Journal of Petroleum Science and Technology

Journal of Petroleum Science and Technology

Enhancement of Efficiency of Water Removal from Bangestan Crude Oil by Silica Nanoparticles Using Imidazolium-based Ionic Liquids

Document Type : Research Paper

Authors
Ali Mehdizadeh 1
Fakhrotolou Masoumi 1
Amir Nasser Ahmadi 1
Marzieh Shekarriz 1
Shahriar Ghamami 2
1 Chemical, Polymeric, and Petrochemical Research Division, Faculty of Upstream Research and Development, Research Institute of Petroleum Industry IRPI, Tehran, Iran
2 Department of Chemistry, Imam Khomeini International University, Qazvin, Iran
10.22078/jpst.2023.4855.1813
Abstract
The effect of coating silica nanoparticles by several 1-alkyl-3-methylimidazolium hexafluorophosphate ionic liquids of [Rmim][PF6] general formula (R= C10, C12, and C14) on the water removal efficiency of silica nanoparticles from crude oil emulsions have been studied in this study. The ionic liquids have been prepared and characterized by comparing their 1HNMR and FT-IR spectra with those reported in the literature. In addition, the effects of factors including cation alkyl chain length and concentration of the ionic liquids prepared on the water separation efficiency of the demulsifier have also been investigated to determine the optimal values for the chain length and concentration of the ionic liquid. [C14mim][PF6] ionic liquid at a concentration of 1200 ppm was shown to be the most efficient ionic liquid among the ionic liquids studied. The water separation efficiency achieved using coated nanosilica under optimal conditions was 93.3%.
Keywords
Ionic Liquids
Demulsification
Crude Oil
Silica Nanoparticles
  1. Zolfaghari R, Fakhru'l-Razi A, Abdullah L C, Elnashaie S E H, Pendashteh A (2016) Demulsification techniques of water-in-oil and oil-in water emulsions in petroleum industry, Separation and Purification Technology, 170: 377-407. ##
  2. Abed S M, Abdurahman N H, Yunus R M, Abdulbari H A, Akbari S (2019) Oil emulsions and the different recent demulsification techniques in the petroleum industry - A review, Abed S M, Abdurahman N H, Yunus R M, Abdulbari H A, Akbari S (2019) Oil emulsions and the different recent demulsification techniques in the petroleum industry - A review IOP Conf. Series: Materials Science and Engineering 702. ##
  3. Kokal S, Crude Oil Emulsions: A State-Of-The-Art Review (2005), SPE Production and Facilities, 20, 1: 5-13. ##
  4. Mukherjee S, Kushnick A P (1989) Effect of demulsifiers on interfacial properties governing crude oil demulsification, in: Borchardt J K, Yen T F, Oilfield Chemistry Enhanced Recovery and Production Stimulation, American Institute of Chemical Engineers, New York. ##
  5. Xia L, Lu S, Cao G (2004) Stability and demulsification of emulsions stabilized by asphaltenes or resins, Journal of Colloid And Interface Science, 271: 504-506. ##
  6. Silva F L M C, Tavares F W, Cardoso J E M (2013) Thermodynamic Stability of water-in-oil emulsions, Brazilian Journal of Petroleum and Gas, 7, 1: 1-13. ##
  7. Razi M, Rahimpour M R, Jahanmiri A, Azad F (2011) Effect of a different formulation of demulsifiers on the efficiency of chemical demulsification of crude oil, Journal of Chemical and Engineering Data, 56: 2936–2945. ##
  8. Wang D, Yang D, Huang C, Huang Y, Yang D, Zhang H, Liu Q, Tang T, Gamal El-Din M, Kemppi T, Perdicakis B, Zeng H (2021) Stabilization mechanism and chemical demulsification of water-in-oil and oil-in-water emulsions in petroleum industry: A review, Fuel, 286: 119390. ##
  9. Zhou H, Dismuke K I, Lett N L, Penny G S (2012) Development of more environmentally friendly demulsifiers, SPE International Symposium and Exhibition on Formation Damage Control, Lafayette, Louisiana, USA. ##
  10. Welton T, (2018) Ionic liquids: a brief history, Biophysical Reviews, 10(3): 691-706. ##
  11. M D, Hamer C K (2017) Ionic liquids-the beginning of the end or the end of the beginning? A look at the life of ionic liquids through patent claims, Separation and purification Technology, 196, 3-9. ##
  12. Mehdizadeh A, Ahmadi A N, Fateminassab F (2013) Deep desulfurization of fuel diesels using alkyl sulfate and nitrate containing imidazolium as ionic liquids, Journal of Applied Chemical Research, 7, 1: 75-85. ##
  13. Garcia S., Larriba M, Garcia, J, Torrecilla J S, Rodriguez F (2011) Liquid-liquid extraction of toluene from heptane using 1-alkyl-3- methylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquids, Journal of Chemical and Engineering Data, 56:113-118. ##
  14. Ebrahimi M, Ahmadi A N, Safekordi A A, Fateminasab F, Mehdizadeh (2014) A Liquid-Liquid Equilibrium Data for {Heptane + Aromatic + 1 (2- Hydroxyethyl)-3-methylimidazolium Bis(trifluoromethylsulfonyl)imide ([hemim][NTf2])} Ternary Systems, Journal of Chemical & Engineering Data, 59: 197−204. ##
  15. Manshad A K, Rezaei M, Moradi S, Nowrouzi I, Mohammadi A H (2017) Wettability alteration and interfacial tension (IFT) reduction in enhanced oil recovery (EOR) process by ionic liquid flooding, Journal of Molecular Liquids, 248: 153-16. ##
  16. Hassanshahi N, Hu G, Li J (2020) Application of ionic liquids for chemical demulsification: a review, Molecules, 25: 4915-4943. ##
  17. Balsamo M., Erto A, Lancia A (2017) Chemical demulsification of model water-in-oil emulsions with low water content by means of ionic liquids, Brazilian Journal of Chemical Engineering, 34, 1: 273-282. ##
  18. Dalmazzone C, Noïk C (2001) Development of new "green" demulsifiers for oil production SPE International Symposium on Oilfield Chemistry, Houston, Texas.
  19. Katepalli H, Bose A, Hatton T A, Blankschtein D (2016) Destabilization of oil-in-water emulsions stabilized by nonionic surfactants: effect of particle hydrophilicity, Langmuir, 32, 41: 10694–10698.
  20. Nikkhah M, Tohidian T, Rahimpour M R, Jahanmiri A (2015) Efficient demulsification of water-in-oil emulsion by a novel nano-titania modified chemical demulsifier Chemical, Engineering Research and Design, 94: 164-172. ##
  21. Gandomkar G E, Bekhradinassab E, Sabbaghi S, Zerafat M M (2015) Improvement of chemical demulsifier performance using silica nanoparticles, Journal of Chemical and Molecular Engineering, 9, 4: 585-588. ##
  22. Fang-Hui W, Hong Z (2008) The application and research of dispersing in situ nano-SiO2 in polyether demulsifier TA103, Journal of Dispersion Science and Technology, 29, 8: 1081-4. ##
  23. Tunckol M, Durand J, Serp P (2012) Carbon nanomaterial-ionic liquid hybrids, Carbon, 50, 12: 4303-34. ##
  24. Hazrati N, Miran Beigi A A, Abdouss M (2018) Demulsification of water in crude oil emulsion using long chain imidazolium ionic liquids and optimization of parameters, Fuel, 229: 126–134. ##