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Adsorption dynamics over a wide range of breakthrough concentrations

5. Modeling of vapor-adsorption dynamics in stationary, microporous adsorbent beds and calculation of the fundamental adsorption kinetic characteristics

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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    Analysis of a proposed model of adsorption dynamics shows that the coefficient of internal mass recoil falls off monotonically with an increase in the adsorption. The kinetics of adsorption are determined by external mass transfer in the region of low relative concentrations, and by internal mass transfer in the region of high relative concentrations. The Biot number fixes the boundary between these two concentration regions.

  2. 2.

    An analytic solution obtained here makes it possible to give a rather accurate description of the experimental adsorption data over a wide interval of relative concentrations, and, at the same time, obtain values for such parameters as the coefficients of external mass recoil and internal diffusion, and the dynamic equilibrium activity of the adsorbent bed.

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Authors and Affiliations

  1. Lensoviet Leningrad Technological Institute, USSR

    E. A. Ustinov, N. S. Polyakov, K. M. Nikolaev & M. M. Dubinin

  2. Institute of Physical Chemistry, Academy of Sciences of the USSR, Moscow

    E. A. Ustinov, N. S. Polyakov, K. M. Nikolaev & M. M. Dubinin

Authors
  1. E. A. Ustinov
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  2. N. S. Polyakov
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  3. K. M. Nikolaev
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  4. M. M. Dubinin
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 49–55, January, 1981.

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Ustinov, E.A., Polyakov, N.S., Nikolaev, K.M. et al. Adsorption dynamics over a wide range of breakthrough concentrations. Russ Chem Bull 30, 35–41 (1981). https://doi.org/10.1007/BF00962249

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  • DOI: https://doi.org/10.1007/BF00962249

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