Synergy of CuO and CeO₂ combination for mercury oxidation under low-temperature selective catalytic reduction atmosphere

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• 作者：Hailong Li^a ; ^c ; Lei Zhu^a ; Shaokang Wu^a ; Yang Liu^b ; Kaimin Shih^c ; ^kshih@hku.hk
• 关键词：Mercury oxidation ; Copper oxide ; Cerium oxide ; Selective catalytic reduction
• 刊名：International Journal of Coal Geology
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：170
• 期：Complete
• 页码：69-76
• 全文大小：833 K
• 卷排序：170

文摘

Combination of CuO and CeO2 yielded synergy for Hg0 oxidation under SCR atmosphere. 99.0% Hg0 oxidation rate was observed on the CuCeTi catalyst at 200 °C and high GHSV. Enough Lewis acid sites scavenged the competitive adsorption between NH3 and Hg0. Complete recovery of Hg0 oxidation activity was quickly achieved after cutting off NH3.