大庆原油组分在界面膜的扩张流变性质
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摘要
利用悬挂滴的方法系统研究了大庆原油中四种活性组分在煤油-水间界面扩张流变性质,并深入探讨了振荡频率和质量分数的影响。结果表明,实验所用的大庆原油中的四种活性组分表现出较强的界面活性,其降低界面张力能力的顺序为:胶质>沥青质>芳香分>饱和分。随着振荡频率增大,这四种活性组分的扩张模量均增大,而相角均降低。此外,随质量分数增大,实验所用大庆原油中的沥青质的扩张模量线性增加,最大值高达50 mN/m,明显高于其它三种活性组分,也比一般原油中组分的扩张模量高。与此同时,这四种大庆原油活性组分的相角随质量分数增加虽然略有加大,但数值仍然较低,其界面吸附膜表现出较强的弹性行为。图12表1参26
The interfacial dilational rheological properties of the four components of Daqing crude oil at the kerosene-water system were investigated by means of oscillating drop method. The effects of the oscillating frequency and the bulk mass fraction were detected. The experimental results showed that all of the four crude oil components had interfacial active and the order of reducing interfacial tension was as follows,resins>asphaltenes>aromatics>saturates. The dilational modulus of all crude oil fractions increased with increasing frequency while phase angle decreased. With the increase of mass fraction,the dilational modulus of asphaltenes increased linearly,and the maximum dilational modulus could reach about 50 mN/m,which was not only higher than that of the others but also higher than the crude oil fractions in other regions. The phase angle of all crude oil fractions increased with increasing mass fraction and the values were lower,appearing strongly elastic nature.
The interfacial dilational rheological properties of the four components of Daqing crude oil at the kerosene-water system were investigated by means of oscillating drop method. The effects of the oscillating frequency and the bulk mass fraction were detected. The experimental results showed that all of the four crude oil components had interfacial active and the order of reducing interfacial tension was as follows,resins>asphaltenes>aromatics>saturates. The dilational modulus of all crude oil fractions increased with increasing frequency while phase angle decreased. With the increase of mass fraction,the dilational modulus of asphaltenes increased linearly,and the maximum dilational modulus could reach about 50 mN/m,which was not only higher than that of the others but also higher than the crude oil fractions in other regions. The phase angle of all crude oil fractions increased with increasing mass fraction and the values were lower,appearing strongly elastic nature.
引文
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[20]SHARIPOVA A,AIDAROVA S,MUCIC N,et al.Dilational rheology of polymer/surfactant mixtures at water/hexane interface[J].Colloid Surf A Physicochem Eng Asp,2011,391(1-3):130-134.
[21]HU S Sh,ZHANG L,CAO X L,et al.Influence of crude oil components on interfacial dilational properties of hydrophobically modified polyacrylamide[J].Energy Fuel,2015,29(3):1564-1573.
[22]LUCASSEN J,VAN DEN TEMPEL M,Dynamic measurements of dilational properties of a liquid interface[J].Chem Eng Sci,1972,27(6):1283-1291.
[23]万芝力.大豆蛋白-甜菊糖苷相互作用及对界面主导食品体系的调控研究[D].广州:华南理工大学,2016.
[24]BOS M A,VAN VLIET T.Interfacial rheological properties of adsorbed protein layers and surfactants:A review[J].Adv Colloid Interface Sci,2001,91(3):437-471.
[25]张磊.驱油表面活性剂分子结构与界面扩张流变性能关系研究[D].北京:中国科学院研究生院(理化技术研究所),2008.
[26]郑玉飞.化学驱体系油水界面扩张流变性研究[D].青岛:中国石油大学(华东),2013.
[2]ALIMF,ALQAM M H,The role of asphaltenes,resins and other solids in the stabilization of water in oil emulsions and its effects on oil production in Saudi oil fields[J].Fuel,2000,79(11):1309-1316.
[3]RANE J P,PAUCHARD V,COUZIS A,et al.Interfacial rheology of asphaltenes at oil-water interfaces and interpretation of the equation of state[J].Langmuir,2013,29(15):4750-4759.
