双氧水催化氧化-萃取法戊烷超深度脱硫技术  

Ultra-deep Desulfurization of Pentane with Hydrogen Peroxide by Catalytic Oxidation-extraction Process

作　　者：蒋博龙[1] 常凯[1] 李海燕[1] 宋华[1] 

机构地区：[1]东北石油大学化学化工学院,大庆163318

出　　处：《化学通报》2010年第7期640-644,共5页Chemistry

基　　金：国家大学生创新性实验计划课题(81022007)资助

摘　　要：以双氧水为氧化剂,采用蒸馏水做溶剂,研究了催化氧化-萃取法生产超低硫戊烷技术,考察了催化剂、助催化剂以及氧化条件对脱硫效果的影响。在戊烷10mL、双氧水0.5mL、催化剂钨酸0.009g、助催化剂甲醇0.8mL、温度50℃、时间100min条件下反应,在剂油比为2:1的条件下用蒸馏水于15℃萃取反应混合物15min,戊烷中的硫含量由24.4mg/L降至0.5mg/L,脱硫率可达98.0%。A method of producing ultra-low sulfur pentane by a catalytic oxidation-extraction process had been studied,which using hydrogen peroxide as oxidant and distilled water as solvent.The effects of catalyst,cocatalyst and oxidation conditions on desulphurization were investigated.Under the reaction conditions of 10mL of pentane raw material,0.5mL hydrogen peroxide,0.009g tungstic acid catalyst,0.8mL cocatalyst methanol,50℃ temperature,the reaction was carried out 100min,then the reaction mixture was extracted by using distilled water as extractant under solvent /oil ratio 2：1 at 15℃ for 15min,the sulfur content of pentane was reduced from 24.4mg /L to 0.5mg /L,and desulphurization rate reached up to 98.0%.

关 键 词：双氧水 氧化 萃取 水 戊烷 超深度脱硫 

分 类 号：TQ314.259[化学工程—高聚物工业]