氧化-萃取耦合模拟油品深度脱硫研究
Study on Deep Desulfurization of Simulated Oil by Coupling Oxidation-extraction
作者：张存(扬州大学 化学化工学院)；王洪娟(扬州大学 化学化工学院)；刘涛(扬州大学 化学化工学院)；王峰(扬州大学 化学化工学院)；潘小玉(扬州大学 化学化工学院)；刘晓勤(南京工业大学 化学化工学院)
Author：Zhan Cun(College of Chem. and Chemical Eng.,Yangzhou Univ.)；Wang Hongjuan(College of Chem. and Chemical Eng.,Yangzhou Univ.)；Liu Tao(College of Chem. and Chemical Eng.,Yangzhou Univ.)；Wang Feng(College of Chem. and Chemical Eng.,Yangzhou Univ.)；Pan Xiaoyu(College of Chem. and Chemical Eng.,Yangzhou Univ.)；Liu Xiaoqin(College of Chem.and Chemical Eng., Nanjing Univ. of Technol.)
收稿日期：2011-09-02 年卷（期）页码：2012,44(3):174-178
期刊名称：工程科学与技术
Journal Name：Advanced Engineering Sciences
关键字：模拟油品；氧化-萃取耦合；固体超强酸；苯并噻吩；二苯并噻吩；脱硫
Key words：simulated oil；coupling oxidation-extraction；solid superacid；benzothiophene； dibenzothiophene；desulfurization
基金项目：国家自然科学基金资助项目(20806064)
中文摘要
以分别溶有苯并噻吩(BT)和二苯并噻吩(DBT)的正辛烷溶液为模拟油品(硫含量均为1 540 μg/g)，以WO3/ZrO2固体超强酸为催化剂，H2O2为氧化剂，N,N-二甲基甲酰胺(DMF)为萃取溶剂，考察氧化-萃取耦合工艺参数对BT和DBT脱除率的影响，确定模拟油品氧化-萃取耦合脱硫的最佳工艺条件，并探讨氧化-萃取耦合脱硫机理。结果表明，在氧化-萃取耦合脱硫优化条件下，即耦合脱硫温度60 ℃，耦合脱硫时间90 min，氧化剂用量V(油)∶V(H2O2)=33.3∶1，催化剂用量0.02 g/mL油，萃取溶剂用量V(溶剂)∶V(油)=1∶1，此时BT和DBT脱除率分别达到92.40%和97.46%。
英文摘要
The oxidation-extraction coupling desulfurization of the simulated oil(S content 1 540 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 WO3/ZrO2，oxidant of H2O2 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 ℃，the time 90 min，the oxidant dosage V(oil)∶V(H2O2)=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.
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