摘要
对以大庆和吉林原油界面活性组分为乳化剂的模型乳状液的稳定性与油水界面压、界面膜的界面粘度、界面屈服值的关系进行了研究。结果表明，模型乳状液（油／水体积比７０／３０）的稳定性与油水界面压、界面粘度、界面屈服值的大小有关。油水界面压、界面粘度、界面屈服值越大，乳状液越稳定；在油水界面，由原油界面活性组分形成的界面膜具有较强的结构，油水界面压、界面粘度、界面屈服值可作为衡量界面膜结构强度的参数；蜡晶能改变界面膜的流变特性，增加界面膜的强度和乳状液的稳定性。
The stability of water in jet fuel emulsions stabilized by interfacially active fractions from Daqing,Jilin crude oils has been investigated.It has been shown that there exists a good correlation between interfacial pressure(π),interfacial viscosity(IFV),interfacial primary yield value(IFPYV)of the interfacial film between the water/oil phases and the stability of the emulsions(W/O volume ratio 30/70).For the indigenous surfactants,the larger the interfacial pressure,the higher the interfacial viscosity,the greater the interfacial primary yield value and the more stable the emulsions.There is a strongly structured interfacial film between the water and oil phases.The interfacial pressure,interfacial viscosity and interfacial primary yield value of the film can be the parameters for evaluating the strength of the film and the stability of the emulsions.Wax particles can contribute to the rheological properties of the film,and enhance the strength of the film and the stability of the emulsions.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
1998年第3期1-5,共5页
Acta Petrolei Sinica(Petroleum Processing Section)
关键词
原油乳状液
界面压
界面粘度
稳定性
crude oil emulsion,interfacial pressure,interfacial viscosity,interfacial yield value
