新疆油砂溶剂萃取研究  

Solvent Extraction Investigation on Xinjiang Oil Sands

作　　者：赵瑞玉[1,2] 张超[1,2] 鲍严旭 王通[1,2] 杨朝合[1,2] 刘晨光[1,2] 

机构地区：[1]重质油国家重点实验室中国石油大学(华东),山东青岛266580 [2]CNPC催化重点实验室中国石油大学(华东),山东青岛266580

出　　处：《油田化学》2015年第2期282-286,共5页Oilfield Chemistry

基　　金：中央高校基本科研业务费专项资金资助项目"油砂性质与分离工艺研究"(项目11CX05016A)

摘　　要：利用复合有机溶剂对新疆油润性油砂进行萃取实验,通过溶剂溶解度参数的运用选择了适合于萃取新疆油砂的可替代甲苯的复合有机溶剂。考察了溶剂油砂体积质量比、萃取时间、萃取温度、搅拌速度等因素对油砂原油回收率的影响。实验结果表明:运用正己烷-乙酸乙酯(乙酸乙酯体积分数为12.5%)复合溶剂对颗粒小于40目的油砂进行萃取,在萃取温度50℃、剂砂比2∶1(m L∶g)、萃取时间30 min、搅拌速率为500 r/min的条件下,油砂原油的回收率可达78%以上。Complex solvents were used to extract the crud oil from oil-wet oil sands from Xinjiang. In this study,the n-hexane/ethyl acetate(H-EA)complex solvents were chosen based on the theory of solubility parameter to substitute toluene,and the effects of the experiment conditions,including the ratio of solvent volume to the oil sand mass,extraction time,operating temperature,and stirring velocity,on the oil recovery were discussed. The results showed that,as for the oil sands,the optimal extraction agent was H-EA complex solvent containing EA volume fraction of 12.5%. The extraction was most effective when the stirring velocity was of 500 r/min,the extracting time was of 30 min,the extraction temperature was of 50℃ and the ratio of solvent volume to oil sand mass was 2∶1(m L∶g). Under the condition,the oil recovery of oil sands could reach up to 78%.

关 键 词：油砂 复合溶剂萃取 溶解度参数 回收率 

分 类 号：TE626.8[石油与天然气工程—油气加工工程]