Variation of oxidation reactivity of straight run and H-Oil hydrocracked vacuum residual oils in the process of road asphalt production

Stratiev, Dicho; Shishkova, Ivelina; Dinkov, Rosen; Kirilov, K.; Yordanov, Dobromir; Nikolova, Radoslava; Veli, Anife; Tavlieva, Mariana P.; Vasilev, Svetlin; Suyunov, R.R.

doi:10.1080/14680629.2021.1893209

Cited by 6 publications

(11 citation statements)

References 44 publications

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“…It was found that the properties of the VTB also varied in a wide range, depending on the crude blend processing and on the H-Oil ® feed structure and operation severity [1]. This variation in VTB quality affects the processes of production of heavy fuel oil and road asphalt [5,6]. In an extreme case, the properties of the VTB were identical with those of asphaltenes produced from commercial deasphaltization units as reported by Naghizada et al [7].…”

Section: Introductionmentioning

confidence: 62%

“…The higher the density, and the aromatics content in the H-Oil ® diesel the lower its reactivity during hydrotreatment [12][13][14]. It was reported in [1] and in [5,6,15] that the properties of H-Oil ® VTB affect the process of production of road asphalt whose feed contains H-Oil ® VTB. Therefore, understanding the factors controlling H-Oil ® liquid products properties can allow optimization of the whole refinery performance.…”

Section: Resultsmentioning

confidence: 99%

“…rel. error = 0.47% (6) The relation of Kw of LVGO and Kw of HAGO is presented by the regression Equation (7).…”

Section: Resultsmentioning

confidence: 99%

“…Since the density correlates with the total aromatic structures content, and the Concarbon content correlates with the number of condensed aromatic rings [1] one may conclude that at the same content of aromatic structures the H-Oil ® VTB could contain a higher amount of condensed aromatic rings. As the H-Oil ® VTB having higher density, and higher Concarbon content possesses a higher softening point and it is more brittle undercutting of HVGO in the vacuum distillation column has been applied to decrease softening point and Fraas breaking point, and increase penetration to use this material as a feed for production of road asphalt [1,6]. In this study instead of undercutting H-Oil ® HVGO we explored the feasibility to improve softening point of the harder H-Oil ® VTB samples by blending them with H-Oil ® .…”

Section: Resultsmentioning

confidence: 99%

“…The VTB, is blended with cutter stocks (FCC cycle oils) to produce heavy fuel oil and it is also used as a feed component for production of road asphalt [5,6]. It was found that the properties of the VTB also varied in a wide range, depending on the crude blend processing and on the H-Oil ® feed structure and operation severity [1].…”

Section: Introductionmentioning

confidence: 99%

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Crude Slate, FCC Slurry Oil, Recycle, and Operating Conditions Effects on H-Oil® Product Quality

et al. 2021

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This paper evaluates the influence of crude oil (vacuum residue) properties, the processing of fluid catalytic cracking slurry oil, and recycle of hydrocracked vacuum residue diluted with fluid catalytic cracking heavy cycle oil, and the operating conditions of the H-Oil vacuum residue hydrocracking on the quality of the H-Oil liquid products. 36 cases of operation of a commercial H-Oil® ebullated bed hydrocracker were studied at different feed composition, and different operating conditions. Intercriteria analysis was employed to define the statistically meaningful relations between 135 parameters including operating conditions, feed and products characteristics. Correlations and regression equations which related the H-Oil® mixed feed quality and the operating conditions (reaction temperature, and reaction time (throughput)) to the liquid H-Oil® products quality were developed. The developed equations can be used to find the optimal performance of the whole refinery considering that the H-Oil liquid products are part of the feed for the units: fluid catalytic cracking, hydrotreating, road pavement bitumen, and blending.

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Section: Introductionmentioning

confidence: 62%

Section: Resultsmentioning

confidence: 99%

“…rel. error = 0.47% (6) The relation of Kw of LVGO and Kw of HAGO is presented by the regression Equation (7).…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Crude Slate, FCC Slurry Oil, Recycle, and Operating Conditions Effects on H-Oil® Product Quality

et al. 2021

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Novel correlations for prediction of SARA contents of vacuum residues

Samie

Mortaheb

2021

Fuel

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Evaluation of High-Viscosity Residual Fractions by Hot Filtration

Schlehöfer,

Vráblík,

Chrudimská

et al. 2023

Energy Fuels

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The high-viscosity residual fractions obtained during the secondary processing of crude oil are widely used as components in the production of marine fuels. Because of the high viscosity of these residual fractions, they cannot be used as marine fuel in accordance with the ISO 8217 standard (which monitors the quality parameters of residual marine fuels) without being mixed with a suitable low-viscosity cutter stock. Hot filtration, in accordance with the standardized procedures ISO 10307-1 and ISO 10307-2, is used to monitor the stability of the final marine fuels. However, this procedure cannot be applied to pure residual fractions because of their viscosity. We propose a procedure that does allow the application of hot filtration to determine the stability (in accordance with ISO 10307-1 and -2) of high-viscosity residual fractions. The proposed procedure involves mixing the residual fractions with a mixture of methyl esters in a suitable ratio. In this case, a 30% by weight addition of methyl esters to the tested high-viscosity residual fractions was determined to be the most suitable. The SV coefficient was employed to determine the optimal amount of the mixture of methyl ester (C ̌SN EN 14214) diluting component used to evaluate the high-viscosity residual fractions. The resulting values of TS (total sediment) and TSA (total sediment accelerated) parameters showed a high correlation, mainly for the most monitored parameter TSA, with dynamic viscosity at a temperature of 150 °C (R 2 TSA = 0.914) and C/H ratio (R 2 TSA = 0.929). Dependence of DV 150 and C/H ratio on asphaltene content representing n-heptane soluble material in residual fractions, as well as precursors of residual fraction instability, was also monitored. Determining the stability of pure residual fractions helps prevent possible technological problems arising during the storage and transport of either pure residual fractions or prepared marine fuels.

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Variation of oxidation reactivity of straight run and H-Oil hydrocracked vacuum residual oils in the process of road asphalt production

Cited by 6 publications

References 44 publications

Crude Slate, FCC Slurry Oil, Recycle, and Operating Conditions Effects on H-Oil® Product Quality

Crude Slate, FCC Slurry Oil, Recycle, and Operating Conditions Effects on H-Oil® Product Quality

Novel correlations for prediction of SARA contents of vacuum residues

Evaluation of High-Viscosity Residual Fractions by Hot Filtration

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