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| Dehydrochlorination of 1,2-dichloroethane over Ba-modified Al2O3 catalysts | |
| Bai, SX; Dai, QG; Chu, XX; Wang, XY; Wang, XY (reprint author), E China Univ Sci & Technol, Res Inst Ind Catalysis, Key Lab Adv Mat, Shanghai 200237, Peoples R China. | |
| 2016 | |
| Source Publication | RSC ADVANCES
 |
| ISSN | 2046-2069 |
| Volume | 6Issue:58Pages:52564-52574 |
| Subtype | 期刊论文 |
| Abstract | Bimodal mesoporous alumina (Al2O3) was prepared using polyethyleneglycol (PEG 20 000) and cetyl trimethyl ammonium bromide as a template. The incorporation of Ba with various loadings was carried out by incipient wetness. Characterization was performed by XRD, N-2 sorption isotherms, and pyridine FTIR. Ba can be highly dispersed on Al2O3 covering the strong acid sites of Al2O3. In the catalytic dehydrochlorination of 1,2-dichloroethane (1,2-DCE), the Ba/Al2O3 catalysts present a high activity, of which Al2O3 is most active with 95% conversion at 325 degrees C, related to the more Lewis acidic Al3+ sites in a tetrahedral environment. 1,2-DCE adsorbs dissociatively on Lewis acid-base pair sites, forming chlorinated ethoxy species, which are supposed to be intermediate species for vinyl chloride (VC) production. At a temperature higher than 400 degrees C, the dehydrochlorination of VC occurs on the strong acid sites of Al2O3. Ba can promote greatly the selectivity for VC through a decrease in the strong acid sites. A high stable activity for dehydrochlorination and high selectivity for VC can be obtained over Ba/Al2O3 in the presence of oxygen. |
| DOI | 10.1039/c6ra08855d |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000378563200007 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/26468 |
| Collection | 中科院上海应用物理研究所2011-2020年 |
| Corresponding Author | Wang, XY (reprint author), E China Univ Sci & Technol, Res Inst Ind Catalysis, Key Lab Adv Mat, Shanghai 200237, Peoples R China. |
| Recommended Citation GB/T 7714 | Bai, SX,Dai, QG,Chu, XX,et al. Dehydrochlorination of 1,2-dichloroethane over Ba-modified Al2O3 catalysts[J]. RSC ADVANCES,2016,6(58):52564-52574. |
| APA | Bai, SX,Dai, QG,Chu, XX,Wang, XY,&Wang, XY .(2016).Dehydrochlorination of 1,2-dichloroethane over Ba-modified Al2O3 catalysts.RSC ADVANCES,6(58),52564-52574. |
| MLA | Bai, SX,et al."Dehydrochlorination of 1,2-dichloroethane over Ba-modified Al2O3 catalysts".RSC ADVANCES 6.58(2016):52564-52574. |
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| Dehydrochlorination （456KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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