Impact of SO2 and H2O on Gas-phase Arsenic Removal by Sorbent Fe2O3/γ-Al2O3 in Simulated Flue Gas of Oxy-coal Combustion

被引：0
|
作者：
Zhang Y. [1 ]
Wang C. [1 ]
Liu H. [1 ]
机构：
[1] Department of Energy Power & Mechanical Engineering, North China Electric Power University, Baoding, 071003, Hebei Province
来源：
| 1746年 / Chinese Society for Electrical Engineering卷 / 37期
关键词：
Gas-phase arsenic; H[!sub]2[!/sub]O; Oxy-coal combustion; SO[!sub]2[!/sub; Sorbent;
D O I：
10.13334/j.0258-8013.pcsee.152498
中图分类号：
学科分类号：
摘要：
The sorbent of Fe2O3/γ-Al2O3 prepared by ultrasonic-assisted precipitation method were applied to remove gas-phase arsenic in simulated flue gas of oxy-coal combustion. To investigate the influence of high concentration of carbon dioxide, sulfur dioxide and water vapor on gas-phase arsenic removal by Fe2O3/γ-Al2O3 in oxy-coal combustion, a laboratory scale experiment was carried out. The results show that CO2 greatly inhibits arsenic removal by Fe2O3/γ-Al2O3 and high concentration of H2O can promote adsorption process to a certain extent. Within a certain concentration, the increase of SO2 has a promotion effect to adsorption. Once the SO2 concentration exceeds a certain value, it brings inhibition. And at this point, the increase of oxygen concentration will contribute to eliminate the inhibition effect of high concentration of SO2. © 2017 Chin. Soc. for Elec. Eng.
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页码：1746 / 1752
页数：6
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