The design of ignition systems and a study of the development of the high temperature zone in well-type underground coal gasification
作者: Jianhua WangZiyin ZuZuotang WangGuosheng Xu
作者单位: 1School of Mines, Guizhou University of Engineering Science, Bijie 551700, China
2Guizhou Panjiang Coal and Electricity Group Co., LTD, Guiyang 550000, China
3School of Mines, China University of Mining and Technology, Xuzhou 221116, China
4State Key Laboratory of Coal Resources and Safe Mining, Xuzhou 221008, China
刊名: Fuel, 2020, Vol.269
来源数据库: Elsevier Journal
DOI: 10.1016/j.fuel.2020.117281
关键词: Underground coal gasificationIgnition systemIgnition phaseTemperature field expansion
英文摘要: Abstract(#br)To investigate temperature field expansion behavior during the ignition stage, the variation of temperature fields of 12 sites versus time were studied using thermocouples during the ignition process. The results showed that the temperatures measured, and combustion processes, were not uniform. At the position where the igniter had started successfully, igniter 10 showed the smoothest flow in its exhaust holes, followed by igniters 4 and 1, successively. At the position of igniter 10, the ignition materials burned well and the temperature curve was smooth, but the highest combustion temperature of oil-containing split wood layer and coke layer was only 393 °C, the highest combustion temperature of block coal layer and solid coal wall was only 591 °C and 936 °C respectively....
全文获取路径: Elsevier  (合作)
影响因子:3.357 (2012)

  • gasification 气化
  • development 开发
  • underground 地下的
  • temperature 温度
  • study 学习
  • system 
  • ignition 点火
  • well 
  • Temperature 温度
  • expansion 膨胀