coal combustion is actively being investigated. In the work reported here, the combustion characteristic and mechanism of three different rank pulverized coals (THSH anthracite, DL lignite, and SM bituminous) have been measured in 21％-100％ O2 atmospheres using a fixed-bed reactor. Results revealed that the high oxygen concentration did not affect the ignition mechanism for all samples; it only makes the combustion curves shift to lower temperature levels and shortened the combustion time of the char. The results also indicated that as the oxygen concentration increases, the performance of combustion of pulverized coals could be improved, however, the O2 affects much more for bituminous than lignite and anthracite, and obviously, the SM bituminous is the most suitable pulverized coal for oxygen enrichment ignition system.
High ozygen concentration pulverized coal ignition mechanism reactivity
Yuesheng FAN Zheng ZHOU Zidong CAO Xiaoke JIANG Yingchao XU
School of Energy and Power Engineering,Xian Jiaotong University, Xian,710049,Peoples Republic of Jimei University, Xiamen, 361021, Peoples Republic of China
国际会议
第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)
武汉
英文
274-279
2007-12-01（万方平台首次上网日期，不代表论文的发表时间）