Oxidative Desulfurization of Simulated Gasoline over Metal Oxide-loaded Molecular Sieve  

作　　者：陈兰菊 郭绍辉 赵地顺 

机构地区：[1]State Key Lab of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China [2]Department of Chemistry, Hebei University of Science and Technology, Shijiazhuang 050018, China

出　　处：《Chinese Journal of Chemical Engineering》2007年第4期520-523,共4页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （No.20276015） and the Natural Science Foundation of Hebei Province （No.203364）.

摘　　要：A simulated gasoline consisting of model sulfur compounds of thiophene （C4H4S） and 3-methythiophene （3-MC4H4S） dissolved in n-heptane was tested for the oxidative desulfurization in the hydrogen peroxide （H202） and formic acid oxidative system over metal oxide-loaded molecular sieve. The effects of the oxidative system, loaded metal oxides, phase transfer catalyst, the addition of olefin and aromatics on sulfur removal were investigated in details. The results showed that the sulfur removal rate of simulated gasoline in the H202/formic acid system was higher than in other oxidative systems. The cerium oxide-loaded molecular sieve was found very active catalyst for oxidation of simulated gasoline in this system. The sulfur removal rates of C4H4S and 3-MC4H4S were enhanced when phase transfer catalyst （PTC） was added. However, the sulfur removal rate of simulated gasoline was reduced with the addition of olefin and aromatics.A simulated gasoline consisting of model sulfur compounds of thiophene(C4H4S)and 3-methythiophene (3-MC4H4S)dissolved in n-heptane was tested for the oxidative desulfurization in the hydrogen peroxide(H2O2) and formic acid oxidative system over metal oxide-loaded molecular sieve.The effects of the oxidative system, loaded metal oxides,phase transfer catalyst,the addition of olefin and aromatics on sulfur removal were investi- gated in details.The results showed that the sulfur removal rate of simulated gasoline in the H2O2/formic acid sys- tem was higher than in other oxidative systems.The cerium oxide-loaded molecular sieve was found very active catalyst for oxidation of simulated gasoline in this system.The sulfur removal rates of C4H4S and 3-MC4H4S were enhanced when phase transfer catalyst(PTC)was added.However,the sulfur removal rate of simulated gasoline was reduced with the addition of olefin and aromatics.

关 键 词：oxidative desulfurization simulated gasoline THIOPHENE 3-methythiophene molecular sieve 

分 类 号：TQ55[化学工程]