Study on methane selective catalytic reduction of NO on Pt/Ce0.67Zr0.33O2 and its application |
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Authors: | Zhimin Liu Kangcai Wang Xiaoyu Zhang Jianli Wang Hongyan Cao Maochu Gong Yaoqiang Chen |
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Affiliation: | Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, China |
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Abstract: | Monolithic catalysts of Pt/La-Al2O3 and Pt/Ce0.67Zr0.33O2 were prepared to investigate methane selective catalytic reduction (SCR) of NO.The results indicate that Pt/Ce0.67Zr0.33O2 shows high activity and both NO and CH4 can be converted completely at 450 ℃.Meanwhile,NO and CH4 can be converted completely when there exists excess oxygen.The Pt/Ce0.67Zr0.33O2 catalyst were further investigated by using methane as reducing agent to SCR NO in a novel equipment which combined the CH4 selective catalytic reduction of NO with methane combustion.The result shows that the catalyst is high active and the novel equipment is very effective.The conversion of NO is above 92% under the conditions used in this work.The prepared burner and catalysts have great potential for application. |
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Keywords: | Pt/Ce0.67Zr0.33O2 selective catalytic reduction NO catalytic burner application |
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