Effect of different acidic fractions in crude oil on dynamic interfacial tensions in surfactant/alkali/model oil systems

Zhang, Lu; Li, Luo; Zhao, Suoqi; Xu, Zhicheng; An, Jiachun; Yu, Jiahui

doi:10.1016/s0920-4105(03)00153-0

Cited by 77 publications

(53 citation statements)

References 23 publications

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“…This observation was reported by Touhami et al [11] by studying the dynamic IFT of acidified model oil/alkaline systems. Zhang et al [8] reported a similar trend in the variation of the dynamic IFT and attributed this phenomenon to the influence of the increased Na 2 CO 3 concentration on the in situ surfactant's diffusion. As the alkaline concentration increases, more Na ?…”

Section: /Oil Systemmentioning

confidence: 67%

“…(PO)8 SO 4 and SDS, respectively. Hence, in addition to the strong effect of Na 2 CO 3 on DIFT min , surfactant-surfactant interactions at the mixed interfacial film may also contribute to the overall synergism as reflected by the increase in synergism in the order iC 17 (EO)13 [ C[14][15] (PO) 8 SO 4 [ SDS.The stronger synergism observed with iC 17 (EO) 13 relative to that observed with C 14-15 (PO) 8 SO 4 can be attributed to the additional intramolecular ion-dipole attractive interaction between the sulfate group and the nearby propylene oxide group and to the possible carboxylate-sulfate repulsive interactions in Na 2 CO 3 /C 14-15 (PO) 8 SO 4 /oil system.…”

mentioning

confidence: 99%

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Surfactant (in situ)–Surfactant (Synthetic) Interaction in Na₂CO₃/Surfactant/Acidic Oil Systems for Enhanced Oil Recovery: Its Contribution to Dynamic Interfacial Tension Behavior

Hadji

Al-Rubkhi

Al-Maamari

et al. 2015

J Surfact & Detergents

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The effect of synthetic surfactant molecular structure on the dynamic interfacial tension (DIFT) behavior in Na 2 CO 3 /surfactant/crude oil was investigated. Three surfactants, a nonionic (iC 17 (EO) 13 ), an alcohol propoxy sulfate (C 14-15 (PO) 8 SO 4 ), and sodium dodecyl sulfate (SDS) were considered in this study. Sodium tripolyphosphate (STPP) was added to ensure complete compatibility between brine and Na 2 CO 3 . In Na 2 CO 3 / iC 17 (EO) 13 /oil and Na 2 CO 3 /C 14-15 (PO) 8 SO 4 /oil systems, a strong synergistic effect for lowering the dynamic interfacial tension was observed, in which the dynamic IFT are initially reduced to ultralow transient minima in the range 1.1 9 10 -3 -6.6 9 10 -3 mNm -1 followed by an increment to a practically similar equilibrium value of 0.22 mNm -1 independent of Na 2 CO 3 concentration (for iC 17 (EO) 13 ) and to decreasing equilibrium values with increasing alkali concentrations (for C 14-15 (PO) 8 SO 4 ). The observed difference in the equilibrium IFT for the two systems suggest that in both systems, the mixed interfacial film is efficient in reducing the dynamic interfacial tension to ultralow transient minima (*10 -3 mNm -1 ) but the mixed film soap-iC 17 (EO) 13 is much less efficient than the mixed film soap-C 14-15 (PO) 8 SO 4 in resisting soap diffusion from the interface to the bulk phases. In both systems, the synergism was attributed, in part, to the intermolecular and intramolecular ion-dipole interactions between the soap molecules and the synthetic surfactant as well as to some shielding effect of the electrostatic repulsion between the carboxylate groups by the nearby ethylene oxide (13 EO) and propylene oxide (8 PO) groups in the mixed interfacial monolayer. SDS surfactant showed a much lower synergism relative to iC 17 (EO) 13 and C 14-15 (PO) 8 SO 4 , probably due to the absence of ion-dipole interactions and shielding effect in the mixed interfacial layer at the oil-water interface.

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Section: /Oil Systemmentioning

confidence: 67%

mentioning

confidence: 99%

Surfactant (in situ)–Surfactant (Synthetic) Interaction in Na₂CO₃/Surfactant/Acidic Oil Systems for Enhanced Oil Recovery: Its Contribution to Dynamic Interfacial Tension Behavior

Hadji

Al-Rubkhi

Al-Maamari

et al. 2015

J Surfact & Detergents

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show abstract

“…According to our early studies, 28 the petroleum acids can be divided into two main types: one is fatty acid with lower molecular weight and the other is aromatic acid with condensed ring. The water soluble fatty acid soap has Page 9 of 37 A c c e p t e d M a n u s c r i p t 9 higher surface activity and is responsible for the ultralow IFT values and an obvious minimum.…”

Section: The Effect Of Organic Alkali On Dynamic Ifts Of Slps Solutiomentioning

confidence: 99%

Effect of organic alkali on interfacial tensions of surfactant solutions against crude oils

Yuan

Cheng

Wang

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…These applications are widely used in different processes such as: enhanced oil recovery [7,8], pharmaceutical industry [9] biological and biochemical processes [10,11]. While there have been many studies on air/water interface [12][13][14][15][16], the number of studies on surfactant adsorption at oil/water interface is limited.…”

Section: Introductionmentioning

confidence: 99%

Dynamic adsorption of cetyl trimethyl ammonium bromide at decane/water interface

Salamah

Phan

Pham

2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Effect of different acidic fractions in crude oil on dynamic interfacial tensions in surfactant/alkali/model oil systems

Cited by 77 publications

References 23 publications

Surfactant (in situ)–Surfactant (Synthetic) Interaction in Na₂CO₃/Surfactant/Acidic Oil Systems for Enhanced Oil Recovery: Its Contribution to Dynamic Interfacial Tension Behavior

Surfactant (in situ)–Surfactant (Synthetic) Interaction in Na₂CO₃/Surfactant/Acidic Oil Systems for Enhanced Oil Recovery: Its Contribution to Dynamic Interfacial Tension Behavior

Effect of organic alkali on interfacial tensions of surfactant solutions against crude oils

Dynamic adsorption of cetyl trimethyl ammonium bromide at decane/water interface

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Effect of different acidic fractions in crude oil on dynamic interfacial tensions in surfactant/alkali/model oil systems

Cited by 77 publications

References 23 publications

Surfactant (in situ)–Surfactant (Synthetic) Interaction in Na2CO3/Surfactant/Acidic Oil Systems for Enhanced Oil Recovery: Its Contribution to Dynamic Interfacial Tension Behavior

Surfactant (in situ)–Surfactant (Synthetic) Interaction in Na2CO3/Surfactant/Acidic Oil Systems for Enhanced Oil Recovery: Its Contribution to Dynamic Interfacial Tension Behavior

Effect of organic alkali on interfacial tensions of surfactant solutions against crude oils

Dynamic adsorption of cetyl trimethyl ammonium bromide at decane/water interface

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Product

Resources

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Surfactant (in situ)–Surfactant (Synthetic) Interaction in Na₂CO₃/Surfactant/Acidic Oil Systems for Enhanced Oil Recovery: Its Contribution to Dynamic Interfacial Tension Behavior

Surfactant (in situ)–Surfactant (Synthetic) Interaction in Na₂CO₃/Surfactant/Acidic Oil Systems for Enhanced Oil Recovery: Its Contribution to Dynamic Interfacial Tension Behavior