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Increasing the Quality of Furnace Residual Fuel Oils. Extraction Treatment with N-methylpyrrolidone

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Chemistry and Technology of Fuels and Oils Aims and scope

Abstract

Atmospheric resid was treated with N-methylpyrrolidone in the presence of the undecane fraction at mass ratios to the feedstock of 3:1 and 0.5:1 with preliminary light deasphalting with and without pentane. As a result, the sulfur content in the atmospheric resid decreases by four times and the carbon residue decreases by two times. N-Methylpyrrolidone forms an azeotrope with undecane with a boiling point of 179°C, i.e., 25° lower than for the extracting agent. This allows decreasing the degree of its decomposition in regeneration and corrosion of the equipment.

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Authors and Affiliations

  1. St. Petersburg State Institute of Technology, St. Petersburg, Russia

    A. A. Gaile, A. V. Kostenko, G. D. Zalischevskii, L. V. Semenov & E. A. Kaifadzhyan

  2. KINEF LLC, Russia

    A. A. Gaile

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  1. A. A. Gaile
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  2. A. V. Kostenko
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  3. G. D. Zalischevskii
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  4. L. V. Semenov
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  5. E. A. Kaifadzhyan
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__________

Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 4, pp. 3 – 9, July – August, 2005.

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Gaile, A.A., Kostenko, A.V., Zalischevskii, G.D. et al. Increasing the Quality of Furnace Residual Fuel Oils. Extraction Treatment with N-methylpyrrolidone. Chem Technol Fuels Oils 41, 249–259 (2005). https://doi.org/10.1007/s10553-005-0059-7

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