Radiation methods for upgrading and refining of feedstock for oil chemistry

Mirkin, G.; Zaykina, R.F.; Zaykin, Yu.A.

doi:10.1016/s0969-806x(03)00058-6

Cited by 16 publications

(12 citation statements)

References 3 publications

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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: 77%

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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Section: Introductionmentioning

confidence: 77%

Mathematical modeling of electron irradiation of oil

Kizbayev

Zhakebayev

Abdibekov

et al. 2018

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“…However, in view of these conditions, some authors have used irradiation for chain cracking reaction [5,6].…”

Section: Discussionmentioning

confidence: 99%

Electron Beam Application for Regeneration of Catalysts Used in Refinery Cracking Units

Kondo¹,

Duarte²,

Sato³

et al. 2016

JPSA

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Abstract:A catalyst is a substance that alters the rate of a reaction. The process of catalysis is essential to the modern day manufacturing industry, mainly in FCC (Fluid Catalytic Cracking) process units. However, long-term exploitation of oil and gas processing catalysts leads to formation of carbon-and sulfur-containing structures of coke and dense products on the catalyst surface. They block reactive catalyst sites and reduce the catalytic activity. The main advantage of radiation processing by EB (electron beam) and gamma rays is chain cracking reaction in crude oil. Otherwise, under exposure to ionize radiation, considerable structure modification of equilibrium silica-alumina catalyst from FCC process may occur, in addition to the removal of impurities. The conditions applied in the irradiation range (20-150 kGy) of gamma rays and EB were not sufficient to alter the structure of the catalyst, whether for removal of the contaminant nickel, a major contaminant of the FCC catalyst, either to rupture of the crystalline structure either for the future reutilization of chemical elements. ATR-FTIR (Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy and EDXRFS (Energy Dispersive X-Ray Fluorescence Spectrometry) analysis were used to characterize and evaluate effects of radiation processing on equilibrium catalysts purification. To evaluate and comprehend the reactive catalyst sites, SEM (Scanning Electron Microscopy) and particle size distribution analyses were carried out.

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“…Although little is known about radiation induced biomass transformation, the radiochemistry of hydrocarbons has been studied for decades (Lucchesi and Baeder et al 1960;Mirkin and Zaykina et al 2003;National Energy Technology Laboratory 2006). The motivation has been to achieve refinery processes that are less expensive and more energy efficient for refining heavy petroleum fractions.…”

Section: Biopetroleum Factorymentioning

confidence: 99%

Systems analysis and futuristic designs of advanced biofuel factory concepts.

Chianelli¹,

Leathers²,

Thoma³

et al. 2007

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The U.S. is addicted to petroleum-a dependency that periodically shocks the economy, compromises national security, and adversely affects the environment. If liquid fuels remain the main energy source for U.S. transportation for the foreseeable future, the system solution is the production of new liquid fuels that can directly displace diesel and gasoline. This study focuses on advanced concepts for biofuel factory production, describing three design concepts: biopetroleum, biodiesel, and higher alcohols. A general schematic is illustrated for each concept with technical description and analysis for each factory design. Looking beyond current biofuel pursuits by industry, this study explores unconventional feedstocks (e.g., extremophiles), out-offavor reaction processes (e.g., radiation-induced catalytic cracking), and production of new fuel sources traditionally deemed undesirable (e.g., fusel oils). These concepts lay the foundation and path for future basic science and applied engineering to displace petroleum as a transportation energy source for good. 4 ACKNOWLEDGMENTS

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Radiation methods for upgrading and refining of feedstock for oil chemistry

Cited by 16 publications

References 3 publications

Mathematical modeling of electron irradiation of oil

Mathematical modeling of electron irradiation of oil

Electron Beam Application for Regeneration of Catalysts Used in Refinery Cracking Units

Systems analysis and futuristic designs of advanced biofuel factory concepts.

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