摘要
以低温高效脱水为研究目的,采用破乳剂脱水、掺稀油脱水、加热脱水等3种技术,对胜利油田陈南联合站的稠油脱水参数进行了优化研究。研究了陈南稠油和稀油的物性条件,确定了乳状液配制的最佳条件为乳化机转速2 000 r/min、搅拌时间15 min。考察了掺稀比、破乳温度和破乳剂体积分数等因素对稠油热化学脱水效果的影响,结果表明:胜利油田陈南联合站稠油热化学破乳沉降运行工艺的最佳参数为掺稀比(稀油与稠油的体积比)1.5、破乳温度90℃、破乳剂体积分数100×10^(-6);在最佳工艺条件下沉降脱水24 h,得到的余油含水率低于2.0%,满足成品油的外输条件。根据试验结果,对破乳剂脱水、掺稀油脱水和加热脱水的机理进行了分析探讨,对稠油的低温高效热化学沉降脱水工艺具有指导意义。
The processing parameters of dehydration of thick oil of Shengli Oil Field Chennan Combination Station are studied and optimized by applying three technologies of demulsifier dehydration,adding thin oil dehydration and thermal dehydration in order to enhance the dehydration efficiency with low temperature.The physical properties of thick oil of Chennan Combination Station and thin oil are studied and the optimum conditions for preparing emulsion are determined that the rotating speed of emulsifying machine is 2 000 r/min and mixing time is 15 min.The effects of volume ratio of thin oil to thick oil,demulsification temperature and volume fraction of demulsifier on the thermal-chemical dehydration efficiency of thick oil are investigated,and the results show that the optimum parameters of the thermal-chemical demulsification and sedimentation process for mentioned thick oil are obtained,which the volume ratio of thin oil to thick oil is 1.5,demulsification temperature is 90℃and volume fraction of demulsifier is 100×10-6.Under the optimum conditions,the moisture content of residual oil can be lower than 2%after dehydration and sedimentation for 24 h,which can meet the requirement of refined oil product transport.The mechanisms of demulsifier dehydration,adding thin oil dehydration and thermal dehydration are discussed based on the test results,which has guiding significance for thermal-chemical dehydration of thick oil with low temperature and high efficiency.
作者
薛浩浩
何燕
陈鲁
XUE Haohao;XUE Haohao;CHEN Lu(College of Electromechanical Engineering,Qingdao University of Science&Technology,Qingdao 266061,China;Shengli Oil Field,Dongying 257000,China)
出处
《能源化工》
2018年第1期67-71,共5页
Energy Chemical Industry
关键词
稠油
掺稀比
乳化
黏温关系
脱水工艺
thick oil
volume ratio of thin oil to thick oil
emulsification
viscosity and temperature relationship
dehydration process
