Abstract
The adsorption of methane, ethane, and propane on the microporous carbon adsorbents MPU-007 and FAS-3 was studied at temperatures of 303, 313, 323, and 333 K over a pressure range of 0.1–40, 0.001–4.5, and 0.001–0.9 MPa for methane, ethane, and propane, respectively. The structural parameters of the adsorbents (adsorption volume and effective pore size) were determined using the theory of volume filling of micropores. The adsorption isotherms were measured for the studied adsorption systems and were used for the calculation of isotherms of excess adsorption and those of total content. The adsorption isosteres were constructed and the initial and isostereic heats of adsorption were calculated taking into account the adsorption isotherms of total content. Ethane and propane are adsorbed with higher heats than methane, which indicates that the studied adsorbents would be promising in the designed systems of selective extraction of ethane and propane from the natural gas flow. The initial heats of adsorption are well consistent with the polarizability of molecules of saturated hydrocarbons and, therefore, the polarizabilities of these molecules and adsorbent atoms can be used for the calculation of heats of adsorption.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. Yu. Tsivadze, O. E. Aksyutin, A. G. Ishkov, M. K. Knyazeva, O. V. Solovtsova, I. E. Men’shchikov, A. A. Fomkin, A. V. Shkolin, E. V. Khozina, V. A. Grachev, Russ. Chem. Rev., 2019, 88, 925; DOI: https://doi.org/10.1070/RCR4873.
A. E. Grinchenko, E. E. Men’shchikova, I. E. Men’shchikov, A. V. Shkolin, A. A. Fomkin, Russ. Chem. Bull., 2020, 68, 2091; DOI: https://doi.org/10.1007/s11172-020-3004-3.
A. A. Fomkin, A. A. Pribylov, A. V. Shkolin, I. E. Men’shchikov, K. O. Murdmaa, A. L. Pulin, Russ. Chem. Bull., 2019, 67, 1838; DOI: https://doi.org/10.1007/s11172-019-2632-y.
V. I. Isaeva, S. A. Kulaishin, M. D. Vedenyakina, V. V. Tchernyshov, G. I. Kapustin, V. V. Vergun, L. M. Kustov, Russ. Chem. Bull., 2021, 69, 67; DOI: https://doi.org/10.1007/s11172-021-3058-x.
A. A. Pribylov, K. O. Murdmaa, O. V. Solovtsova, Russ. Chem. Bull., 2021, 69, 665; DOI: https://doi.org/10.1007/s11172-021-3134-2.
A. A. Pribylov, K. O. Murdmaa, Russ. Chem. Bull., 2022, 70, 240; DOI: https://doi.org/10.1007/s11172-022-3403-8.
V. B. Fenelonov, Poristyi uglerod [Porous Carbon], IK SO RAN, Novosibirsk, 1995, 518 pp. (in Russian).
N. F. Fedorov, G. K. Ivakhnyuk, D. N. Gavrilov, Uglerodnye adsorbenty i ikh primenenie v promyshlennosti [Carbon Adsorbents and Their Application in Industry], Nauka, Moscow, 1983, 324 pp. (in Russian).
M. M. Dubinin, Adsorbtsiya i poristost’ [Adsorption and Porosity], Izd. VAKhZ, Moscow, 1972, 127 pp. (in Russian).
N. V. Kel’tsev, Osnovy adsorbtsionnoi tekhniki [Foundations of Adsorption Technique], Khimiya, Moscow, 1976, 512 pp. (in Russian).
N. N. Avgul’, A. V. Kiselev, D. P. Poshkus, Adsorbtsiya gazov i parov na odnorodnykh poverkhnostyakh [Adsorption of Gases and Vapors on Homogeneous Surfaces], Khimiya, Moscow, 1975, 384 pp. (in Russian).
A. A. Pribylov, S. M. Kalashnikov, V. V. Serpinskii, Bull. Acad. Sci. USSR, Div. Chem. Sci., 1990, 39, 1105; DOI: https://doi.org/10.1007/BF00962364.
N. B. Vargaftik, Spravochnik po teplofizicheskim svoistvam gazov i zhidkostei [Manual on Thermophysical Properties of Gases and Liquids], Nauka, Moscow, 1972, 720 pp. (in Russian).
V. A. Bakaev, Dokl. Akad. Nauk SSSR, 1966, 167, 369 [V. A. Bakaev, Dokl. Acad. Sci. USSR (Engl. Transl.), 1966, 167].
B. P. Bering, E. G. Žukovskaja, B. Kh. Rakhmukov, V. V. Serpinskii, Bull. Acad. Sci. USSR, Div. Chem. Sci., 1968, 17, 27; DOI: https://doi.org/10.1007/BF00914631.
A. A. Pribylov, K. O. Murdmaa, Russ. Chem. Bull., 2018, 66, 1807; DOI: https://doi.org/10.1007/s11172-018-2293-2.
A. A. Lopatkin, Teoreticheskie osnovy fizicheskoi adsorbtsii [Theoretical Fundamentals of Physical Adsorption], Izd. Mosk. Univ., Moscow, 1983, 344 pp. (in Russian).
F. Z. London, Phys. Chem., 1930, B11, 222.
J. C. Slater, J. C. Kirkwood, Phys. Rev., 1931, 31, 682.
J. O. Hirschfelder, Ch. F. Curtiss, R. B. Bird, Molecular Theory of Gases and Liquids, University of Wisconsin, John Wiley and Sons, Inc., New York; Chapman and Hall, Lim., London.
H. L. Johnston, K. E. McCloskey, J. Phys. Chem., 1940, 40, 1083.
Landolt—Börstein, Physicalish-Chemische Tabellen, Springer, Berlin, 1936.
Funding
This work was carried out in terms of the state assignment No. 122011300053-8 “Surface Phenomena in Colloidal Dispersion Systems, Physicochemical Mechanics, and Adsorption and Chromatographic Processes.”
Author information
Authors and Affiliations
Corresponding author
Additional information
No human or animal subjects were used in this research.
The authors declare no competing interests.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1173–1178, June, 2022.
Rights and permissions
About this article
Cite this article
Pribylov, A.A., Murdmaa, K.O. Adsorption of n-alkanes by carbon adsorbents at sub- and supercritical temperatures. Russ Chem Bull 71, 1173–1178 (2022). https://doi.org/10.1007/s11172-022-3518-y
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11172-022-3518-y