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| Content Provider | Springer Nature Link |
|---|---|
| Author | Wang, Xiaomeng Han, Mingjuan Wan, Hui Yang, Cao Guan, Guofeng |
| Copyright Year | 2010 |
| Abstract | Brønsted acidic ionic liquids (ILs), N-methylimidazole hydrogen sulfate ([HMIm]HSO$_{4}$) and N-methylpyrrolidone hydrogen sulfate ([HNMP]HSO$_{4}$), are synthesized and employed as extractants to extract thiophene from model gasoline (thiophene dissolved in n-octane). The effect of extraction temperature, extraction time and volume ratio of ILs to model gasoline on desulfurization rates is investigated. Then, the optimal desulfurization conditions are obtained: the ratio of ILs to model gasoline is 1.... 1, extraction temperature is 50°C for [HMIm]HSO$_{4}$ and 60°C for [HNMP]HSO$_{4}$, extraction time is 60 min. Meanwhile, the desulfurization rate of [HNMP] HSO$_{4}$ for model gasoline is 62.8%, which is higher than that of [HMIm]HSO$_{4}$ (55.5%) under optimal conditions. The reason is discussed on the basis of the interaction energy between thiophene and ILs at the B3LYP/6-311 ++ G(d,p) level. Furthermore, the total desulfurization rate of [HNMP]HSO$_{4}$ and [HMIm]HSO$_{4}$ reaches 96.4% and 94.4%, respectively, by multistage extraction. Finally, the used ILs can be reused by vacuum drying, and their desulfurization rates are not significantly decreased after recycling 7 times in single-stage desulfurization. |
| Starting Page | 107 |
| Ending Page | 112 |
| Page Count | 6 |
| File Format | |
| ISSN | 20950179 |
| Journal | Frontiers of Chemical Engineering in China |
| Volume Number | 5 |
| Issue Number | 1 |
| e-ISSN | 16737474 |
| Language | English |
| Publisher | SP Higher Education Press |
| Publisher Date | 2010-05-22 |
| Publisher Institution | Chinese Universities |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | brønsted ionic liquids model gasoline thiophene extraction density functional theory Nanotechnology Industrial Chemistry/Chemical Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemical Engineering |
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