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Effect of the Phase State of the Solvent on Solvent Deactivation of Tar by n-Pentane

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Chemistry and Technology of Fuels and Oils Aims and scope

A Correction to this article was published on 15 March 2019

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Fuel development for solvent deasphalting (SDA), by means of which it is possible to obtain high yields of deasphalted oil (DAO) with acceptable quality for subsequent refining in catalytic cracking processes and hydrocracking in particular, is nowadays becoming increasingly important. In this paper, an experimental study of the SDA of tar (vacuum residue) with n-pentane at various extraction temperatures and pressures was undertaken, and this made it possible to determine the effect of the phase state of the solvent on the yield, composition, and properties of the separation products,. It was shown that transfer of pentane from the liquid phase state to the region of a subcritical and then supercritical fluid (SCF) increases the solubility of the tar components and the yield of the DAO for fixed values of the solvent density. Despite some decrease in the quality of the DAO in the case of supercritical extraction at temperatures close to the critical temperature of the solvent (220°C), the phase state of the pentane has little effect on the metal content of the products, the carbon residue content of the DAO, and the softening point of the asphalt for the given yields.

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  • 20 May 2019

    The title of the article should read

    Effect of Solvent Phase State on Solvent Deasphalting of Vacuum Residue with <Emphasis Type="Italic">n</Emphasis>-Pentane

    The second author’s name should read

    A. V. Pripahaylo

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The work was conducted with financial support from the Ministry of Education and Science of the Russian Federation, contract No. 03.G25.31.0238 of April 28, 2017, in the realization of a complex project of creation of highly technological production “Development and Creation of Solvent Technology of Refining of Heavy Oil Feedstock”, NIOKTR, the results of which are presented in the publication, Moscow Physicotechnical Institute, which is the leading organ of NIOKTR, contract No. 03.G25.31.0238 of April 28, 2017.

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Authors and Affiliations

  1. Moscow Physicotechnical Institute (State University), Dolgoprudnyi, Russia

    R. N. Magomedov, A. V. Pripakhailo & T. A. Maryutina

Authors
  1. R. N. Magomedov
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  2. A. V. Pripakhailo
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  3. T. A. Maryutina
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Correspondence to A. V. Pripakhailo.

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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 6, pp. 32 – 39, November –December, 2018.

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Magomedov, R.N., Pripakhailo, A.V. & Maryutina, T.A. Effect of the Phase State of the Solvent on Solvent Deactivation of Tar by n-Pentane. Chem Technol Fuels Oils 54, 721–732 (2019). https://doi.org/10.1007/s10553-019-00979-w

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  • DOI: https://doi.org/10.1007/s10553-019-00979-w

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