Criteria for structuring surfactants to maximize solubilization of oil and water

Barakat, Y.; Fortney, L.; Schechter, R.S.; Wade, William H.; Yiv, Seang; Graciaa, Alain

doi:10.1016/0021-9797(83)90177-7

Cited by 89 publications

(59 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The data in Figure 10 not only indicate that branching influences solubilization but also demonstrate another concept helpful in understanding microemulsion phase transition: the surfactant critical packing factor (68). The surfactant packing factor is expressed as v/(a*l), where v is the volume of the surfactant tail, a is the surfactant area per molecule, and l is the length of the surfactant hydrophobe.…”

Section: Solubilization Enhancement With a Single Amphiphilic Speciesmentioning

confidence: 96%

Enhancing solubilization in microemulsions—State of the art and current trends

Salager

Antón

Sabatini

et al. 2005

J Surfact & Detergents

223

198

View full text Add to dashboard Cite

Along a formulation scan, solubilization is maximal when a bicontinuous microemulsion is in equilibrium with both oil and water excess phases in a so-called Winsor III system. The logical way to enhance solubilization is to increase the interaction of the surfactant for both the oil and water phases, which can be easily attained by increasing the size of both the head and tail groups. However, this approach is limited by solubility constraints. Additional solubilization enhancement can be attained by introducing a molecule(s) that bridge the bulk phase and the adsorbed surfactant layer; this can be accomplished by using the so-called lipophilic and hydrophilic "linker effect" or by using block copolymer additives. In either case, the goal is to modify an extended zone in the oil and water domains close to their boundary. The intramolecular grafting of a linker group between the hydrophilic and lipophilic moieties in a surfactant results in a so-called "extended" surfactant structure, which produces enhanced solubilization, as does the surfactant/linker combination, but with the added benefit that the self-contained extended surfactant structure does not undergo selective partitioning. We conclude that an improvement in solubilization is directly related to the presence of a smooth, blurred, and expanded transition across the interfacial region from polar to apolar bulk phases.KEY WORDS: Extended surfactants, future trends, interfacial tension, lipophilic and hydrophilic linkers, microemulsions, solubilization, state of the art.

show abstract

Section: Solubilization Enhancement With a Single Amphiphilic Speciesmentioning

confidence: 96%

Enhancing solubilization in microemulsions—State of the art and current trends

Salager

Antón

Sabatini

et al. 2005

J Surfact & Detergents

223

198

View full text Add to dashboard Cite

show abstract

“…The co-surfactants used in microemulsions are alkanols, which are medium chain alcohols such as propanol, butanol, isoamyl alcohol, pentanol, hexanol and so forth (Barakat et al 1983). It is considered that these co-solvents have well-documented roles in microemulsion-based EOR applications (Pattarino et al 2000;Zhou and Rhue 2000).…”

Section: Co-surfactantsmentioning

confidence: 99%

Review of surfactant-assisted chemical enhanced oil recovery for carbonate reservoirs: challenges and future perspectives

et al. 2017

View full text Add to dashboard Cite

“…propan-2-ol, butanol, isoamyl alcohol etc.) in combination with a primary surfactant (Barakat et al 1983;Lalanne-Cassou et al 1983). Owing to the diphilic nature of surfactants, they distribute their head and tail parts to the corresponding polar and nonpolar solvents forming a monolayer film between them.…”

Section: Chemical Thermalmentioning

confidence: 99%

“…Alkanols (medium chain alcohols such as propanol, butanol, isoamyl alcohol, pentanol, hexanol, etc.) are generally used as cosurfactants for the preparation of microemulsions (Barakat et al 1983;Lalanne-Cassou et al 1983). The solubility of alkanol in water depends on the alcohol chain length.…”

Section: Introductionmentioning

confidence: 99%

Microemulsions: a novel approach to enhanced oil recovery: a review

Bera

Mandal

2014

J Petrol Explor Prod Technol

217

View full text Add to dashboard Cite

The trend of growing interest in alternative source of energy focuses on renewable products worldwide. However, the situation of petroleum industries in many countries needs much concern in improving the oil recovery technique. Chemical method, especially microemulsion flooding, plays an important role in enhanced oil recovery technique due to its ability to reduce interfacial tension between oil and water to a large extent as well as alter wettability of reservoir rocks. Surfactant-based chemical systems have been reported in many academic studies and their technological implementations are potential candidates in enhanced oil recovery activities. This paper reviews the role of different types of surfactants in enhanced oil recovery, structure of microemulsion, phase behavior of oil-brine-surfactant/cosurfactant systems with variation of different parameters such as salinity, temperature, pressure and physicochemical properties of microemulsions including solubilization capacity, interfacial tension, viscosity and density under reservoir conditions. The enhanced oil productivity by microemulsion flooding with different surfactant/cosurfactant systems has also been discussed in this paper. This review introduces a new opening in enhanced oil recovery by microemulsion flooding with some new aspects.

show abstract

Criteria for structuring surfactants to maximize solubilization of oil and water

Cited by 89 publications

References 11 publications

Enhancing solubilization in microemulsions—State of the art and current trends

Enhancing solubilization in microemulsions—State of the art and current trends

Review of surfactant-assisted chemical enhanced oil recovery for carbonate reservoirs: challenges and future perspectives

Microemulsions: a novel approach to enhanced oil recovery: a review

Contact Info

Product

Resources

About