...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >Study of coal and coke Ignition in fluidized beds
【24h】

Study of coal and coke Ignition in fluidized beds

机译：流化床中煤焦燃烧的研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Ignition tests were conducted with delayed and fluid petroleum cokes, a high volatile bituminous coal and their blends in bench- and pilot-scale fluidized bed combustors. In the bench-scale FBC tests, a visual inspection ignition criterion was developed based on the 'CO-CO_2' profiles obtained as a function of time and bed temperature. In the pilot-scale unit, the rapid increase in SO_2 levels was used as the indicator of fuel ignition. In addition to the fluidized bed ignition tests, thermogravimetric analysis (TGA) measurements were made on all fuels and their chars. The results showed that, while the fluid coke (which has the lowest volatile content) was the most difficult to ignite, ignition was not a simple function of volatile content. Further, different test methods and ignition criteria demonstrated significantly different ignition temperatures, with the largest variation arising between bench- and pilot-scale equipment. Finally, tests on mixtures of petroleum coke and coal showed that there was no interaction between these two fuels, and that the coke ignited only when it achieved its own ignition temperature.
机译：在台式和中试规模的流化床燃烧器中，用延迟和流动石油焦，高挥发性烟煤及其混合物进行了点火测试。在实验室规模的FBC测试中，基于获得的“ CO-CO_2”曲线作为时间和床温的函数，开发了目视检查点火标准。在中试规模单位中，SO_2含量的快速增加被用作燃料点火的指标。除流化床着火测试外，还对所有燃料及其炭进行了热重分析（TGA）测量。结果表明，虽然流动性焦炭（挥发物含量最低）最难点燃，但点燃并不是挥发物含量的简单函数。此外，不同的测试方法和点火标准显示出明显不同的点火温度，台式和中试规模的设备之间变化最大。最后，对石油焦和煤的混合物进行的测试表明，这两种燃料之间没有相互作用，并且仅当焦炭达到其自身的着火温度时才点燃。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号