Kazakhstan journal for oil & gas industryKazakhstan journal for oil & gas industry2707-42262957-806XKMG Engineering8950410.54859/kjogi89504Research ArticleComparative tests of fly ash powder as solid demulsifiersMysakhanovM. A.<p>магистр ТПУ по специальности «физика»</p>mysahanov@gmail.comZhakypovA. S.<p>докторант PhD, МНС</p>szhakupovalibek@gmail.comBakhadurA. M.<p>докторант PhD, МНС</p>askar.bakhadur@gmail.comKhanN. V.<p>докторант PhD КазНУ, МНС</p>mysahanov@gmail.comErlanulyE.<p>докторант PhD, научный сотрудник</p>yerlanuly@physics.kzGabdullinM. T.<p>и.о. ректора, Председателя Правления, канд. физ.-мат. наук, докт. PhD по физике плазмы, профессор</p>m.gabdullin@kbtu.kzКазахский национальный университет им. Аль-ФарабиАО «Казахстанско-Британский технический университет»150620213284903011202130112021Copyright © 2021, Mysakhanov M.A., Zhakypov A.S., Bakhadur A.M., Khan N.V., Erlanuly E., Gabdullin M.T.2021<p>This work investigates the effectiveness of fly ash particles as a solid demulsifier for destabilizing an oil-water emulsion and effectively removing water. The size of the fraction in the used solid powder does not exceed 40 microns in diameter. The demulsifier consists mainly of hematite (Fe₂O₃) and corundum (Al₂O₃) phases. The introduction of fly ash into the oil emulsion leads to demulsification of water from oil. The dosage of the powder ranged from 0.1 to 1 g. An increase in the dosage of fly ash leads to a rapid discharge of water from the emulsion. The study identifies the demulsifying properties of fly ash powder. Also, upon redispersion of demulsified samples, no re-emulsion was observed, as a result of which, it can be assumed that fly ash powder can contribute to deasphalting of oil-water emulsion. Reuse of industrial waste is an important method for improving the ecological state of the country.</p>demulsificationfly ashoiloil-water emulsionreuse of wasteдеэмульгациякүлмұнайсу-эмульсиясықалдықтарды қайта пайдаланудеэмульгациязола уносанефтьводонефтяная эмульсияповторное использование отходов1.Позднышев Г.Н. Стабилизация и разрушение нефтяных эмульсий. – М., Недра, 1982, 221 с.2.Гани Х.Ф. Физико-химические факторы образования и разрушения водонефтяных эмульсий. Дисс. канд. техн. наук. – М., 1976, 319 с.3.Петров А.А., Позднышев Г.Н. Физико-химические основы процесса обезвоживания нефти и очистка сточных вод. – М., Недра, 1971.4.Нефть. Общие технические условия. – СТ РК 1347-2005 (ГОСТ Р 51858-2002, MOD).5.Ермаков С. А., Мордвинов А. А. О влиянии асфальтенов на устойчивость водонефтяных эмульсий. – Нефтегазовое дело, 2007, № 1, 9 с.6.Месторождения нефти и газа Казахстана. Справочник. Под. редакцией Абдулина А.А. – М., Недра, 1996.7.Ahmad A. Adewunmi, Abduljamiu O. Amao. Demulsification and breaking mechanism of variable quartz concentrates obtained from sand. – Journal of Petroleum Science and Engineering, 2020, v. 192/8.Ahmad A. Adewunmia, Muhammad Shahzad Kamala, Theis Ivan Solling. Palm oil fuel ash (POFA) as a demulsifier for crude oil emulsions: Performance and mechanism. – Journal of Petroleum Science and Engineering, 2019, v.183.9.Maryam Razi, Mohammad Reza Rahimpour, Abdolhossein Jahanmiri. Effect of a Different Formulation of Demulsifiers on the Efficiency of Chemical Demulsification of Heavy Crude Oil. – Journal of chemical and engineering data, 2011, v. 56, р. 2936-2945.