Temperature Dependent Behavior of Oil Dispersion System in Bulk and on the Metal Surface

Vladimir Sigitov, Aleksey Shakhvorostov, Evgeniy Blagikh, Rymbek Тоrgaev, Sarkyt Kudaibergenov


This article focuses on the temperature dependent behavior of oil dispersion systems containing high amount of paraffins. In particular the properties of oils in bulk and during the contact with metal surface were evaluated by methods of rheoviscometry, thermal analysis, differential scanning calorimetry, gravimetry, polarization microscopy, gas chromatography and chemical analysis.

Analysis of rheological parameters of oil, morphology of paraffin crystals, and thermal properties at temperature interval between 0÷90 0С allowed to determine the transition temperature of oil dispersion system from the molecular to free-dispersal and bounded-dispersal states. It was established that the indicated parameters depend on oil composition, molecular-mass distribution of paraffins, curing temperature and cooling rate.

Contacting of high paraffinic oils with steel surface leads to formation of asphaltene-resin-paraffin deposition (ARPD). The quantity, structure, composition and adhesiveness of ARPD depends on oil composition and gradient of temperature between heated oil and cooled metal surface. In case of temperature gradient is more than 30 0С the solid and high adhesive depositions are formed. Their structure is enriched by long chain high-melting paraffins. In case of temperature gradient is less than 20 0С, amorphous and easy removable depositions are formed. Their structures are enriched by mechanical admixtures, water, resin, asphaltene and low-melting short chain paraffins.

Key words: High-paraffinic oil; Oil dispersion system; Asphaltene-resin-paraffin depositions; Wax appearance temperature; Heat treatment


High-paraffinic oil; Oil dispersion system; Asphaltene-resin-paraffin depositions; Wax appearance temperature; Heat treatment

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[1] Syunyaev, Z. I., Safieva, R. Z., & Syunyaev, R. Z. (1990). Oil dispersion systems (p. 226). Moscow: Chemistry.

[2] Tumanian, B. P. (2000). Scientific and applied aspects of oil dispersion system theory (p. 336). Moscow: Technics.

[3] Calemma, V., Rausa, R., & D’Antona, P. (1998). Characterization of asphaltenes molecular structure. Energy & Fuels, 12, 422-428.

[4] Strausz, O. P., Mojelsky, T. W., & Lown, E. M. (1999). Structural features of Boscan and Duri asphaltenes. Energy and Fuels, 13, 228-247.

[5] Syunyaev, R. Z., Balabin, R. M., & Akhatov, I. S. (2009) Adsorption of petroleum asphaltenes onto reservoir rock sands studied by near-infrared (NIR) spectroscopy. Energy & Fuels, 23, 1230-1236.

[6] Safieva, J. O., Likhatsky, V. V., & Filatov, V. M. (2010). Composition of asphalten solvate shell at precipitation onset conditionals and estimation of average aggregate sizes in model oils. Energy & Fuels, 24(4), 2266-2274.

[7] Mohamed Rahoma, S., Watson, L., & Ramos Antonio, C. S., (1999). Reversibility and inhibition of asphaltene precipitation in Brazilian crude oils. Petroleum Sci. and Technology, 17, 877-896.

[8] Elsharkawy, A. M., Al-Sahhaf, Т. А., & Fahim, M. A. (2000). Further investigation of the formation of water-in-crude oil emulsions in the Burgan oilfield effects of oil. Fuel, 79, 1047-1055.

[9] Kozhabekov, S. S., Sigitov, V. B., & Didukh, А. G. (2003). Research of rheological properties of the oil transported on the main pipeline in the presence of depressants. Oil Business (Neftyanoe khozyaistvo), 2, 82-84.

[10] Nadirov, N. К., Tugunov, P. I., & Brot, R. А. (1985). Pipeline transport of viscose oils. Ser: New oils of Kazakhstan and its using (p. 264). Alma-Аtа: Science.

[11] Mahmotov, Е. S., Аldyiarov, Т. К., & Sigitov, V. B. (2010). Susceptibility of oil to thermal and depressor treatment. Oil & Gas, 58, 76-86.

[12] Mahmotov, Е. S., Аldyiarov, Т. К., & Sigitov, V. B. (2010). Features of hydrocarbon content and rheological properties of paraffinic oils of Southern Torgay deposits. Oil & Gas, 58, 69-75.

[13] Iksanov, V. А., & Sahabutdinov, К. G. (1999). Rheological investigation of paraffinic oil at different temperatures. Colloid. J., 61, 776-779.

[14] Jiang, Z., Hutchinson, J. M., & Imrie, C. T. (2001). Measurement of the wax appearance temperatures of crude oils by temperature modulated differential scanning calorimetry. Fuel, 80, 376-371.

[15] Pedersen, K. S., & Ronningsen, H. P. (2000). Effect of precipitated wax on viscosity-a model for predicting non-newtonian viscosity of crude oils. Energy & Fuels, 14, 43-51.

[16] Kazakova, L. P. (1986). Solid hydrocarbons of oils (p. 176). Мoskow: Chemistry.

[17] Agayev, S. G., Gurov, Y. P., & Zemlyansky, E. O. (2004) Phase transitions and structurization in model systems of firm hydrocarbons and depressor additives. Oil Processing and Petrochemistry, 9, 37-40.

DOI: http://dx.doi.org/10.3968/5097


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