Equilibrium model for estimating micellar aggregation number from surface equation

2021 ◽  
Vol 528 ◽  
pp. 112844
Author(s):  
José L. López-Cervantes ◽  
Federico D. Sandoval-Ibarra ◽  
Jesús Gracia-Fadrique
Keyword(s):  
Equilibrium Model ◽  
Aggregation Number ◽  
Surface Equation ◽  
Micellar Aggregation Number

Discrete and Discontinuous Increase in the Micellar Aggregation Number: Effects of the Alkyl Chain Length on Platonic Micelles

Langmuir ◽  
2019 ◽  
Vol 35 (8) ◽  
pp. 3156-3161 ◽  
Author(s):  
Shota Fujii ◽  
Shimpei Yamada ◽  
Masataka Araki ◽  
Ji Ha Lee ◽  
Rintaro Takahashi ◽  
...  
Keyword(s):  
Chain Length ◽  
Alkyl Chain ◽  
Aggregation Number ◽  
Alkyl Chain Length ◽  
Micellar Aggregation Number

Micellar Aggregation Number

2016 ◽  
Author(s):  
Stanislaw Slomkowski ◽  
José V. Alemán ◽  
Robert G. Gilbert ◽  
Michael Hess ◽  
Kazuyuki Horie ◽  
...  
Keyword(s):  
Aggregation Number ◽  
Micellar Aggregation Number

scholarly journals Micellar Aggregation Behavior of Alkylaryl Sulfonate Surfactants for Enhanced Oil Recovery

Molecules ◽  
2019 ◽  
Vol 24 (23) ◽  
pp. 4325 ◽  
Author(s):  
Huoxin Luan ◽  
Lingyan Gong ◽  
Xinjian Yue ◽  
Xiaobin Nie ◽  
Quansheng Chen ◽  
...  
Keyword(s):  
Surface Tension ◽  
Aqueous Solutions ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Aggregation Number ◽  
Critical Micellar Concentration ◽  
Aggregation Behavior ◽  
Alkylaryl Sulfonate ◽  
Measuring Surface ◽  
Micellar Aggregation Number

Alkylaryl sulfonate is a typical family of surfactants used for chemically enhanced oil recovery (EOR). While it has been widely used in surfactant–polymer flooding at Karamay Oilfield (40 °C, salinity 14,000 mg/L), its aggregation behavior in aqueous solutions and the contribution of aggregation to EOR have not been investigated so far. In this study, raw naphthenic arylsulfonate (NAS) and its purified derivatives, alkylaryl monosulfonate (AMS) and alkylaryl disulfonate (ADS), were examined under simulated temperature and salinity environment of Karamay reservoirs for their micellar aggregation behavior through measuring surface tension, micellar size, and micellar aggregation number. It was found that all three alkylaryl sulfonate surfactants could significantly lower the surface tension of their aqueous solutions. Also, it has been noted that an elevation both in temperature and salinity reduced the surface tension and critical micellar concentration. The results promote understanding of the performance of NAS and screening surfactants in EOR.

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