Radiation-thermal processing of high-viscous oil from Karazhanbas field

Zaykina, R.F.; Zaykin, Yu.A.; Mamonova, T.B.; Nadirov, N. K.

doi:10.1016/s0969-806x(00)00343-1

Cited by 23 publications

(6 citation statements)

References 5 publications

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“…Earlier we observed the phenomenon of enhanced isomerization during RTC of highly viscous Karazhanbas oil (Zaykina et al, 2001) in irradiation modes characterized by low values of temperature and dose rate and attributed it to the effects of energy transfer from paraffin to aromatic component of the hydrocarbon mixture. Now this interpretation finds support in our radiation experiments on bitumen which are characterized by higher concentrations of heavy aromatics and, therefore, still more pronounced effects of enhanced isomerization.…”

Section: Resultsmentioning

confidence: 84%

“…In this study, approaches earlier developed and tested on heavy crude oil and oil residua (Zaykina et al, 2001;Nadirov et al, 1994) were applied to processing of still heavier and more viscous feedstock, such as bitumen from Shilikty and Mortuk fields (Western Kazakhstan). Density of the bitumen samples was in the range of 0.97-1.00 g/cm 3 , molecular mass is 400-500 g/mol, kinematic viscosity at 50 C is in the range 170-180 cSt, sulfur content is 1.6-1.8 mass%.…”

Section: Introductionmentioning

confidence: 99%

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Bitumen radiation processing

Zaykin

Zaykina

2004

Radiation Physics and Chemistry

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Section: Resultsmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Bitumen radiation processing

Zaykin

Zaykina

2004

Radiation Physics and Chemistry

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“…The study of thermo- and hydrodynamic processes occurring in multiphase, multicomponent media under the influence of electron irradiation is one of the most important trends in the petrochemical industry, also in the extraction and processing of hydrocarbon raw materials. The application of ionizing radiation by electrons to the hydrocarbon mixture is distinguished by energy efficiency and environmental safety, which was confirmed experimentally by Zaykina et al (2001) and Mirkin et al (2003).…”

Section: Introductionmentioning

confidence: 78%

Mathematical modeling of electron irradiation of oil

Kizbayev

Zhakebayev

Abdibekov

et al. 2018

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Purpose This paper aims to propose a mathematical model and numerical modeling to study the behavior of low conductive incompressible multicomponent hydrocarbon mixture in a channel under the influence of electron irradiation. In addition, it also aims to present additional mechanisms to study the radiation transfer and the separation of the mixture’s components. Design/methodology/approach The three-dimensional non-stationary Navier–Stokes equation is the basis for this model. The Adams–Bashforth scheme is used to solve the convective terms of the equation of motion using a fourth-order accuracy five-point elimination method, and the viscous terms are computed with the Crank–Nicolson method. The Poisson equation is solved with the matrix sweep method and the concentration and electron irradiation equations are solved with the Crank–Nicolson method too. Findings It shows high computational efficiency and good estimation quality. On the basis of numerical results of mathematical model, the effect of the separation of mixture to fractions with various physical characteristics was obtained. The obtained results contribute to the improvement of technologies for obtaining high-quality oil products through oil separation into light and heavy fractions. Mathematical model is approbated based on test problem, and has good agreement with the experimental data. Originality/value The constructed mathematical model makes developing a methodology for conducting experimental studies of this phenomenon possible.

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“…However, when dealing with radiationinduced reactions, it is extremely important to take into account the potential synergetic effects of different hydrocarbon species. Irradiation of highly viscous oils with sulfur, heavy paraffins, aromatics, and heavy residue shows that radiationinduced chemical reactions of hydrocarbons with a simple structure vary from mixtures of complex nature (Zaykina et al 2001;Zaykina et al 2002;Zaykin et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Utilization of Charged Particles as an Efficient Way to Improve Rheological Properties of Heavy Asphaltic Petroleum Fluids

et al. 2012

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High energy electron particles were utilized to improve the rheological properties of heavy asphaltic petroleum fluids and upgrade them into lighter, and more utilizable, fluids. Heavy oil reserves, as one of the most abundant sources of energy, have attracted considerable attention during the last decades. However, high viscosity of such fluids always poses problems during production and transportation operations. Complex hydrocarbon molecules in heavy petroleum fluids can be affordable sources of energy if we can find a way to convert them into components of simpler structure in a cost-efficient process. While high energy demand of conventional thermal and thermo-catalytic process casts doubts on the application of such methods, emerging electron beam upgrading technology appears to provide promising achievements as a novel hydrocarbon treatment process. Radiation thermal cracking was observed to reduce the viscosity of highly asphaltic petroleum samples more than the conventional thermal cracking method. Simulated distillation analysis showed higher concentrations of lighter components in radiolyzed samples, which indicated the intensified cracking as a result of electron irradiation. Stability of the products with time is one of the main concerns because samples with altering properties may cause difficulties after the upgrading process. The viscosity of thermally cracked samples showed a substantial increase with time, while aging investigations on radiation thermal cracking products demonstrated stable properties.

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Radiation-thermal processing of high-viscous oil from Karazhanbas field

Cited by 23 publications

References 5 publications

Bitumen radiation processing

Bitumen radiation processing

Mathematical modeling of electron irradiation of oil

Utilization of Charged Particles as an Efficient Way to Improve Rheological Properties of Heavy Asphaltic Petroleum Fluids

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