...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >Influence of Na and Ca on the emission of NOx during coal combustion
【24h】

Influence of Na and Ca on the emission of NOx during coal combustion

机译：Na和Ca对煤燃烧过程中NOx排放的影响

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

Temperature programmed combustion of a Chinese brown coal before and after demineralization was carried out in a tubular quartz fixed bed reactor. The evolution of NOx during coal combustion has been investigated with an aim of figuring out the influence of indigenous mineral matter in coal as well as the loaded alkali and alkaline earth metals (Na, Ca). The results show that the mineral matter in the coal suppresses the conversion of fuel-N to NOx, and at the same time, significantly promotes the coal combustion process. The added Na exhibits high catalytic activity for the coal combustion and NOx reduction. In the case of Ca, its effect on the combustion of coal is ignorable but the emission level of NOx increases distinctively due to the presence of Ca. The formation of N-Ca intermediates that preferentially direct the conversion of fuel-N towards NOx during coal combustion is proposed and discussed.
机译：在管式石英固定床反应器中进行脱盐前后的褐煤的程序升温燃烧。为了弄清楚煤炭中原生矿物质以及负载的碱金属和碱土金属（Na，Ca）的影响，已经研究了煤炭燃烧过程中NOx的释放。结果表明，煤中的矿物质抑制了燃料中N向NOx的转化，同时显着促进了煤的燃烧过程。添加的Na对煤燃烧和NOx还原具有高催化活性。在Ca的情况下，其对煤燃烧的影响是可忽略的，但由于Ca的存在，NOx的排放水平显着增加。提出并讨论了在煤燃烧过程中优先引导燃料N转化为NOx的N-Ca中间体的形成。

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