Novel effect of SO2 on selective catalytic oxidation of slip ammonia from coal-fired flue gas over IrO2 modified Ce-Zr solid solution and the mechanism investigation
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- 作者：Wanmiao Chen ; Zan Qu ; Wenjun Huang ; Xiaofang Hu ; Naiqiang Yan ; nqyan@sjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Slip ammonia ; SCO ; Ir ; Internal SCR ; DRIFT
- 刊名：Fuel
- 出版年：2016
- 出版时间：15 February 2016
- 年：2016
- 卷：166
- 期：Complete
- 页码：179-187
- 全文大小：1178 K
文摘
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The IrO2/Ce0.6Zr0.4O2 (PVP) catalyst displayed excellent performance for NH3 oxidation.
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SO2 could inhibit the NH3 removal, but also improved the N2 selectivity to 100%.
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The mechanism of NH3 oxidation follows two pathways at different temperature region.
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The internal SCR mechanism was the dominant reaction pathway over IrO2 modified catalyst.