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Dearomatization of Diesel by Solvent Extraction: Influence of the Solvent Ratio and Temperature on Diesel Raffinate Properties

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Abstract

To comply with the stringent environmental regulations concerning the quality of fuels the production of ultra low sulfur fuels is obligatory. Consequently, the removal of aromatics from fuels has turned to be a serious issue. This is due to the fact that the presence of aromatics in fuel deters the ultra-low sulfur fuel production. Therefore the researcher’s interest has involved the dearomatization of fuels. As a result of the dearomatization, the quality of fuels improves tremendously. Here, solvent extraction was performed to dearomatize a feedstock sample with 20.1% aromatic and 166 ppm sulfur using acetonitrile. The extraction was performed at low temperature and ambient atmospheric pressure. The aromatic contents were determined via HPLC, while the ASTM methods were employed in other parameters determination. The results showed 72% minimum yield, 8.6% aromatic content, 58–64 cetane index, 73.2 ppm sulfur content, 5.4 viscosity, RI 1.4535, aniline point 82.15, specific gravity 0.824–0.812 with API 40.32–42.88 and flash point 70–78°C. The boiling range of the produced diesel fraction raffinate (172–373°C) that corresponds to C8–C24 cuts render it a potential candidate for other petrochemical applications.

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Authors and Affiliations

  1. Sudan University of Science and Technology, College of Science, Chemistry Department, Khartoum, Sudan

    Mugtaba M. Awad & E. A. Hassan

  2. Egypt EDEPCO, Ismailia, Egypt

    Y. M. El-Toukhee

  3. Al Imam Mohammad Ibn Saud Islamic University (IMSIU), College of Science, Department of Chemistry, Riyadh, 11623, Saudi Arabia

    Kamal K. Taha

  4. Al Imam Mohammad Ibn Saud Islamic University (IMSIU), College of Science, Department of Chemistry, P.O Box: 1660, Khartoum, Sudan

    Kamal K. Taha

Authors
  1. Mugtaba M. Awad
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  2. Y. M. El-Toukhee
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  3. E. A. Hassan
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  4. Kamal K. Taha
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Corresponding author

Correspondence to Mugtaba M. Awad.

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Published in Russian in Neftekhimiya, 2018, Vol. 58, No. 3.

The article is published in the original.

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Awad, M.M., El-Toukhee, Y.M., Hassan, E.A. et al. Dearomatization of Diesel by Solvent Extraction: Influence of the Solvent Ratio and Temperature on Diesel Raffinate Properties. Pet. Chem. 58, 444–450 (2018). https://doi.org/10.1134/S0965544118050031

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  • DOI: https://doi.org/10.1134/S0965544118050031

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