Adsorptive removal of toluene and dichloromethane from humid exhaust on MFI, BEA and FAU zeolites: An experimental and theoretical study
文献类型：期刊论文
| 作者 | Deng, Hua; Pan, Tingting; Zhang, Yan; Wang, Lian; Wu, Qinming; Ma, Jinzhu; Shan, Wenpo; He, Hong
|
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2020-08-15 |
| 卷号 | 394页码:1-10 |
| 关键词 | Adsorption Volatile organic compound Zeolites Toluene Dichloromethane DFT |
| ISSN号 | 1385-8947 |
| 英文摘要 | Toluene and dichloromethane are two kinds of frequently encountered VOC species derived from solvent usage, which severely threaten human health and the ecological environment. At the same time, they are valuable industrial resources that can be recovered. In this study, different types of zeolites with various topological structures, including FAU (NaX, USY), MFI (Silicalite-1) and BEA (Beta), were employed for adsorptive recovery of both VOCs. All adsorbents were characterized by means of X-ray diffraction, scanning electron microscopy, N-2 adsorption, and X-ray photoelectron spectroscopy. Static adsorption equilibrium and dynamic breakthrough experiments were conducted to determine the adsorption efficiency of VOCs from water vapor. An ab-initio theoretical calculation was carried out to discern and confirm the adsorption selectivity. Experimental results and theoretical simulations consistently showed that USY is the best candidate to selectively abate toluene, and Silicalite-1 is the best adsorbent to remove both toluene and dichloromethane from mixed exhaust. The supercage structure of USY and its high Si/Al ratio gives rise to strong affinity toward toluene compared to dichloromethane and water. The small-pore network of Silicalite-1 gives rise to good recovery of both toluene and dichloromethane. The results gained are important for more rational selection of adsorbents for complicated mixtures. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44535]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 推荐引用方式 GB/T 7714 | Deng, Hua,Pan, Tingting,Zhang, Yan,et al. Adsorptive removal of toluene and dichloromethane from humid exhaust on MFI, BEA and FAU zeolites: An experimental and theoretical study[J]. CHEMICAL ENGINEERING JOURNAL,2020,394:1-10. |
| APA | Deng, Hua.,Pan, Tingting.,Zhang, Yan.,Wang, Lian.,Wu, Qinming.,...&He, Hong.(2020).Adsorptive removal of toluene and dichloromethane from humid exhaust on MFI, BEA and FAU zeolites: An experimental and theoretical study.CHEMICAL ENGINEERING JOURNAL,394,1-10. |
| MLA | Deng, Hua,et al."Adsorptive removal of toluene and dichloromethane from humid exhaust on MFI, BEA and FAU zeolites: An experimental and theoretical study".CHEMICAL ENGINEERING JOURNAL 394(2020):1-10. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。