2019
DOI: 10.1002/jsde.12360
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A Generalized Theoretical Model for the Relationship Between Critical Micelle Concentrations, Pressure, and Temperature for Surfactants

Abstract: Directional solvent extraction (DSE) has been gaining interest as a water treatment technology in recent years. DSE utilizes the process of micellization for the purposes of species separation between water and complex chemical systems. In this article, we develop a conformal geometric algebra‐based formulation that models surfactants, their solubilities, and critical micelle concentration (CMC), with relation to temperature and pressure. Molecules are represented as spatially distributed networks embedded in … Show more

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Cited by 8 publications
(3 citation statements)
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“…Additionally, flocculation occurs at SBNS concentrations above the CMC to impair the surface activity of the surfactant. , This reflects the imperativeness to determine the CMC during any surfactant flooding operation. The CMC of SBNSs depends on factors such as its molecular structure (e.g., hydrophobic chain length), solution salinity, pressure conditions, ionic composition, pH, temperature, and others …”
Section: Characterization Of Sbnssmentioning
confidence: 99%
See 1 more Smart Citation
“…Additionally, flocculation occurs at SBNS concentrations above the CMC to impair the surface activity of the surfactant. , This reflects the imperativeness to determine the CMC during any surfactant flooding operation. The CMC of SBNSs depends on factors such as its molecular structure (e.g., hydrophobic chain length), solution salinity, pressure conditions, ionic composition, pH, temperature, and others …”
Section: Characterization Of Sbnssmentioning
confidence: 99%
“…71,103 This reflects the imperativeness to determine the CMC during any surfactant flooding operation. The CMC of SBNSs depends on factors such as its molecular structure (e.g., hydrophobic chain length), 121 solution salinity, 122 pressure conditions, 123 ionic composition, pH, temperature, and others. 124 As a rule of thumb, the amount of surfactant concentration for injection in CEOR processes is assumed to be two or three times the CMC value.…”
Section: Critical Micelle Concentrationmentioning
confidence: 99%
“…The influence of the temperature on the CMC is of great importance in surfactant applications, such as washing and oil recovery. Specifically, the CMC is influenced by multiple parameters that are related to the surfactant itself, such as the structure of the tail and nature of the headgroup, and parameters related to the solute environment, such as pH, temperature, and the presence of electrolytes. The temperature is of particular interest since no model applicable to all surfactant classes is available in the literature. Many researchers have studied the temperature effect on the CMC, which in general has been described as complex and varies for each surfactant class. , For nonionics, authors have reported that CMC decreases monotonically as the temperature increases, but in general C i E j (poly­(ethylene oxide)) type of surfactants exhibit a minimum CMC at a temperature around 50 °C. ,,, …”
Section: Introductionmentioning
confidence: 99%