| 褐煤焦吸附烟气中气态汞的实验研究 |
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| 引用本文： | 李乾坤,周劲松,张义,华晓宇,高翔.褐煤焦吸附烟气中气态汞的实验研究[J].能源工程,2012(3):33-36,42. |
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| 作者姓名： | 李乾坤 周劲松 张义 华晓宇 高翔 |
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| 作者单位： | 浙江大学能源清洁利用国家重点实验室,浙江杭州,310027 |
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| 基金项目： | 国家自然科学基金资助项目，新世纪人才支持计划 |
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| 摘 要： | 利用汞渗透管的汞蒸气发生装置和其他烟气成分模拟烟气条件,在小型固定床实验台上开展褐煤焦脱除Hg0的试验研究。结果表明:O2和HCl单独存在时均能够有效地促进单质汞在煤焦上的吸附,使煤焦的穿透率减少,吸附效率提高;SO2的存在会造成竞争吸附,抑制煤焦对Hg0的吸附;NO对煤焦吸附Hg0影响不大。随着入口汞浓度的增加,煤焦的穿透率增加;随着吸附反应温度的升高,煤焦的穿透增加,吸附效率降低。
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| 关 键 词： | 煤焦 烟气 汞 穿透率 |
An experimental study on coal-char sorbents for gas-phase mercury removal from flue gas |
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| Affiliation: | LI Qian-kun,ZHOU Jin-song,ZHANG Yi,et al(State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,China) |
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| Abstract: | The mechanisms of elemental mercury capture by coal-char was studied by using a bench-scale fixed-bed apparatus.The result showed that,O2 and HCl all could promote Hg0 adsorption on coal-char,reduce penetration ratio and increase removal efficiency when they were existed alone in the flue gas;SO2 would cause competition adsorption and inhibit Hg0 adsorption on coal-char;NO had no effect on Hg0adsorption in coal-char.The penetration ratio of coal-char increased as the inlet mercury concentration increased;as the adsorption temperature increased,the performance of coal-chars deteriorated. |
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| Keywords: | char flue gas mercury penetration ratio |
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