An integrated system of biological and catalytic oxidation for the removal of o-xylene from exhaust
文献类型：会议论文
| 作者 | Li, Lin; Zhang, Changbin; He, Hong; Liu, Junxin |
| 出版日期 | 2007 |
| 会议名称 | 2nd Japan-China Workshop on Environmental Catalysis and Eco- Materials |
| 会议日期 | OCT 23-25, 2005 |
| 会议地点 | Fukuoka, JAPAN |
| 关键词 | integrated system bioreactor catalytic oxidation exhaust treatment o-xylene |
| 英文摘要 | Biofiltration is an efficient technology for treatment of gaseous waste. Its disadvantages, however, include large volume of bioreactor and slow adaptation to fluctuating concentrations in waste gas. Catalytic oxidation offers a high destructive efficiency at relatively low operating temperature and small unit. A bench scale system integrated with a biofilter and a catalytic oxidation unit for the treatment of gases containing o-xylene was investigated in this study. The catalytic oxidation unit was packed with Cu/Al2O3 catalyst. The results showed that 90% of o-xylene could be removed in the biofilter at the load below 38.2 g m(-3) h(-1). High o-xylene concentration in inlet gas resulted in an overload of the biofilter. Using the Cu/Al2O3 catalytic oxidation unit, the concentration of o-xylene could be reduced evidently. The combination of the chemical and microbial processes not only led to a high and stable efficiency of o-xylene conversion, but also improved capacity resisting the shock loads. The Cu/Al2O3 was studied for o-xylene oxidation in temperature range of 90-320 degrees C. The o-xylene conversion was improved correspondingly with the increasing of oxidation temperature. The reaction mechanism of o-xylene oxidation on Cu/Al2O3 was also investigated using diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). (C) 2007 Elsevier B.V. All rights reserved. |
| ISSN号 | 0920-5861 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/24723]  |
| 专题 | 生态环境研究中心_大气环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Li, Lin,Zhang, Changbin,He, Hong,et al. An integrated system of biological and catalytic oxidation for the removal of o-xylene from exhaust[C]. 见:2nd Japan-China Workshop on Environmental Catalysis and Eco- Materials. Fukuoka, JAPAN. OCT 23-25, 2005. |
入库方式： OAI收割
来源：生态环境研究中心
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