• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Clearwater clean coal conference;International technical conference on clean coal fuel systems >Sulfur capture by fly ash in air and oxy-fuel pulverised fuel combustion
【24h】

Sulfur capture by fly ash in air and oxy-fuel pulverised fuel combustion

机译：空气中的飞灰和含氧燃料粉状燃料燃烧中的硫捕获

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Ash produced during oxy-fuel combustion is expected to differ to ash produced during air combustion due to the higher CO_2 and SO_2 atmosphere in which it is generated. For a quantitative understanding of the sulfation behaviour of fly ash in oxy-fuel combustion with flue gas recycling, fly ash from three commercial Australian sub-bituminous coals were tested and decomposed under an inert atmosphere. Thermal evolved gas analysis was completed for ash produced in both air and oxy-fuel with full flue gas recycling combustion environments. Pure salts were also tested under the same conditions to allow identification of the species in the ash which capture sulphur, along with thermodynamic modelling using Fact-sage 6.3. The sulfur evolved during the decomposition of the air and oxy-fuel fly ash was compared with the total sulphur in the ash, determined by the Eschka method in order to close the sulfur mass balance. Both total sulfur captured by the ash and the sulfur evolved during decomposition were higher for oxy-fuel fly ash than their air counterparts. Correlations of capture with ash chemistry are presented.
机译：由于在其中产生较高的CO_2和SO_2气氛，因此在含氧燃料燃烧过程中产生的灰分与在空气燃烧过程中产生的灰分预计会有所不同。为了定量了解粉煤灰在含氧燃料燃烧和烟气再循环中的硫酸化行为，对来自澳大利亚的三种商业性次烟煤的粉煤灰进行了测试，并在惰性气氛下进行了分解。在完全烟气再循环燃烧环境下，完成了空气和含氧燃料中产生的灰分的热逸出气体分析。还使用相同条件对纯盐进行了测试，以鉴定灰分中捕获硫的物质，并使用事实数据6.3进行热力学建模。将空气和含氧燃料的飞灰分解过程中产生的硫与通过Eschka方法确定的灰中的总硫进行了比较，以关闭硫的质量平衡。粉煤灰捕获的总​​硫和分解过程中放出的硫都比空气中的含氧燃料飞灰高。提出了捕获与灰分化学的相关性。

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