Effects of metal and acidic sites on the reaction by-products of butyl acetate oxidation over palladium-based catalysts
文献类型:期刊论文
作者 | Yue, Lin ; He, Chi ; Hao, Zhengping ; Wang, Shunbing ; Wang, Hailin |
刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
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出版日期 | 2014 |
卷号 | 26期号:3页码:702-707 |
关键词 | catalytic oxidation butyl acetate reaction by-product Pd/ZSM-5 VOCs |
ISSN号 | 1001-0742 |
中文摘要 | Catalytic oxidation is widely used in pollution control technology to remove volatile organic compounds. In this study, Pd/ZSM-5 catalysts with different Pd contents and acidic sites were prepared via the impregnation method. All the catalysts were characterized by means of N-2 adsorption-desorption, X-ray fluorescence (XRF), H-2 temperature programmed reduction (H-2-TPR), and NH3 temperature programmed desorption (NH3-TPD). Their catalytic performance was investigated in the oxidation of butyl acetate experiments. The by-products of the reaction were collected in thermal desorption tubes and identified by gas chromatography/mass spectrometry. It was found that the increase of Pd content slightly changed the catalytic activity of butyl acetate oxidation according to the yield of CO2 achieved at 90%, but decreased the cracking by-products, whereas the enhancement of strong acidity over Pd-based catalysts enriched the by-product species. The butyl acetate oxidation process involves a series of reaction steps including protolysis, dehydrogenation, dehydration, cracking, and isomerization. Generally, butyl acetate was cracked to acetic acid and 2-methylpropene and the latter was an intermediate of the other by-products, and the oxidation routes of typical by-products were proposed. Trace amounts of 3-methylpentane, hexane, 2-methylpentane, pentane, and 2-methylbutane originated from isomerization and protolysis reactions. |
WOS记录号 | WOS:000333447000025 |
公开日期 | 2015-03-24 |
源URL | [http://ir.rcees.ac.cn/handle/311016/9354] ![]() |
专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
推荐引用方式 GB/T 7714 | Yue, Lin,He, Chi,Hao, Zhengping,et al. Effects of metal and acidic sites on the reaction by-products of butyl acetate oxidation over palladium-based catalysts[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2014,26(3):702-707. |
APA | Yue, Lin,He, Chi,Hao, Zhengping,Wang, Shunbing,&Wang, Hailin.(2014).Effects of metal and acidic sites on the reaction by-products of butyl acetate oxidation over palladium-based catalysts.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,26(3),702-707. |
MLA | Yue, Lin,et al."Effects of metal and acidic sites on the reaction by-products of butyl acetate oxidation over palladium-based catalysts".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 26.3(2014):702-707. |
入库方式: OAI收割
来源:生态环境研究中心
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