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电石渣在煅烧/氯化反应中的HCl脱除特性研究

谢辛 ,  李英杰

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引用本文: 谢辛, 李英杰. 电石渣在煅烧/氯化反应中的HCl脱除特性研究[J]. 燃料化学学报, 2014, 42(5): 560-566. shu
Citation:  XIE Xin, LI Ying-jie. HCl removal characteristics of carbide slag in a calcination/chlorination reactor[J]. Journal of Fuel Chemistry and Technology, 2014, 42(5): 560-566. shu

电石渣在煅烧/氯化反应中的HCl脱除特性研究

    通讯作者: 李英杰,副教授,博士,主要从事CO2捕集、燃烧和污染物控制方面的研究。E-mail:liyj@sdu.edu.cn。
  • 基金项目:

    国家自然科学基金(51376003) (51376003)

    山东大学自主创新基金(2012TS053)。 (2012TS053)

摘要: 采用钙基废弃物——电石渣煅烧后脱除HCl。在煅烧/氯化反应器上研究脱氯反应温度、HCl体积分数、颗粒粒径和煅烧温度对电石渣脱氯性能的影响。结果表明,电石渣在700 ℃时取得最高氯化转化率;脱氯反应温度高于650 ℃后,电石渣氯化转化率均高于石灰石,电石渣高温脱氯更有优势。电石渣氯化转化率随反应气氛中HCl体积分数提高呈线性增长。随电石渣颗粒粒径增大,氯化转化率缓慢降低。高于900 ℃的煅烧温度不利于电石渣脱除HCl。煅烧后电石渣分布在2~10 nm的孔隙较多,氯化后分布在此孔径范围内的孔容和孔面积分别降低了56.2%和62.2%,2~10 nm孔隙是煅烧后电石渣吸收HCl的主要区域。

English

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  • 收稿日期:  2013-11-25
  • 网络出版日期:  2014-01-12
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