氧气氧化脱除模拟汽柴油中的稠环噻吩类硫化物  

Oxidation of Sulfur Compounds in Model Fuel with Oxygen

作　　者：高璐璐[1] 韩笑[1] 张瀚[1] 吕树祥[1] GAO Lulu;HAN Xiao;ZHANG Han;Lü Shuxiang(College of Chemical Engineering and Materials Science,Tianjin University of Science & Technology,Tianjin 300457,China)

机构地区：[1]天津科技大学化工与材料学院,天津300457

出　　处：《天津科技大学学报》2017年第4期46-51,共6页Journal of Tianjin University of Science & Technology

基　　金：天津市应用基础与前沿技术研究重点资助项目(14JCZDJC40600)

摘　　要：在无催化剂的反应体系中,氧气与烃类反应生成有机过氧化物,利用有机过氧化物将模拟汽柴油中的稠环噻吩类硫化物氧化.实验中考察了反应温度、反应时间、氧气分压对二苯并噻吩和噻吩脱除的影响.实验结果表明:反应温度140,℃、反应时间4,h、初始氧气分压0.4,MPa时,二苯并噻吩的脱除率达到98.4%,;在反应温度150,℃、反应时间4,h、初始氧气分压0.8,MPa的条件下,噻吩的脱除率能达到81.8%,.利用傅里叶变换红外光谱、核磁共振氢谱对二苯并噻吩氧化反应后产生的白色晶体进行了表征,确定其为二苯并噻吩砜.In a system without catalysts,oxygen reacted with octane to produce hydroperoxides in-situ,which were used as oxidants to oxidize the sulfur compounds in the model fuel.A detailed parametric study was performed with different reaction temperature,reaction time,and initial oxygen partial pressure,to investigate their effects on the removal of dibenzothiophene(DBT)and thiophene(Th).The removal of DBT could reach98.4%,at140,℃,after4,h,with initial oxygen partial pressure at0.4,MPa.The removal of thiophene can reach81.8%,at150,℃,after4,h,with oxygen partial pressure at0.8,MPa.The white crystals were characterized by FTIR and1H NMR,and identified as dibenzothiophene sulfone(DBTO2).

关 键 词：氧气 氧化 有机过氧化物 二苯并噻吩 噻吩 

分 类 号：TF741.332[冶金工程—钢铁冶金]