Relationship of crystal minerals and amorphous as well as residual carbon distribution in fly ash

MEI Dan; CUI Zhigang; MA Suxia

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Relationship of crystal minerals and amorphous as well as residual carbon distribution in fly ash

Thermal Power Generation Issue 12, (2017)

更新时间：2025-09-28

- Relationship of crystal minerals and amorphous as well as residual carbon distribution in fly ash
- 作者机构：
  
  太原理工大学电气与动力工程学院,山西,太原,030024
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ534.9
- Published Online：04 January 2018，
  
  Published：2017
- 稿件说明：
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MEI Dan, CUI Zhigang, MA Suxia. Relationship of crystal minerals and amorphous as well as residual carbon distribution in fly ash[J]. Thermal Power Generation, 2017, (12).
DOI：

MEI Dan, CUI Zhigang, MA Suxia. Relationship of crystal minerals and amorphous as well as residual carbon distribution in fly ash[J]. Thermal Power Generation, 2017, (12). DOI：

摘要

为了研究循环流化床飞灰中残碳的分布规律，以各个粒径下分成不同密度段的飞灰作为研究对象，采用X射线衍射仪（XRD），全谱拟合（Maud）和扫描电子显微镜（SEM）对其结构进行了分析，得到了飞灰中晶体矿物及非晶玻璃相与残碳分布的规律。结果表明：循环流化床飞灰的残碳质量分数分布随密度呈现一定的规律；小密度飞灰由于在循环流化床中停留时间短形成未燃碳而导致含碳量高，大密度飞灰在床内停留时间长而燃烧充分因此含碳量低，1.86×103~2.15×103 kg/m3密度段内的飞灰残碳质量分数达到峰值；晶体矿物在各个密度段飞灰中均匀存在；飞灰中晶体矿物、非晶玻璃相与残碳并非独立分布，残碳与硅铝类非晶玻璃相共存。该结果可为循环流化床中飞灰的利用提供依据。

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