Physico–chemical Aspects of Adsorption at Solid/Liquid Interfaces

Somasundaran, P.; Hanna, H.S.

doi:10.1016/b978-0-12-641750-0.50012-8

Cited by 28 publications

(5 citation statements)

References 41 publications

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“…As electrostatic interactions play a leading role in surfactant adsorption (Somasundaran and Hanna 1977), it is suggested in the literature that cationic surfactant adsorption is less compared to anionic surfactants (Ahmadall et al 1993). However, Ma et al (2013) reported that the adsorption of cationic surfactants might lead to significantly high levels when the rock contains other minerals as well.…”

Section: Surfactant Adsorption Process On Carbonates and Its Mitigatimentioning

confidence: 99%

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

et al. 2017

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Section: Surfactant Adsorption Process On Carbonates and Its Mitigatimentioning

confidence: 99%

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

et al. 2017

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“…This model is described by: rp HEMIMICELLE The hemimicelle adsorption mechanism consists of two steps. These are adsorption of surfactant monomers via hydrogen bonding (Somasundaran and Hanna, 1977;Clunie and Ingram, 1983), followed by hemimicelle formation due to hydrophobic interaction among surfactant molecules (Gaudin and Fuerstenau, 1955). This is summarized as (Zhu and Gu, 1989):…”

Section: Radial Transport Equation With Dispersion and Adsorptionmentioning

confidence: 99%

“…Adsorption of nonionic surfactants on mineral oxides is a physical process in which surfactant molecules are driven to the solid-liquid interface by the hydrophobic effect (Tanford, 1980) where adsorption occurs by hydrogen bonding between the hydroxyl groups on the solid surface and the ethylene oxide units in the surfactant molecule (Somasundaran and Hanna, 1977;Furlong and Aston, 1982;Clunie and Ingram, 1983;Partyka et al, 1984). When the surfactant concentration in the bulk solution is low, surfactant molecules exist as individual molecules (monomers) in the solution.…”

mentioning

confidence: 99%

Propagation of a nonionic surfactant in radial sandstone cores

Kwok¹,

Hayes²,

Nasr‐El‐Din³

1995

Can J Chem Eng

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The dynamic adsorption of a nonionic surfactant, Triton X‐100®, on Berea sandstone with radial flow under a variety of injection rates, salinities and pH is examined. Mathematical modelling of the experimental data shows that the most consistent results are obtained using a kinetic hemimicelle model. The aggregation number (hemimicelle size) is independent of flow rate and salinity, but increases with increasing pH. In all cases, the aggregation number is lower under dynamic conditions than under static conditions, which is attributed to the shear force at the surface. The rate constants for adsorption increase with increasing flow rate, which is attributed to a decrease in mass transfer resistance.

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“…However, many secondary mechanisms have been quoted to explain the S-shape of the adsorption isotherms on clays and the existence, in some cases, of an adsorption maximum: Van Der Waals interactions between hydrocarbon chains, steric exclusions among the adsorbed species, solvation or desolvation of adsorbate and adsorbent species, formation of complexes, competition between the surfactive ions and their counter ions, etc. (Somasundaran and Hanna 1977;Zundel 1982).…”

Section: Introductionmentioning

confidence: 96%

“…In clays, the two main mechanisms of adsorption appear to be (i) the electrostatic attraction between the charged surface of the mineral and the surfactive ions and (ii) the ion exchange between clay and the surfactant molecules (Hill et al 1977;Somasundaran and Hanna 1977). Indeed, under most natural conditions, the faces of clay particles are negatively charged owing to substitution of ions in the silica tetrahedron.…”

Section: Introductionmentioning

confidence: 98%

Effect of surfactants on the mechanical properties of a kaolinite in relation to the solid – liquid contact angles

Fleureau¹,

Wignyodarsono²,

Zerhouni³

1988

Can. Geotech. J.

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A laboratory test program was undertaken to assess the effects of various ionic surfactants on the mechanical and hydric properties of a kaolinite. The tests showed that surfactants, particularly the cationic species, significantly modified the properties of the unsaturated clay (water absorption rate, absorbed water quantity, suction, swelling, etc.); however, the behaviour of the saturated soil was hardly changed. These results were correlated with measurements of the wettability characteristics of thin plates of consolidated clay. An original method, based on the concept of unit work of dewetting, was used to measure the solid-liquid-gas contact angle of the porous and rugose substrate. In the case of the kaolinite mixed with the cationic surfactant, the contact angle reaches 90" (instead of the 49" for the reference system), corresponding to a significant decrease in the soil suction. Such a decrease can explain the results obtained during infiltration and swelling tests.Une Ctude expkrimentale a Ct C rCalisCe afin d'estimer l'effet de divers produits hydrophobants ioniques sur les propriCtCs mCcaniques et hydriques d'une kaolinite. Les essais ont montrk que les surfactants, notamment les espbces cationiques, modifiaient sensiblement les propriCtCs de l'argile non saturie (vitesse d'absorption d'eau, quantitt d'eau retenue, succion, gonflement, etc.), mais que le comportement du sol satur6 Ctait peu affectC. Ces rksultats ont Ct C corrClCs avec des mesures des caractCristiques de mouillage de lames minces d'argile consolidCe. Une mtthode originale, reposant sur le concept de travail unitaire de dCmouillage, a CtC utilisCe pour mesurer l'angle de raccordement solide-liquide-gaz des mattriaux poreux et rugueux. Dans le cas de la kaolinite mClangCe au surfactant cationique, cet angle atteint 90" (au lieu de 49" pour le matCriau non trait&) correspondant i une diminution importante de la succion du sol. Une telle diminution permet d'expliquer le r6le du surfactant dans les essais d'infiltration et de gonflement.

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Physico–chemical Aspects of Adsorption at Solid/Liquid Interfaces

Cited by 28 publications

References 41 publications

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

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

Propagation of a nonionic surfactant in radial sandstone cores

Effect of surfactants on the mechanical properties of a kaolinite in relation to the solid – liquid contact angles

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