Eco-friendly surfactant to demulsification water in oil emulsion: synthesis, characterization and application

Saad, Mohammed A.; Abdurahman, Nour Hamid; Yunus, Rosli Mohd

doi:10.1016/j.cdc.2020.100582

Cited by 8 publications

(3 citation statements)

References 36 publications

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“…These findings are consistent with prior studies, which indicated that micellization is an entropy-driven process [44]. The negative values for ∆G°m at all temperatures indicate that surfactant selfassembly occurs spontaneously [24], [41]. The value of ∆G°m depends on the magnitude of the changes in ∆H°m and ∆S°m (see Equation 3).…”

Section: Micellization Properties At Different Temperaturessupporting

confidence: 91%

“…The specific functional groups and chemical bonds of the rhamnolipid mixture were further analyzed using an iS5 FTIR spectrometer (Thermo Scientific Nicolet, USA). About 2 mg of the rhamnolipid powder was compressed into a thin pellet and examined in the 4000−400 cm −1 region at a spectral resolution of 4 cm −1 [41]. The structure of the rhamnolipid was characterized using an NMR spectrometer (400 MHz Bruker Avance III, Switzerland).…”

Section: Physicochemical Characterization Of Rhamnolipid Biosurfactantsmentioning

confidence: 99%

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The Behavior, Stability Properties, and Potential Applications of Rhamnolipid Biosurfactants in Oil Degradation

Zainal Abidin,

Sakaria,

Azman

et al. 2023

AEJ

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Rhamnolipid biosurfactants are among the most investigated for various applications, owing not only to their much lower environmental impact compared to chemical surfactants but also because they have proven effective in reducing surface tension and critical micelle concentration (CMC). However, there is concern regarding their high cost. This work aims to determine important behavior and properties of rhamnolipids and verify their potential for oil degradation. They were characterized using FTIR, 1H NMR, and 13C NMR spectroscopy to determine the main functional groups and the chemical structure of rhamnolipids for oil degreasing. Then, the influence of thermodynamic properties on CMC stability was studied to establish the stability behavior. This investigation is essential as good oil degreasing products require low CMC values to minimize the amount used during the oil removal process, form micelles, and solubilize dirt and oil. The oil degradation ability of rhamnolipids in different concentrations was studied using an oil dispersion test and the method of oil removal from a glass surface. Overall, this investigation proves that the temperature of the solution and immersion time influenced the CMC and surface tension value for the rhamnolipids. The lowest CMC value was 35 mg/L at 55 °C after 48 h of stabilization. The minimum recommended amount of rhamnolipids for the oil degrease formulation was also found to be 0.1% w/v, which is very low. This study showed that the behavior and stability of rhamnolipids are suitable for oil degradation applications and can efficiently replace chemical surfactants in oil degradation products.

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Section: Micellization Properties At Different Temperaturessupporting

confidence: 91%

Section: Physicochemical Characterization Of Rhamnolipid Biosurfactantsmentioning

confidence: 99%

The Behavior, Stability Properties, and Potential Applications of Rhamnolipid Biosurfactants in Oil Degradation

Zainal Abidin,

Sakaria,

Azman

et al. 2023

AEJ

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“…The formation of a stable emulsion remains a significant challenge during the oil extraction process in the petroleum industry. While all types of crude oil contain water in the form of water-in-oil (W/O) or oil-in-water (O/W) emulsions, other types of emulsions may also form depending on the production conditions. , In the initial stages of crude oil production, the amount of water present in the oil is relatively low. However, over time, the water content increases along with the crude oil due to factors such as water condensation during high production rates, water flooding, and the use of enhanced oil recovery (EOR).…”

Section: Introductionmentioning

confidence: 99%

Application of Novel Biodegradable Demulsifier Synthesized from Helianthus annuus in Field Crude Oil Demulsification─Experimental and Modeling Approach through RSM

Dhandhi,

Bhardwaj,

Naiya

2023

Ind. Eng. Chem. Res.

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The present study dealt with the application of biodegradable demulsifier synthesized based on Helianthus annuus (sunflower oil). The synthesized demulsifier is characterized using Fourier-transform infrared, nuclear magnetic resonance, and thermogravimetric analysis. The demulsification process was designed, modeled, and optimized through the response surface methodology. Furthermore, the significance of the developed models and operating parameters was evaluated using analysis of variance. The results indicated that the proposed models were highly significant, with a p-value of <0.0001. The demulsification efficiency (DE) of 100% was achieved at the following optimal conditions: 185.2 ppm demulsifier concentration, 70 °C temperature, and 55.3 min settling time. The interfacial activity, particle size analysis, and viscosity of the emulsion were measured, and optical microscopic analysis was conducted to directly observe the demulsification process. The study also compared the DE of prepared and field emulsions. Moreover, the synthesized demulsifier is degraded in 14 days. This research provides a promising solution for the treatment of water-in-oil emulsions.

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A review of emulsion flows, their characterization and their modeling in pumps

Achour,

Specklin,

Asuaje

et al. 2024

Chemical Engineering Research and Design

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Eco-friendly surfactant to demulsification water in oil emulsion: synthesis, characterization and application

Cited by 8 publications

References 36 publications

The Behavior, Stability Properties, and Potential Applications of Rhamnolipid Biosurfactants in Oil Degradation

The Behavior, Stability Properties, and Potential Applications of Rhamnolipid Biosurfactants in Oil Degradation

Application of Novel Biodegradable Demulsifier Synthesized from Helianthus annuus in Field Crude Oil Demulsification─Experimental and Modeling Approach through RSM

A review of emulsion flows, their characterization and their modeling in pumps

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