[4]DAN A,WUSTNECK R,KRAGEL J,et al.Adsorption and dilational rheology of mixed beta-casein/DoTAB layers formed by sequential and simultaneous adsorption at the water/hexane interface[J].Langmuir,2013,29(7):2233-2241.
[5]VERRUTO V J,LE R K,KILPATRICK P K,et al.Adsorption and molecular rearrangement of amphoteric species at oil-water interfaces[J].J Phys Chem B,2009,113(42):13788-13799.
[6]司友华,靳志强,丰杰,等.大庆原油含氮组分的界面扩张黏弹性质[J].石油学报(石油加工),2011,27(5):737-745.
[7]ALVAREZ G,POTEAU S,ARGILLIER J F,et al.Heavy oil-water interfacial properties and emulsion stability:influence of dilution[J].Energy Fuel,2009,23(1):294-299.
[8]严方,谢永杰.大庆原油四组分分析及界面性质研究[J].化学分析计量,2009,18(4):20-24.
[9]刘立伟,侯吉瑞,岳湘安.大庆原油中活性物质对界面张力的影响[J].油气地质与采收率,2011,18(2):58-61.
[10]孙刚,刘子威,林梅钦,等.Na2CO3溶液与大庆原油作用对油水界面性质及乳状液稳定性的影响[J].东北石油大学学报,2013,37(5):73-77.
[11]林梅钦,杨红生,乔爱军,等.大庆原油活性组分及相关界面性质[J].石油大学学报(自然科学版),2003,27(5):92-95.
[12]罗澜,赵濉,张路,等.大庆原油活性组分的分离、分析及界面活性[J].油田化学,2000,17(2):156-158.
[13]鹿守亮,田燕春,王明宏,等.原油组分对驱油体系界面性质影响的研究[J].大庆石油地质与开发,2005,24(6):82-83.
[14]尹志刚,李美蓉,蒲铭,等.郑王稠油四组分组成和油-水界面膜黏弹性的关系[J].石s油学报(石油加工),2014,30(3):536-541.
[15]HANNISDAL A,ORR R,SJOBLOM J,et al.Viscoelastic properties of crude oil components at oil-water interfaces.1.the effect of dilution[J].Disper Sci Technol,2007,28(1):81-93.
[16]王宜阳,张路,孙涛垒,等.不同结构破乳剂油水界面扩张黏弹性研究[J].物理化学学报,2003,19(4):297-301.
[17]方洪波,王磊,宗华,等.胜利原油各组分对界面膜扩张流变性的影响[J].石油学报(石油加工),2011,27(5):746-752.
[18]张磊,王晓春,宫清涛,等.空气/水界面2,5-二丙基-4-十一烷基苯磺酸钠的表面动态扩张流变性质[J].物理化学学报,2007,23(10):1652-1656.
[19]MAESTRO A,KOTSMAR C,JAVADI A,et al.Adsorption of beta-casein-surfactant mixed layers at the sir-water interface evaluated by interfacial rheology[J].J Phys Chem B,2012,116(16):4898-4907.
[20]SHARIPOVA A,AIDAROVA S,MUCIC N,et al.Dilational rheology of polymer/surfactant mixtures at water/hexane interface[J].Colloid Surf A Physicochem Eng Asp,2011,391(1-3):130-134.
[21]HU S Sh,ZHANG L,CAO X L,et al.Influence of crude oil components on interfacial dilational properties of hydrophobically modified polyacrylamide[J].Energy Fuel,2015,29(3):1564-1573.
[22]LUCASSEN J,VAN DEN TEMPEL M,Dynamic measurements of dilational properties of a liquid interface[J].Chem Eng Sci,1972,27(6):1283-1291.
[23]万芝力.大豆蛋白-甜菊糖苷相互作用及对界面主导食品体系的调控研究[D].广州:华南理工大学,2016.
[24]BOS M A,VAN VLIET T.Interfacial rheological properties of adsorbed protein layers and surfactants:A review[J].Adv Colloid Interface Sci,2001,91(3):437-471.
[25]张磊.驱油表面活性剂分子结构与界面扩张流变性能关系研究[D].北京:中国科学院研究生院(理化技术研究所),2008.
[26]郑玉飞.化学驱体系油水界面扩张流变性研究[D].青岛:中国石油大学(华东),2013.
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