中国电机工程学报2011，Vol.31Issue(29)：61-66,6.
渗铈活性焦汞脱附性能实验研究
Experimental Investigation of Mercury Desorption on CeO2 Impregnated Activated Coke
摘要
Abstract
To improve the recycling mercury removal efficiency of the CeO2 impregnated activated coke （AC）, CeO2/AC, the characteristic of mercury desorption was investigated during regeneration process in N2 atmosphere. Most mercury released at about 270℃ and the rest released at about 530℃, in the form of Hg^0. When the regeneration temperature reached 300℃, the mercury regeneration ratio achieved 90%. The characteristic of mercury desorption on CeO2/AC was relevant to the regeneration temperature, but was independent of heating rate. Physical structure data indicated that the mercury adsorption process was a combination of physisorption and chemisorption. Method Boehm and X-ray analysis were used for the chemical properties analysis of CeO2/AC. The results show that the mercury removal efficiency decreas with increasing regeneration times and temperature due to CeO2 loss during the carbon ablation and oxidation as well as desorption of surface acid functional group during the regeneration. Therefore, a suitable regeneration temperature is necessary for the appropriate recycling mercury removal efficiency of CeO2/AC.关键词
烟气/活性焦/再生/汞脱附/Ce02Key words
flue gas/activated coke/regeneration/mercury desorption/CeO2分类
资源环境引用本文复制引用
华晓宇,周劲松,高翔,李乾坤,骆仲泱,岑可法..渗铈活性焦汞脱附性能实验研究[J].中国电机工程学报,2011,31(29):61-66,6.基金项目
新世纪优秀人才支持计划项目（NCET-08-0490) （）
环保公益性行业科研专项经费项目（200909024). （）
