Evaluation of the effectiveness of commercial demulsifiers based on polyoxyalkylated compounds in relation to oil and water emulsions of the Sarybulak oilfield
Abstract
Water and oil emulsion formation is a natural process that takes place during oil recovery and processing. Heavy oils of Kazakhstan form highly stable oil emulsions mostly stabilized by a high content of asphaltenes, resins, and other surface-active components. Oil-in-water emulsions initiate the corrosion of equipment and cause transportation issues. Dewatering of oil emulsions is economically reasonable and requires universal techniques which could be applied to any sort of oil. In this study, the chemical composition of crude oil from the Sarybulak oilfield was determined, and commercial demulsifiers of Basorol brand were applied to these water-in-oil emulsions. The natural stabilizers content (asphaltenes and resins) was determined and correlated with IR-spectrum data. Finally, the effectiveness of demulsifiers is compared and explained according to their structures. It has been found that the higher the relative solubility number of the demulsifier, the better water-in-oil emulsion separation efficiency and dewatering mechanism was assumed. Results of water separation showed that Basorol PE-10400 and PE-10500 are the most effective, with DE of 96% and 91%, respectively, for 30% (vol.) water-in-oil emulsion at 60°C during 1-hour treatment.
References
2 Zolfaghari R, Fakhru’l-Razi A, Abdullah LC, Elnashaie SSEH, Pendashteh A (2016) Sep Purif Technol 170:377-407. Crossref
3 Lim JS, Wong SF, Law MC, Samyudia Y, Dol SS (2015) J Appl Sci 15:167-172. Crossref
4 Ezzat AO, Atta AM, Al-Lohedan HA (2020) ACS Omega 5:9212-9223. Crossref
5 Umar AA, Saaid IBM, Sulaimon AA, Pilus RBM (2018) J Petrol Sci Eng 165:673-690. Crossref
6 Abdulredha MM, Hussain SA, Abdullah LC (2020) Arab J Chem 13:3403-3428. Crossref
7 Kang W, Yin X, Yang H, Zhao Y, Huang Z, Hou X, et al (2018) Colloid Surface A 545:197-204. Crossref
8 Ahmad MA, Samsuri S, Amran NA (2019) Methods for Enhancing Recovery of Heavy Crude Oil. In (Ed.), Processing of Heavy Crude Oils - Challenges and Opportunities. Intech Open. Crossref
9 Adilbekova A, Omarova K, Karaitova M (2016) Chem Bull Kaz Nat Univ 82(2):26-33. Crossref
10 Otarbaev NS, Kapustin VM, Nadirov KS, Bimbetova GZ, Zhantasov MK, Nadirov RK (2019) Indonesian Journal of Chemistry. 19:959-966. Crossref
11 BASF official web-page (2022) URL
12 Bai Y, Bai Q (2019) 16 - Wax and Asphaltenes, second edition. Subsea Engineering Handbook. Gulf Professional Publishing. P.435-453. Crossref
13 Sousa AM, Pereira MJ, Matos HA (2022) J Petrol Sci Eng 210:110041. Crossref
14 Atta AM, Abdullah MMS, Al-Lohedan HA, Ezzat AO (2018) J Mol Liq 252:311-320. Crossref
15 Hajivand P, Vaziri A (2015) Braz J Chem Eng 32:107-118. Crossref
16 Ramalho JBVS, Lechuga FC, Lucas EF (2010) Quim Nova 33(8):1664-1670. Crossref
17 Rachman DA, Pramadika H, Samsol S (2020) Journal of Earth Energy Science, Engineering, and Technology 5(1). Crossref
18 Lesaint C, Berg G, Lundgaard LE, Ese MG (2016) IEEE Transactions on Dielectrics and Electrical Insulation 23:1-6. Crossref
19 Saad MA, Abdurahman NH, Yunus RM (2020) Chemical Data Collections 30:100582. Crossref
20 Fingas M, Fieldhouse B, Mullin J (1999) Spill Science & Technology Bulletin 5(1):81-91. Crossref
21 Rogel E, Carbognani L (2003) Energ Fuel 17:378-386
22 Hao C, Zhao L, Yue X, Pang Y, Zhang J (2019) J Mol Liq 274:730-739. Crossref
23 Adilbekova А, Omarova K, Mussabekov К, Kairatova М, Karakulova А (2014) Demulsification of water-oil emulsions with the use of mixtures of oil-soluble demulsifiers. Proceedings of the 8th Beremzhanov Chemistry and Chemical Technology Congress. Ust-Kamenogorsk, Kazakhstan. October 9-10, 2014. P.153.
24 Farrokhi F, Jafari Nasr M R, Rahimpour M R, Arjmand M, Ali Vaziri S (2017) Sep Sci Technol 53:551-558. Crossref
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License (CC BY-NC-ND 4.0) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.