首页> 外文期刊>Journal of Solid Waste Technology and Management >CARBONATION OF FBC ASHES USING SONIC ENERGY
【24h】

CARBONATION OF FBC ASHES USING SONIC ENERGY

机译:利用声能对FBC灰进行碳化

获取原文
获取原文并翻译 | 示例
获取外文期刊封面目录资料

摘要

Fluidized bed combustion (FBC) ashes from firing high-sulfur fuels with limestone addition contain elevated levels of CaO. The ashes display exothermic behavior on wetting, are subject to deleterious expansion in the landfill, and produce high-pH leachate that requires treatment. Currently, the ashes are slaked in a relatively ineffective and potentially hazardous two-stage wetting procedure. Sonic energy, both low- and high-frequency, is a highly effective method of hydrating these ashes. However, even upon hydration, FBC ashes still create expansion in the landfill site, and produce a high-pH leachate. Carbonation would be a better route, but direct attempts at quantitatively carbonating these ashes have to date been unsuccessful. By contrast sonic energy is effective in promoting the carbonation of FBC ashes. When CO_2 is injected into the chamber where the FBC ashes are being sonically hydrated, near-quantitative carbonation in minutes is possible.
机译:燃烧添加石灰石的高硫燃料所产生的流化床燃烧(FBC)灰分含有较高的CaO。骨灰在润湿时表现出放热行为,在垃圾填埋场中会受到有害膨胀,并产生需要处理的高pH渗滤液。目前,骨灰以相对无效且具有潜在危险的两阶段润湿程序进行熟化。低频和高频声波能量都是将这些灰分水化的高效方法。但是,即使水合,FBC灰仍会在垃圾填埋场中膨胀,并产生高pH值的渗滤液。碳化将是更好的途径,但是迄今为止,对这些灰进行定量碳化的直接尝试尚未成功。相反,声能可有效促进FBC骨灰的碳化。当将CO_2注入FBC灰分被超声水化的腔室中时,几分钟内可能发生近乎定量的碳酸化。

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