selectiveesterificationofglycerolwithaceticacidtodiacetinusingantimonypentoxideasreusablecatalyst
文献类型：期刊论文
| 作者 | Hu Wenfei3; Zhang Yan2; Huang Yizheng1; Wang Jiaxi3; Gao Jin1; Xu Jie1 |
| 刊名 | journalofenergychemistry
 |
| 出版日期 | 2015-01-01 |
| 卷号 | 24期号:5页码:632 |
| ISSN号 | 2095-4956 |
| 英文摘要 | Glycerol can be obtained as a by-product during biodiesel manufacture. It is important to convert glycerol to value-added products. Glycerol esterification with acetic acid is one of the most promising approaches for glycerol utilization. It is usually difficult to obtain diacetin with good activity and selectivity. In this work, glycerol esterification with acetic acid over different metal oxides, such as Bi2O3, Sb2O3, SnO2, TiO2, Nb2O5 and Sb2O5, was investigated. It was found that in the six investigated metal oxides, only Sb2O5 resulted in good activity and selectivity to diacetin. Under the optimized conditions, the glycerol conversion reached 96.8%, and the selectivity to diacetin reached 54.2%, while the selectivity to monoacetin and triacetin was 33.2% and 12.6%, respectively. The catalysts were characterized with FT-IR spectra of adsorbed pyridine, which indicated that in the six investigated metal oxides, only Sb2O5 possessed 81-misted acid sites strong enough to protonate adsorbed pyridine. The good catalytic activity and selectivity to diacetin might be mainly attributable to the Bronsted acid sites of Sb2O5. Reusability tests showed that with Sb2O5 as catalyst, after six reaction cycles, no significant change in the glycerol conversion and the selectivity to diacetin was observed. (C) 2015 Science Press and Dalian Institute of Chemical Physics. All rights reserved. |
| 资助项目 | ["Strategic Priority Research Program-Climate Change: Carbon Budget and Related Issues" of the Chinese Academy of Sciences] ; [National Natural Science Foundation of China] |
| 语种 | 英语 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/177090]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.中国科学院大连化学物理研究所 2.天津大学 3.河北工业大学 |
| 推荐引用方式 GB/T 7714 | Hu Wenfei,Zhang Yan,Huang Yizheng,et al. selectiveesterificationofglycerolwithaceticacidtodiacetinusingantimonypentoxideasreusablecatalyst[J]. journalofenergychemistry,2015,24(5):632. |
| APA | Hu Wenfei,Zhang Yan,Huang Yizheng,Wang Jiaxi,Gao Jin,&Xu Jie.(2015).selectiveesterificationofglycerolwithaceticacidtodiacetinusingantimonypentoxideasreusablecatalyst.journalofenergychemistry,24(5),632. |
| MLA | Hu Wenfei,et al."selectiveesterificationofglycerolwithaceticacidtodiacetinusingantimonypentoxideasreusablecatalyst".journalofenergychemistry 24.5(2015):632. |
入库方式： OAI收割
来源：大连化学物理研究所
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