Dilatational Elasticity Moduli of Water–Crude Oil Interfaces Using the Oscillating Pendant Drop

Aske, Narve; Orr, Robert; Sjöblom, Johan

doi:10.1081/dis-120015978

Cited by 71 publications

(67 citation statements)

References 28 publications

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“…We, therefore, compare the adsorbed amounts, for example, at r = 0.1 asphaltene-to-toluene mass ratio: The m Γ Ath-C7 = 6.0 mg/m 2 , m Γ Ath-C5 = 2.8 mg/m 2 , and m Γ LM-Ath-C7 = 0.8 mg/m 2 adsorbed amounts are in the same range as those published quite recently [33] by the oscillating pendant-drop method.…”

Section: Comparison Of the Resultsmentioning

confidence: 90%

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Adsorption isotherms of associating asphaltenes at oil/water interfaces based on the dependence of interfacial tension on solvent activity

Horváth‐Szabó

Masliyah

Elliott

et al. 2005

Journal of Colloid and Interface Science

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Section: Comparison Of the Resultsmentioning

confidence: 90%

“…(1) Γ can be calculated by plotting γ versus ln X. This approach has been used unanimously for the characterization of interfacial and bulk properties of different crude oil components [11,20,[26][27][28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Adsorption isotherms of associating asphaltenes at oil/water interfaces based on the dependence of interfacial tension on solvent activity

Horváth‐Szabó

Masliyah

Elliott

et al. 2005

Journal of Colloid and Interface Science

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“…The rheological properties of these interfaces have been found to be strongly dependent on the nature of solvent used for dilution, the oil concentration, the asphaltene and resin concentrations, the resin to asphaltene ratio, and so on [16][17][18]. Nevertheless, stable w/o emulsions have been generally found to exhibit high interfacial viscosity and/or elasticity modulus.…”

Section: Introductionmentioning

confidence: 96%

“…As the stability of w/o emulsions appeared clearly related to the presence of an interfacial network surrounding the water droplets [10,11], many rheological studies of water/asphaltedoil interfaces have been made to clarify the mechanisms involved [12][13][14][15][16][17]. The rheological properties of these interfaces have been found to be strongly dependent on the nature of solvent used for dilution, the oil concentration, the asphaltene and resin concentrations, the resin to asphaltene ratio, and so on [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Stability of water/crude oil emulsions based on interfacial dilatational rheology

Dicharry

Arla

Sinquin

et al. 2006

Journal of Colloid and Interface Science

191

164

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“…A change of wettability results in redispersion of the coalesced dispersed phase into larger droplets ( Basu 1993;Aske & Sjoblom, 2002). An appropriate fiber material can be chosen for a particular dispersion system to get high coalescence efficiency, provided that the collision between the collector and the dispersion takes place (Basu 1993).…”

Section: Figure 2 5 Steps In Coalescence (Kokal 2002)mentioning

confidence: 99%

Separation of water-in-heavy oil emulsions using porous particles in a coalescence column

Gong

Dong

et al. 2016

Separation and Purification Technology

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Separation of water from water-in-heavy-oil (W/O) emulsions has been a costly problem.Due to the high viscosity of heavy oil, increasing the temperature of the emulsion has been one of the most common methods of separating water from W/O emulsions. The other methods include adding demulsifiers and using coalescence media. For the treatment of water in oil emulsions, providing a strongly water-wet coalescing media is the key for the coalescence of water droplets when the oil is the continuous phase.Various pack materials and methods have been tested for coalescence media by many researchers with no success due to the fact that water-wet material packed in a coalescence column is not able to remain water-wet in a heavy oil environment.In this study the principle of capillarity and the mechanism of wetting film in porous media are applied in designing the coalescence media. Water-wet porous particles are column. Using the coalescing column reduced water content in the heavy oil by 38%, 89%, and 93%, compared to the water contents reached in the separation with demulsifier dosages of 50, 100, and 150ppm, respectively, without using the column. These results indicate that the effect of adding a coalescing column to water separation is significant, as compared to just using a demulsifier in gravity separation. More importantly, flow through the coalescing column could reduce the water content in the heavy oil to a very low level (<1.0%) and, at the same time, reduce the consumption of demulsifier.iv ACKNOWLEDGEMENTS

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Dilatational Elasticity Moduli of Water–Crude Oil Interfaces Using the Oscillating Pendant Drop

Cited by 71 publications

References 28 publications

Adsorption isotherms of associating asphaltenes at oil/water interfaces based on the dependence of interfacial tension on solvent activity

Adsorption isotherms of associating asphaltenes at oil/water interfaces based on the dependence of interfacial tension on solvent activity

Stability of water/crude oil emulsions based on interfacial dilatational rheology

Separation of water-in-heavy oil emulsions using porous particles in a coalescence column

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