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Sorption of gas condensate components by solid high-molecular-mass compounds of the gas-condensate field

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Abstract

The main mechanisms of sorption and desorption of saturated vapors of gas condensate fractions by asphaltenes and resins from the Orenburg oil-gas condensate field (OOGCF) was considered. These substances showed a high sorption capacity for mixtures of vaporized C5-C10 hydrocarbons in the temperature range of 50–70°C. Vapor sorption by asphaltenes is accompanied by their considerable swelling. The desorption of hydrocarbons from asphaltenes and resins proceeds much faster than their sorption. First, the lightest components (C6 and C7 hydrocarbons) are desorbed. Then, their relative amount in the desorbate gradually decreases while the amount of the heavier hydrocarbons octane, nonane, and decane increases. A possible mechanism of sorption of hydrocarbon vapors by asphaltenes is discussed.

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Authors and Affiliations

  1. Institute of Gas and Oil Problems, Russian Academy of Sciences, Moscow, Russia

    A. N. Dmitrievskii, N. A. Skibitskaya, L. A. Zekel’ & N. V. Krasnobaeva

  2. Institute for Fossil Fuel, Leninskii pr. 29, Moscow, 119991, Russia

    A. N. Dmitrievskii, N. A. Skibitskaya, L. A. Zekel’ & N. V. Krasnobaeva

Authors
  1. A. N. Dmitrievskii
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  2. N. A. Skibitskaya
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  3. L. A. Zekel’
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  4. N. V. Krasnobaeva
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Corresponding author

Correspondence to A. N. Dmitrievskii.

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Original Russian Text © A.N. Dmitrievskii, N.A. Skibitskaya, L.A. Zekel’, N.V. Krasnobaeva, 2007, published in Khimiya Tverdogo Topliva, 2007, No. 6, pp. 37–44.

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Dmitrievskii, A.N., Skibitskaya, N.A., Zekel’, L.A. et al. Sorption of gas condensate components by solid high-molecular-mass compounds of the gas-condensate field. Soil Fuel Chem. 41, 352–358 (2007). https://doi.org/10.3103/S0361521907060067

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  • DOI: https://doi.org/10.3103/S0361521907060067

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