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金属氧化物吸附剂干法脱除气相As2O3实验研究

张月,  王春波,  刘慧敏,  孙喆,  李文瀚,  张永生,  潘伟平

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文章导航 > 燃料化学学报（中英文）  > 2015 >  43(04): 476-482
张月, 王春波, 刘慧敏, 孙喆, 李文瀚, 张永生, 潘伟平. 金属氧化物吸附剂干法脱除气相As2O3实验研究[J]. 燃料化学学报（中英文）, 2015, 43(04): 476-482.
引用本文: 张月, 王春波, 刘慧敏, 孙喆, 李文瀚, 张永生, 潘伟平. 金属氧化物吸附剂干法脱除气相As2O3实验研究[J]. 燃料化学学报（中英文）, 2015, 43(04): 476-482.
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ZHANG Yue, WANG Chun-bo, LIU Hui-min, SUN Zhe, LI Wen-han, ZHANG Yong-sheng, PAN Wei-ping. Removal of gas-phase As2O3 in dry process by metal oxide adsorbents[J]. Journal of Fuel Chemistry and Technology, 2015, 43(04): 476-482.
Citation: ZHANG Yue, WANG Chun-bo, LIU Hui-min, SUN Zhe, LI Wen-han, ZHANG Yong-sheng, PAN Wei-ping. Removal of gas-phase As2O3 in dry process by metal oxide adsorbents[J]. Journal of Fuel Chemistry and Technology, 2015, 43(04): 476-482.
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金属氧化物吸附剂干法脱除气相As2O3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,2013AA065404);中央高校基本科研业务费专项资金(2014XS81)。
详细信息
    通讯作者:

    张月(1990-), 女, 博士研究生, 研究方向为高效低污染煤燃烧理论与污染物控制, E-mail:ncepuzhangyue@foxmail.com。

  • 中图分类号: X773

Removal of gas-phase As2O3 in dry process by metal oxide adsorbents

  • 1.

    Institute for Energy Environment Science and Engineering, Department of Energy Power & Mechanical Engineering, North China Electric Power University, Beijing 102206, China;

  • 2.

    Institutefor Combustion Scienceand Environmental Technology, Western Kentucky University, Bowling Green, Kentucky 42101, USA

    摘要
  • 摘要: 利用自制As2O3连续发生装置,在固定床反应器上研究了金属氧化物CaO、Fe2O3、Al2O3对煤燃烧高温烟气中气相砷的吸附特性。600~900 ℃温度的吸附实验结果表明,金属氧化物CaO、Fe2O3吸附剂对气相As2O3的吸附以化学吸附为主,随着吸附温度的升高,吸附量与吸附效率逐渐减小;3种金属氧化物的气相固砷能力依次为Fe2O3 >CaO >Al2O3;研究了气相砷浓度对吸附剂固砷量的影响特性,当气相砷体积浓度在4.5×10-6~13.5×10-6变化时,不会有吸附饱和的现象发生,当吸附剂种类一定时,吸附效率仅与吸附温度有关,对于不同气相砷浓度保持相同的吸附温度可以获得相同的吸附效率。
    Abstract: The adsorption of gas-phase As2O3 by metal oxides like CaO, Fe2O3 and Al2O3 was investigated in a fixed bed reactor with an arsenic continuous generation facility. The results indicated that the adsorption of As2O3 on metal oxides is dominated by chemical adsorption at a temperature between 600 and 900 ℃; the adsorption quantity and efficiency are decreased with the increase of temperature. The arsenic adsorption ability of three metal oxide follows the order of Fe2O3 > CaO > Al2O3. The saturation adsorption phenomenon will not occur under the current conditions with the concentration of arsenic in the gas phase in the range between 4.5×10-6 and 13.5×10-6 (volume ratio); the adsorption efficiency for each adsorbent is only affected by the adsorption temperature and the same adsorption efficiency can be achieved with different arsenic concentrations.
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  • 收稿日期:  2014-11-05
  • 刊出日期:  2015-04-30

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