SO3 formation and catalytic oxidation of SO2 by fly ash in copper smelting flue gas

被引：0
|
作者：
Zhang Q. [1 ,2 ]
Wu Y.-N. [1 ]
Chen J.-C. [1 ]
Su Y.-B. [1 ]
Liu H.-P. [1 ]
Yang H.-Y. [1 ,2 ]
机构：
[1] School of Metallurgy, Northeastern University, Shenyang
[2] Key Laboratory for Ecological Metallurgy of Multimetallic Mineral, Northeastern University, Shenyang
来源：
Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2020年 / 30卷 / 09期
关键词：
Catalytic oxidation; Copper metallurgy; Fly ash; Sulfur trioxide; Thermodynamics;
D O I：
10.11817/j.ysxb.1004.0609.2020-37615
中图分类号：
学科分类号：
摘要：
The thermodynamic equilibrium of gas phase system in copper smelting flue gas was studied by FactSage 7.2 software. The effects of temperature and major gas phase composition on SO3 content in equilibrium flue gas were investigated. In addition, the effect of copper smelting ash on SO2 catalytic oxidation was studied on the solid-phase catalytic experimental platform. The results show that temperature and initial content of O2 in flue gas have great influence on the equilibrium concentration of SO3, while initial content of SO2 in flue gas has little effect on the equilibrium concentration of SO3. The fly ash in copper smelting flue promotes the transformation of SO2 to SO3. © 2020, Science Press. All right reserved.
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页码：2144 / 2150
页数：6
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