Irawan, Y., Juliana, I., Adilina, I.B., Alli, Y.F., 2017. Aqueous Stability Studies of Polyethylene Glycol and Oleic Acid-Based Anionic Surfactants for Application in Enhanced Oil Recovery through Dynamic Light Scattering. International Journal of Technology. Volume 8(8), pp.1414-1421
|Yan Irawan||- Research Center for Chemistry, LIPI
|Ika Juliana||Research Center for Chemistry, LIPI|
|Indri Badria Adilina||Research Center for Chemistry, LIPI|
|Yani Faozani Alli||Research and Development Center for Oil and Gas Technology-LEMIGAS|
The present study investigates the aqueous stability of polyethylene glycol and oleic acid- based anionic surfactants through the dynamic light scattering (DLS) and zeta potential methods, for application in enhanced oil recovery (EOR). Polyethylene glycol dioleate sulfonate (PDOS) surfactant solutions were prepared in concentrations of 0.05, 0.1, 0.3, 0.5, and 1 wt% in deionized water. Aqueous stability of PDOS was assessed by measuring the droplet size over five days, using nano particle analyzer HORIBA SZ-100 at 25oC. Results show that good aqueous stability of PDOS was achieved at concentrations of 0.1 to 1 wt%, but with the droplet size becoming unstable at the lowest concentration of 0.05 wt%. The polydispersity indices were classified into polydisperse distribution type recorded as 0.3 to 0.5 at concentrations of 0.05 and 0.1 wt% and 0.2 at concentrations of 0.3 to 1 wt%. The critical micelle concentration (CMC) of PDOS was 0.3% and the interfacial tension of PDOS surfactant above the CMC was around 10-3 dyn/cm. The zeta potential of PDOS surfactant without the addition of salt in concentrations of 0.05, 0.1, 0.3, 0.5, and 1 wt% was highly stable up to -96.8, -90.5, -89.6, -82.3, and -64.4 mV, respectively. With the addition of salt they were moderately stable at a concentration of 1 wt%. The conductivity increased with increasing concentration. The zeta potential of PDOS with the addition of salt was moderately stable in a concentration of 1%. Although PDOS with concentration of 0.05% showed a high value of zeta potential with the addition of salt, there is no guarantee that the PDOS surfactant solution will be stable for five days.
Aqueous stability; Dynamic light scattering; Oleic acid; Polyethylene glycol
Aqueous stability of PDOS surfactant for five days was observed in concentrations of 0.1 to 1 wt%, during which the droplet size became unstable from the third day at the lowest concentration (0.05 wt%). Polydispersity indices of PDOS at concentrations of 0.05 and 0.1% were 0.3 and 0.5, meanwhile at concentrations of 0.3 to 1 wt% polydispersity was measured as 0.2. The polydispersity index of PDOS classified it as being of a polydisperse distribution type. The CMC of PDOS was 0.3% and IFT of PDOS above the CMC was around 10-3 dyne/cm. Results of the zeta potential of PDOS without the addition of salt at concentrations of 0.05, 0.1, 0.3, 0.5, and 1% were highly stable, being recorded as -96.8; -90.5, -89.6, -82.3, and -64.4 mV, respectively, and conductivity increased with increasing concentration. The zeta potential of PDOS with addition of salt was moderately stable at a concentration of 1%. Although PDOS with concentration of 0.05% demonstrated a high value of zeta potential with the addition of salt, there is no guarantee that the PDOS surfactant solution would be stable for five days.
The authors thank Ir. Letty Brioletty M.T from PPPTMGB LEMIGAS as a partner in the application of this study of polymeric surfactants in EOR, and Dr. Eng Agus Haryono as the Director of the Research Center for Chemistry LIPI. The financial support received from DIPA is fully acknowledged.
Babu, K., Pal, N., Saxena, V.K., Mandal, A., 2016. Synthesis and Characterization of a New Polymeric Surfactant for Chemical Enhanced Oil Recovery. Korean Journal of Chemical Engineering, Volume 33(2), pp. 711–719
Birdi, K.S., 1997. Handbook of Surface and Colloid Chemistry. USA: CRC Press
Domínguez, A., Fernández, A., González, N., Iglesias, E., Montenegro, L., 1997. Determination of Critical Micelle Concentration of Some Surfactants by Three Techniques. Journal of Chemical Education, Volume 74(10), pp. 1227–1231
Fairhurst, D., 2013. An Overview of the Zeta Potential Part 3: Uses and Applications. Particle Sciences, Inc. American Pharmaceutical Review
Horiba Instrument Catalog, 2014. A Guidebook to Particle Size Analysis. Horiba Instrum. Cat., pp. 1–32
Irawan, Y., Juliana, I., 2015. Effect of Temperature on Manufacturing Process of Polyethylene Glycol Dioleate (PDO). The 3rd Bali International Seminar on Science and Technology (BISSTECH)
Irawan, Y., Juliana, I., Adilina, I.B., 2017. Synthesis and Characterization of Palm Oil and Polyethylene Glycol Based Polymeric Surfactants. The 4th Bali International Seminar on Science and Technology (BISSTECH) and The 1st International Joint Conference on Science and Technology (IJCST).
Kaszuba, M., Corbett, J., Watson, F.M., Jones, A., 2010. High-concentration Zeta Potential Measurements using Light-scattering Techniques. Philos Trans A Math. Phys. Eng. Sci., Volume 368, pp. 4439-4451
Malvern Application Note, 2006. Surfactant Micelle Characterization using Dynamic Light Scattering. The Journal of Physical Chemistry B, pp. 1–5
Malvern, 2011. Dynamic Light Scattering Common Terms Defined., pp. 1–6
Mandavi, R., Sar, S.K., Rathore, N., 2008. Critical Micelle Concentration of Surfactant, Mixed-Surfactant and Polymer by Different Method at Room Temperature and Its Importance. Oriental Journal of Chemistry, Volume 24(2), pp. 559–564
Nagy, R., Bartha, L., Vágó, Á., 2014. Study on Characteristics of Micelles Formed by Surfactants and Polymer Mixtures for Enhanced Oil Recovery. Chemical Engineering Transactions, Volume 36, pp. 217–222
Nakahara, Y., Kida, T., Nakatsuji, Y., Akashi, M., 2005. New Fluorescence Method for the Determination of the Critical Micelle Concentration by Photosensitive Monoazacryptand Derivatives. Langmuir, Volume 21(15), pp. 6688–6695
Nobbmann, U., 2014. Polydispersity – What Does It mean for DLS and Chromatography? www.Material-Talks.com, (23 October 2014)
Patel, P.R, Agrawal, Y.K. 2011. Nanosuspension: An Approach to Enhance Solubility of Drugs. Journal of Advance Pharmaceutical Technology & Research, Volume 2(2), pp. 81–87
Septiyanti, M., Fahmiati, S., Meliana, Y., 2016. Pengaruh Konsentrasi Sampel Terhadap Akurasi Pengukuran Diameter Partikel Nanoemulsi (Effect of Sample Concentration on Measurement of Nanoemulsion Particle Diameter). Annual Meeting on Testing and Quality, LIPI., pp. 121–127
Vert, M., Doi, Y., Hellwich, K.-H., Hess, M., Hodge, P., Kubisa, P., Rinaudo, M., Schué, F., 2012. Terminology for Biorelated Polymers and Applications (IUPAC Recommendations 2012). Pure and Applied Chemistry, Volume 84(2), pp. 377–410