Adsorption behavior, spreading and thermal stability of anionic-nonionic surfactants with different ionic headgroup

Liu, Xiaochen; Zhao, Yongxiang; Li, Qiuxiao; Jiao, Tiliu; Niu, Jinping

doi:10.1016/j.molliq.2016.04.030

Cited by 50 publications

(7 citation statements)

References 26 publications

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“…This has been proposed as the mechanism of stabilization of lamellar and rod phases of mixtures between charged surfactants and long‐chain alcohols 56–59 . Mixtures of alcohol and charged surfactants were found to stabilize micellar aggregates, reduce CMC and favor the migration of surfactant molecules to the interface 55,60,61 . The observed reduction of the IFT in alcohol surfactant mixtures is a complex function of direct molecular interactions at the interface, interface stabilization, concentration, and the alcohol intrinsic amphiphilic behavior.…”

Section: Resultsmentioning

confidence: 94%

Hyperbranched polyglycerols derivatives as cetyltrimethylammonium bromide nanocarriers on enhanced oil recovery processes

Ferreira

Silva

Francisco

et al. 2021

J of Applied Polymer Sci

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In this work, the efficiency of partially hydrophobized hyperbranched polyglycerols (HPG11 and HPG12) as cetyltrimethylammonium bromide (CTAB) carriers was evaluated to prevent surfactant losses by adsorption on reservoir rocks surface during enhanced oil recovery (EOR) processes. Interactions between surfactant and polymers were studied by conductivity, zeta potential, and particle size measurements showing that complexes were formed between the components. The ability of PG, HPG11, HPG12 and those complexes to reduce the interfacial tension (IFT) was verified and one of the complexes was able to reduce the IFT to values under 1.0 mN/m, suggesting the occurrence of a synergy between the components. Molecular dynamics simulations indicated the preferential sites of interaction between surfactants and HPGs. HPG11:CTAB and HPG12:CTAB complexes' ability to permeate an unconsolidated porous medium and deliver the surfactant at the water–oil interface, increasing oil production, was evaluated through transport and oil displacement tests, and the results showed that the HPG12:CTAB complex led to almost 90% of oil recovery.

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Section: Resultsmentioning

confidence: 94%

Hyperbranched polyglycerols derivatives as cetyltrimethylammonium bromide nanocarriers on enhanced oil recovery processes

Ferreira

Silva

Francisco

et al. 2021

J of Applied Polymer Sci

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“…Hence, more surfactants tend to transfer to the oil/water interface or into the oil phase. As a result, the concentration of the surfactants at the interface increases and IFT decreases …”

Section: Resultsmentioning

confidence: 99%

“…As a result, the concentration of the surfactants at the interface increases and IFT decreases. 48 Dynamic IFT of three non-ionic surfactant systems at 75 °C and salinity of 1.96 g/L is depicted in Figure 6. It is clear that the IFT reaches equilibrium faster with increasing EO units.…”

Section: Energy and Fuelsmentioning

confidence: 99%

Experimental Investigation of Wettability Alteration of Oil-Wet Carbonates by a Non-ionic Surfactant

et al. 2018

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Wettability alteration toward a more water-wet state was found to be a promising approach for oil recovery improvement in oil-wet and naturally fractured carbonate reservoirs. This approach has been extensively studied in the literature using low-salinity/smart water and surfactant injection separately. However, application of surfactants in enhanced oil recovery is limited by their compatibility with the conditions of the reservoirs. In this study, polyethoxylated non-ionic surfactants with different ethylene oxide units were combined with low-salinity brine for a more efficient and cost-effective process. The compatibility of the surfactant solutions highly improved by reducing the salinity in the range of 200–2 g/L. Interfacial tension (IFT) measurements revealed that IFT decreased with increasing salinity. Contact angle measurements of calcite surfaces showed that wettability can be altered from a strong oil-wet state to a water-wet state after treatment with solutions of non-ionic surfactants over a wide range of salinities (∼2–110 g/L). ζ potential, Fourier transform infrared spectroscopy, and thermogravimetric analysis revealed that the non-ionic surfactant could partially displace carboxylate compounds from the surface and adsorb by forming a hydrogen bond with the hydroxyl group on the calcite surface. The formation of hydrogen bonds between ethoxy groups of the surfactant and hydroxyl or carboxylic groups on the solid surface can result in the replacement of organic compounds on the calcite surface. The organic compounds could form a new layer on the layer of adsorbed surfactant molecules via hydrophobic interactions. In addition, adsorption of the hydrophobic part of the non-ionic surfactant on the hydrophobic calcite surface and the formation of a surfactant double layer could partially contribute to the wettability alteration process.

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“…In order to adapt to the actual complex conditions of oil reservoirs, mixed surfactants have been recently considered in field operations due to their superior stability and physicochemical properties, e.g., mixed cationic/anionic surfactants [32,33], mixed ionic/nonionic surfactants [10,[34][35][36], zwitterionic surfactants [37][38][39], and gemini surfactants [40,41]. Jia et al [32] examined the impacts of mixed cationic/anionic surfactants at oil-water interface.…”

Section: Introductionmentioning

confidence: 99%

Molecular insights into the effect of anionic-nonionic and cationic surfactant mixtures on interfacial properties of oil-water interface

Zhou

Jiang

Liu

et al. 2022

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Adsorption behavior, spreading and thermal stability of anionic-nonionic surfactants with different ionic headgroup

Cited by 50 publications

References 26 publications

Hyperbranched polyglycerols derivatives as cetyltrimethylammonium bromide nanocarriers on enhanced oil recovery processes

Hyperbranched polyglycerols derivatives as cetyltrimethylammonium bromide nanocarriers on enhanced oil recovery processes

Experimental Investigation of Wettability Alteration of Oil-Wet Carbonates by a Non-ionic Surfactant

Molecular insights into the effect of anionic-nonionic and cationic surfactant mixtures on interfacial properties of oil-water interface

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