镧钼钒磷杂多配合物的合成及其在柴油氧化脱硫中的应用  

Synthesis and Application of Lanthanum Molybdovanadophosphate Heteropoly Complexes for Oxidation Desulfurization of Diesel

作　　者：宾晓蓓[1] 董丽娟[1] 李小林[1] 曹宏[2] 冯绢[2] 

机构地区：[1]武汉理工大学资源与环境工程学院,湖北武汉430070 [2]武汉工程大学材料科学与工程学院,湖北武汉480074

出　　处：《武汉大学学报（理学版）》2008年第6期692-696,共5页Journal of Wuhan University:Natural Science Edition

基　　金：湖北省教育厅优秀中青年项目(2003B001);湖北省自然科学基金(2004ABA090)资助项目

摘　　要：在合成不同钒掺量磷钼杂多酸基础上,用降解法合成了3种Keggin结构的镧钼钒磷杂多配合物,并以之为催化剂,分别用双氧水、过氧乙酸作氧化剂,甲醇、乙二胺作为萃取剂进行了柴油氧化脱硫实验.实验结果表明:以掺有2个钒原子的镧钼钒磷杂多配合物为催化剂、过氧乙酸为氧化剂、乙二胺为萃取剂可将市售柴油的硫含量由1 815.8μg.g-1降低至102.6μg.g-1,脱硫率达到了94.35%.Three kinds of Lanthanum molybdovanadophosphate heteropoly complexes （Signed as La- HPA-Vn ,n= 1,2,3） with Keggin structure were synthesized by degrading the precursors of molybdovanadophosphate heteropoly ether complexes, and the experiments of oxidation desulfurization of diesel oil had been processed by means of the La-HPA-Vn as catalysts, while H2O2 or peroxyacetic acid as oxidant and methanol or ethylenediamine as extraction agent respectively. The experiment results show that the sulfur content of the diesel is reduced from primary 1 815.8 μg.g^-1 to 102.6 μg.g^-1 when the La-HPA-V2 was used as the catalyst, peroxyacetic acid was used as oxidant, and ethylenediamine was used as extractant. The ratio of desulphurization is 94.35%.

关 键 词：柴油 脱硫 稀土 杂多配合物 

分 类 号：X382.1[环境科学与工程—环境工程]