汽油电化学催化氧化脱硫  

Desulfurization of gasoline by electrochemically catalytic oxidation

作　　者：王文波[1] 汪树军[1] 刘红研[2] 张伟[1] 王义刚[1] 

机构地区：[1]中国石油大学(北京)重质油国家重点实验室 [2]中国石油大学化学科学与工程学院,北京102249

出　　处：《化工学报》2006年第12期3033-3039,共7页CIESC Journal

基　　金：中国石油大学(北京)国家重点实验室开放基金项目(200310)~~

摘　　要：采用一种新型的电化学催化氧化方法，研究了在碱性电解体系中汽油脱硫的规律．结果表明：在碱性电解体系中汽油电解催化氧化脱硫的理论分解电压范围为0．5～1．5V;适宜的电解条件为：分解电压1．90V，碱液浓度1．0mol·L^-1，油／电解液进料体积比1／3，搅拌速度300r·min^-1，适宜温度50℃，电流密度155mA·cm^-2，进料流速200ml·min^-1．在此条件下油品硫含量从310μg·g^-1下降到120μg·g^-1左右，且对油品的主要性质没有影响．In order to further reduce the sulfur content in gasoline, a new gasoline desulfurization process by electrochemically catalytic oxidation was presented, and the desulfurization of gasoline was investigated in an alkaline solution. The results indicated that the theoretical decomposition voltage ranged from 0.5 V to 1.5 V. The optimal desulfurization conditions were as follows： the decomposition voltage 1.90 V, the concentration of alkali liquor 1.0 tool· L^-l , the volume ratio of oil-to-electrolyte 1/3, the rate of stirring 300 r·min^-1, the reaction temperature 50℃, the current intensity 155 mA·cm^-2 , and the flow rate of gasoline 200 ml·min^-1. Under these conditions the concentration of sulfur in gasoline was reduced from 310 μg·g^-1 to 120 μg·^-1, and the major properties of gasoline were not affected.

关 键 词：汽油 电化学催化氧化 脱硫 

分 类 号：O646[理学—物理化学] TE624[理学—化学]