超声波辅助浸渍法制备Fe2O3/γ-Al2O3 吸附剂脱除气相As2O3的实验研究

张月; 李文瀚; 王春波; 刘慧敏; 张永生; 潘伟平

超声波辅助浸渍法制备Fe₂O₃/γ-Al₂O₃ 吸附剂脱除气相As₂O₃的实验研究

1.
华北电力大学能源动力与机械工程学院能源环境科学与工程研究所, 北京 102206;
2.
Institute for Combustion Science and Environmental Technology, Western Kentucky University, Bowling Green Kentucky 42101, USA

基金项目: 国家高技术研究发展计划(863计划, 2013AA065501); 中央高校基本科研业务费专项资金(2014XS81)。

详细信息

通讯作者:
王春波(1973-),男,博士生导师,研究方向为洁净煤燃烧及污染物控制,E-mail:hdwchb@126.com。

中图分类号: X773
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出版历程
- 收稿日期: 2015-03-30
- 修回日期: 2015-06-11
- 刊出日期: 2015-09-30

Experimental study on As₂O₃ capture from gas phase using ultrasound-assisted prepared Fe₂O₃/γ-Al₂O₃ sorbent

1.
Institute for Energy Environment Science and Engineering, Department of Energy Power & Mechanical Engineering, North China Electric Power University, Beijing 102206, China;
2.
Institute for Combustion Science and Environmental Technology, Western Kentucky University, Bowling Green, Kentucky 42101, USA

摘要

摘要: 使用超声波辅助浸渍法制备Fe₂O₃/γ-Al₂O₃吸附材料,在固定床反应器上研究了前驱液浸渍浓度、载体粒径、吸附温度、吸附气氛等因素对脱除气相As₂O₃的影响。结果表明,前驱液浸渍浓度、载体粒径等会对吸附剂表面结构产生影响从而影响其砷吸附性能;吸附温度升高增强了其化学吸附能力,然而,温度过高反而造成吸附性能的下降;吸附气氛中的SO₂促进了Fe₂O₃/γ-Al₂O₃对气相砷的吸附,气氛中的NO对气相砷的影响不大。
- 气相砷 /
- 吸附剂 /
- 吸附温度 /
- SO₂/NO
Abstract: Ultrasound-assisted wet impregnation method was used to prepare the Fe₂O₃/γ-Al₂O₃ sorbent. The effects of the precursor solution content, carrier size, adsorption temperature and atmosphere on the arsenic capture efficiency in a fixed-bed reactor were investigated. The results show that the precursor solution concentration and the size of carrier can affect the arsenic adsorption efficiency. The increasing of adsorption temperature enhances the chemical adsorption ability. However, the efficiency will be decreased if the temperature is over 600 ℃. The addition of SO₂ in the atmosphere will enhance the arsenic adsorption ability of Fe₂O₃/γ-Al₂O₃. The influence of NO on the capture efficiency is not significant during this study.
- gas-phase As₂O₃ /
- adsorbent /
- adsorption temperature /
- SO₂/NO

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