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Removing Sulfo-Compounds in FCC Gasoline Through Adsorption and Oxidation-Extraction
Author(s): 
Pages: 164-168
Year: Issue:  2
Journal: Petrochemical Technology

Keyword:  tungsten trioxide/SBA-15 catalystFCC gasoline1-methyl-2-pyrrolidoneoxidative desulfurizationhydrogen peroxideadsorption and oxidation-extractionactive carbon;
Abstract: 采用浸渍法一步合成了WO3/SBA-15催化剂,并通过XRD和BET方法对其进行表征.表征结果显示,WO3均匀分散在SBA-15分子筛表面上,且保持SBA-15分子筛的结构,仍属于介孔材料.以活性炭为吸附剂、H2O2为氧化剂、WO3/SBA-15为催化剂、1-甲基-2-吡咯烷酮(NMP)为萃取剂,对FCC汽油进行吸附-氧化萃取深度脱硫,通过单因素实验考察了工艺条件对脱硫率的影响.实验结果表明,优化的氧化萃取脱硫条件为:氧化反应温度60℃、反应时间75 min、30% (w)H2O20.5 mL、WO3/SBA-15催化剂0.16 g、FCC汽油10 mL; NMP与FCC汽油体积比1.0、萃取时间30 min.在此条件下,脱硫率达81.71%.WO3/SBA-15催化剂再生4次后,催化性能降低.
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