The author innovatively proposed a block polyether demulsifier. p-Tert-butylphenol amine resin was synthesized by the reaction of p-tert-butylphenol with formaldehyde and tetraethylenepentamine, which was used as an initiator to polymerize with ethylene oxide (EO) and propylene oxide (PO) to generate four multi-branched block polyether demulsifiers with different EO ratios. The demulsifier was characterized by infrared spectroscopy, Physica MCR 301 rheometer, and cloud point method. Then, 4,4′-diphenylmethane diisocyanate (MDI) and (Epichlorohydrin) POCL were used in the polyether demulsifier for oil-soluble and water-soluble modification. Finally, it was found that the oil-soluble emulsifier 159C has excellent demulsification performance and the dehydration rate is 86.2%.
This is a preview of subscription content, access via your institution.
Buy single article
Instant access to the full article PDF.
Tax calculation will be finalised during checkout.
The datasets generated during and/or analyzed during the current study are available from the corresponding authors on reasonable request.
V.K. Rajak, I. Singh, A. Kumar, A. Kumar, A. Mandal, Optimization of separation of oil from oil-in-water emulsion by demulsification using different demulsifiers. Pet. Sci. Technol. 34(11–12), 1026–1032 (2016)
H. Teng, C. Chen, S. Yan, D. Ye, L. Zhang, Modified hyperbranched polyethylenimine as a novel demulsifier for oil-in-water emulsions. Energy Fuels 33(10), 117974–118033 (2019)
J. Kuang, Y. Mi, Z. Zhang, F. Ye, H. Yuan, W. Liu, X. Jiang, Y. Luo, A hyperbranched Poly(amido amine) demulsifier with trimethyl citrate as initial cores and its demulsification performance at ambient temperature. J. Water Process Eng. 38, 101542–101563 (2020)
A.U. Aaubabkr, M.S. Ismail, H. Ahmed, H. Ahmed, A.S. Aliyu, A.A. Abdelazim, Magnetic polyester bis-MPA dendron nanohybrid demulsifier can effectively break water-in-crude oil emulsions. J. Mater. Res. Technol. 9(6), 13411–13424 (2020)
S. Fang, B. Chen, T. Chen, M. Duan, Y. Xiong, P. Shi, An innovative method to introduce magnetism into demulsifier. Chem. Eng. J. 314, 631–639 (2017)
S.R. Larter, I.M. Head, Oil sands and heavy oil: origin and exploitation. Elements 10, 277–283 (2014)
V. Kedar, S.S. Bhagwat, Effect of polar head surfactants on the demulsification of crude oil. Pet. Sci. Technol. 36(2), 91–98 (2018)
Z. Li, S. Yin, G. Tan, S. Zhao, Z. Shi, B. Jing, L. Zhai, Y. Tan, Synthesis and properties of novel branched polyether as demulsifiers for polymer flooding. Colloid Polym. Sci 294(12), 1943–1958 (2016)
J. Wang, F.L. Hu, C.Q. Li, J. Li, Y. Yang, Synthesis of dendritic polyether surfactants for demulsification. Sep. Purif. Technol. 73(3), 349–354 (2010)
C.L. Yang, Electrochemical coagulation for oily water demulsification. Sep. Purif. Technol. 54, 388–395 (2007)
M. Duan, J. He, D.J. Li, X. Wang, B. Jing, Y. Xiong, S. Fang, Synthesis of a novel copolymer of block polyether macromonomer and diallyldimethylammonium chloride and its reverse demulsification performance. J. Pet. Sci. Eng. 175, 317–323 (2018)
Y.J. Xie, F. Yan, Z.J. Yan, J.M. Zhang, J.X. Li, Demulsification and interfacial properties of crosslinking phenol-amine resin block polyether demulsifiers. J. Dispersion Sci. Technol. 33, 1674–1681 (2012)
M. Nikkhah, T. Tohidian, M.R. Rahimpour, A. Jahanmiri, Efficient demulsification of water-in-oil emulsion by a novel nano-titania modified chemical demulsifier. Chem. Eng. Res. Des. 94, 164–172 (2015)
R.L. Lyu, T. Xia, C. Liang, C. Zhang, Z.Q. Li, L.C. Wang, Y. Wang, M. Wu, X.G. Luo, J.Y. Ma, C.W. Wang, C.L. Xu, MPEG grafted alkylated carboxymethyl chitosan as a high-efficiency demulsifier for O/W crude oil emulsions. Carbohydr. Polym. 241, 116309–116336 (2020)
X.F. Kailey, Influence of structural variations of demulsifiers on their performance. Ind. Eng. Chem. Res. 52(2), 785–793 (2013)
M. Wu, M.J. Zhai, X.B. Li, Adsorptive removal of oil drops from ASP flooding-produced water by polyether polysiloxane-grafted ZIF-8. Powder Technol. 378, 76–84 (2021)
X. Ma, X. Li, H. Zhang, S. Sui, A novel oxygen-containing demulsifier for efficient breaking of water-in-oil emulsions. Chem. Eng. J. 385, 123826–123864 (2019)
A.M. Alsabagh, M.E. Hassan, S. Desouky, Demulsification of W/O emulsion at petroleum field and reservoir conditions using some demulsifiers based on polyethylene and propylene oxides. Egypt. J. Pet. 25(4), 585–595 (2016)
F.L. Zhang, Q. Zhang, C. Han, J. Zhang, M. Yu, J. Liu, X. Wei, Effect of aging time and salt on the viscosity behaviour of a Gemini cationic surfactant. Phys. Chem. Liq. 55(4), 492–505 (2016)
D. Pradilla, J. Ramírez, F. Zanetti, O. Álvarez, Demulsifier performance and dehydration mechanisms in colombian heavy crude oil emulsions. Energy Fuels 31, 10369–10377 (2017)
M. Liu, X.L. Cao, Y.W. Zhu, Z.Y. Guo, L. Zhang, L. Zhang, S. Zhao, The effect of demulsifier on the stability of liquid droplets: A study of micro-force balance. J. Mol. Liq. 275, 157–162 (2019)
R. Zolfaghari, A. Fakhru’L-Razi, L.C. Abdullah, S.S.E.H. Elnashaie, A. Pendashteh, Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry. Sep. Purif. Technol. 170, 377–407 (2016)
B.S. Elisângela, D. Santos, D.R.M. Alves, M.S. Barbosa, R.C.L. Guimarães, B.M.S. Ferreira, R.A. Guarnieri, E. Franceschi, C. Dariva, A.F. Santos, M. Fortuny, Demulsification of heavy crude oil emulsions using ionic liquids. Energy Fuels. 27, 6311–6315 (2013)
The authors are grateful for the reviewers’ instructive suggestions and careful proofreading. This work was supported by the Natural Science Foundation of Shandong Province for Youth (Grant No. ZR2020QE111), the Doctoral Research Startup Project of Binzhou University (Grant No. 2019Y27), and the Postdoctoral Science Foundation of China (Grant No. 2020M681073).
Conflict of interest
The authors declare no conflict of interest.
About this article
Cite this article
Liu, C., Wei, L., Song, Y. et al. Synthesis, modification, and demulsification properties of multi-branched block polyether demulsifiers. MRS Communications (2021). https://doi.org/10.1557/s43579-021-00082-4