| 模拟燃煤烟气中汞在活性炭上吸附的动力学研究 |
| |
| 引用本文： | 高洪亮,周劲松,骆仲泱.模拟燃煤烟气中汞在活性炭上吸附的动力学研究[J].中原工学院学报,2005,16(6):1-5,15. |
| |
| 作者姓名： | 高洪亮 周劲松 骆仲泱 |
| |
| 作者单位： | 1. 中原工学院,河南,郑州,450007
2. 浙江大学,能源清洁利用与环境工程国家重点实验室,浙江,杭州,310027 |
| |
| 基金项目： | 国家科技攻关项目，科技部科研项目，中国科学院资助项目 |
| |
| 摘 要： | 本文在小型燃煤烟气汞脱除实验台上,用模拟烟气研究了汞在活性炭上的吸附平衡过程和动力学过程,结果发现燃煤烟气中汞在活性炭上等温吸附的平衡过程可以用Langmuir吸附等温式、线性方程或Freundlich等温式来描述,三者均有较好的拟合效果;燃煤烟气中汞在活性炭上的吸附符合一级反应动力学方程,吸附速率常数与吸附温度(T)成负相关,吸附反应的活化能Ea为0.011 744J/mol;吸附过程为物理吸附.
|
| 关 键 词： | 燃煤烟气 活性炭 汞 吸附 动力学 |
| 文章编号： | 1671-6906（2005）06-0001-06 |
| 收稿时间： | 2005-11-05 |
| 修稿时间： | 2005-11-05 |
Kinetic Study of Mercury Adsorption onto Activated Carbon in Coal-fired Flue Gases |
| |
| GAO Hong-liang,ZHOU Jin-song,LUO Zhong-yang.Kinetic Study of Mercury Adsorption onto Activated Carbon in Coal-fired Flue Gases[J].Journal of Zhongyuan Institute of Technology,2005,16(6):1-5,15. |
| |
| Authors: | GAO Hong-liang ZHOU Jin-song LUO Zhong-yang |
| |
| Abstract: | A benchscale experimental system was conducted to study kinetic properties of mercury adsorption onto activated carbon in coalfired flue gases.The test method used here for mercury concentration was coldvapor atomic fluorescence spectroscopy(CVAAS).Mercury equilibrium adsorption capacity onto activated carbon by zinc chloride process in different coalfired flue gas systems were measured in typical constituent flue gas systems.The conclusions are as follows:Adsorption isotherms of mercury adsorption onto activated carbon could be described by linear,Langmuir or Freundlich equation,the three equations could all well reflect the adsorption behavior.The adsorption data fit the first order reaction,the adsorption rate constant was shown to be negatively correlated with the temperature(T).The activation energy was 0.011744J/mol;The adsorption behavior was physical reaction. |
| |
| Keywords: | coal-fired flue gas activated carbon mercury adsorption kinetic |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
