Abstract
The oxidation-extraction coupling desulfurization of the simulated oil (S content 1540 μg/g), which consists of the model sulfur compound of benzothiophene (BT) or dibenzothiophene (DBT) and n-octane solvent was studied with the catalyst of WO 3/ZrO 2, oxidant of H 2O 2 and extraction solvent of DMF. The effects of the temperature, the time, the oxidant dosage, the catalyst dosage, the extraction solvent dosage and the reaction mechanism on oxidation-extraction coupling desulfurization were investigated in detail. The results revealed that under the optimum conditions of the temperature 60°C, the time 90 min, the oxidant dosage V(oil): V(H 2O 2)=33.3:1, the catalyst dosage 0.02 g/mL oil and the extraction solvent dosage V(solvent): V(oil)=1:1, the removal rates of BT and DBT in simulated oil are 92.40% and 97.46%, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 174-178 |
| Number of pages | 5 |
| Journal | Sichuan Daxue Xuebao (Gongcheng Kexue Ban)/Journal of Sichuan University (Engineering Science Edition) |
| Volume | 44 |
| Issue number | 3 |
| State | Published - May 2012 |
Keywords
- Benzothiophene
- Coupling oxidation-extraction
- Desulfurization
- Dibenzothiophene
- Simulated oil
- Solid superacid