| 摘要: |
| 在H2O2/醋酸氧化柴油体系中,采用季铵盐型表面活性剂和季铵盐型Gemini表面活性剂作为相转移催化剂(PTC),进行柴油的催化氧化脱硫研究。比较了不同碳链长度的季铵盐型表面活性剂和季铵盐型Gemini表面活性剂的脱硫效果,考察了双子表面活性剂[C12H25-N+-(CH2)2-N+-C12H25]·2Br-(C12-2-C12·2Br-)用量、氧化剂用量、反应温度以及反应时间对脱硫效果的影响。结果 表明,以C12-2-C12·2Br-作为相转移催化剂,m(PTC)∶m(柴油)=0.002 5,V(氧化体系)∶V(柴油) =0.2,反应温度为70 ℃,反应时间为1.5 h时,柴油脱硫率最高可达84.76%,柴油收率为94.52%。 |
| 关键词: 相转移催化剂 柴油 季铵盐 表面活性剂 Gemini 氧化脱硫 |
| DOI：10.3969/j.issn.1007-3426.2014.02.004 |
| 分类号:TE624.9 |
| 基金项目: |
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| Study on catalytic oxidation desulfurization of diesel by quaternary ammonium gemini surfactant |
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Zhao Tianhong1,2, Zhang Yan2, Xia Jijia2, Huang Xiaochuan3
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1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500,Sichuan,China;2.School of Chemistry and Chemical Engineering of Southwest Petroleum University,Chengdu 610500,Sichuan,China;3.CCDC Drilling and Production Engineering Technology Research Institute, Guanghan 618300, Sichuan, China
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| Abstract: |
| Catalytic oxidation desulfurization of diesel in the H2O2/acetate oxidative diesel desulfurization system by quaternary ammonium surfactants and quaternary ammonium Gemini surfactants as phase transfer catalyst (PTC) was studied. The desulfurization effect of quaternary ammonium surfactants and quaternary ammonium Gemini surfactants with different carbon chain was compared. Furthermore, the effects of [C12H25-N+-(CH2)2-N+-C12H25]·2Br- dosage, oxidant dosage, reaction temperature and reaction time on the desulfurization performance were investigated. The result showed that the desulfurization rate of diesel fuel could be up to 84.76% and the diesel yield reached 94.52% while the mass ratio of PTC and diesel fuel was 0.002 5 and volume ratio of oxidation system and diesel fuel was 0.2 after 1.5 h in reaction at 70 ℃, taking [C12H25-N+-(CH2)2-N+-C12H25]·2Br- as the phase transfer catalyst. |
| Key words: phase transfer catalyst diesel quaternary ammonium salt surfactant Gemini oxidative desulfurization |
