期刊
CHEMOSPHERE
卷 155, 期 -, 页码 9-17出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2016.03.114
关键词
Plasma-catalysis; Dielectric barrier discharge; Acetone removal; CuO/gamma-Al2O3; Response surface method
资金
- National Natural Science Foundation of China [51206143]
- National Science Fund for Distinguished Young Scholars [51125025]
- Royal Society (UK) [RG120591]
In this work, plasma-catalytic removal of low concentrations of acetone over CuO/gamma-Al2O3 catalysts was carried out in a cylindrical dielectric barrier discharge (DBD) reactor. The combination of plasma and the CuO/gamma-Al2O3 catalysts significantly enhanced the removal efficiency of acetone compared to the plasma process using the pure gamma-Al2O3 support, with the 5.0 wt% CuO/gamma-Al2O3 catalyst exhibiting the best acetone removal efficiency of 67.9%. Catalyst characterization was carried out to understand the effect the catalyst properties had on the activity of the CuO/gamma-Al2O3 catalysts in the plasma-catalytic reaction. The results indicated that the formation of surface oxygen species on the surface of the catalysts was crucial for the oxidation of acetone in the plasma-catalytic reaction. The effects that various operating parameters (discharge power, flow rate and initial concentration of acetone) and the interactions between these parameters had on the performance of the plasma-catalytic removal of acetone over the 5.0 wt% CuO/gamma-Al2O3 catalyst were investigated using central composite design (CCD). The significance of the independent variables and their interactions were evaluated by means of the Analysis of Variance (ANOVA). The results showed that the gas flow rate was the most significant factor affecting the removal efficiency of acetone, whilst the initial concentration of acetone played the most important role in determining the energy efficiency of the plasma-catalytic process. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据