Experimental Study on Removal of Gas-phase As2O3 by Mn Modified Fe2O3/γ-Al2O3

被引：0

作者：

Liu X. ^{[1
]}

Zhang Y. ^{[1
]}

Xing J. ^{[1
]}

Guo Y. ^{[1
]}

Xu T. ^{[1
]}

Wang C. ^{[1
]}

机构：

[1] Department of Energy Power & Mechanical Engineering, North China Electric Power University, Baoding

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2021年 / 41卷 / 15期

基金：

中国国家自然科学基金;

关键词：

Adsorbent; Adsorption; Fe[!sub]2[!/sub]O[!sub]3[!/sub]/γ-Al[!sub]2[!/sub]O[!sub]3[!/sub; Gas-phase arsenic; Mn modification; Oxidation;

D O I：

10.13334/j.0258-8013.pcsee.201431

中图分类号：

学科分类号：

摘要：

Using activated alumina as a carrier, a series of Fe-MnOx/γ-Al2O3 adsorbents were prepared by using the ultrasonic- assisted impregnation method. The arsenic adsorption performance of this series of adsorbents was investigated, and the effects of reaction temperature, O2 and SO2 on the arsenic adsorption performance of Mn modified Fe2O3/γ-Al2O3 were studied. The results show that the Mn impregnation concentration can affect the specific surface area, pore size and oxidation performance of the adsorbent, thereby affecting the adsorption performance of arsenic. The introduction of an appropriate amount of Mn is beneficial to the adsorption of gas-phase arsenic; the adsorption performance is best when the Mn-Fe molar ratio is 0.5. The increase in the adsorption temperature enhances the arsenic adsorption performance of the adsorbent. When the temperature is too high, the surface structure of the adsorbent deteriorates and the adsorption performance decreases; SO2 may influence the surface properties of the adsorbent and promote the adsorption of As2O3, and O2 can supplement the lattice oxygen consumed to promote the oxidation of As2O3. © 2021 Chin. Soc. for Elec. Eng.

引用

页码：5250 / 5257

页数：7

共 35 条

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