Kinetic Modeling of Nitrate Reduction Catalyzed by Pd鈥揅u Supported on Carbon Nanotubes

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• 作者：Ol铆via Salom茅 G. P. Soares ; Xiaolei Fan ; Jos茅 J. M. 脫rf茫o ; Alexei A. Lapkin ; Manuel Fernando R. Pereira
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2012
• 出版时间：April 4, 2012
• 年：2012
• 卷：51
• 期：13
• 页码：4854-4860
• 全文大小：358K
• 年卷期：v.51,no.13(April 4, 2012)
• ISSN：1520-5045

文摘

New catalysts for liquid phase nitrate reduction were recently synthesized using multiwalled carbon nanotubes as a support. The most promising catalyst (1%Pd鈥?%Cu/CNT) was used in this kinetic study. The catalyst experimentally showed high selectivity to nitrogen, between 80 and 89%. A mechanistic model was applied to experimental data to show that the reason for high selectivity is due to the enhanced mass transfer near the catalyst surface promoted by the use of a structured support. The experimental selectivity is close to the maximum selectivity predicted for this catalytic system at the best operating conditions and in the absence of any mass transfer limitations.