Abstract
A microporous carbon adsorbent MPU-007 with a wide pore size distribution (specific micropore volume W0 calculated within the framework of the theory of micropore volume filling is 1.44 cm3 g−1; first-mode micropore diameter X01 is 1.5 nm; second-mode micropore diameter X02 is 3.5 nm; specific surface area SBET is 2520 m2 g−1) was prepared by chemical activation of a mixture of corn dextrin, ethylene glycol, and phenol formaldehyde resin. Adsorption of ethane on this adsorbent was studied at pressures up to 4 MPa at T = 303, 313, 323, and 333 K. The maximum ethane adsorption value attained in the experiments was 25 mmol g−1 or 75 wt%. The adsorption isosteres plotted in the ln P–1/T coordinates using the data obtained can be well approximated by linear functions at constant adsorption values. The dependences of the differential molar isosteric heats of adsorption of ethane on MPU-007 on the amount adsorbed in the temperature range of 303–333 K were calculated. The heat of adsorption of ethane equal to 23 kJ mol−1 remained constant throughout the initial range of micropore fillings up to ∼7 mmol g−1 and then gradually decreased to 8 kJ mol−1 at an uptake of 24 mmol g−1 at 333 K. Such a pattern of the dependence of the heat of adsorption can be due to a wide pore size distribution and to the formation of associates in the adsorbate.
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A. A. Petrov, Kh. V. Balyan, A. T. Troshchenko, Organicheskaya khimiya: Uchebnik dlya vuzov [Organic Chemistry. A Textbook for Higher Schools], Ivan Fedorov, St. Petersburg, 2002, 624 pp. (in Russian).
V. A. Sokolov, M. A. Bestuzhev, T. V. Tikhomolova, Khimicheskiy sostav neftey i prirodnykh gazov v svyazi s ikh proiskhozhdeniem [Chemical Composition of Crude Oils and Natural Gases in Relation to Their Origin], Nedra, Moscow, 1972, 276 pp. (in Russian).
N. V. Kel’tsev, Osnovy adsorbtsionnoy tekhniki [Fundamentals of Adsorption Technology], Khimiya, Moscow, 1976, 512 pp. (in Russian).
R. W. Baker, Ind. Eng. Chem. Res., 2002, 41, 1393.
T. C. Merkel, Z. He, I. Pinnau, B. D. Freeman, P. Meakin, A. J. Hill, Macromolecules, 2003, 36, 6844.
Yu. Yampolskii, L. Starannikova, N. Belov, M. Bermeshev, M. Gringolts, E. Finkelshtein, J. Membr. Sci., 2014, 453, 532.
S. Chow, Macromolecules, 1984, 17, 2336.
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).
M. M. Dubinin, Adsorbtsiya i poristost’ [Adsorption and Porosity], Izdat. VAKhZ, Moscow, 1972, 127 pp. (in Russian).
I. E. Men’shchikov, A. A. Fomkin, A. V. Shkolin, V. Yu. Yakovlev, E. V. Hozina, Russ. Chem. Bull., 2018, 67, 1814.
A. Yu. Tsivadze, O. E. Aksyutin, A. G. Ishkov, I. E. Men’shchikov, A. A. Fomkin, A. V. Shkolin, E. V. Khozina, V. A. Grachev, Russ. Chem. Rev., 2018, 87, 950.
A. A. Fomkin, A. A. Pribylov, A. G. Tkachev, N. R. Memetov, A. V. Melezhik, A. E. Kucherova, I. N. Shubin, A. L. Pulin, A. V. Shkolin, I. E. Men’shchikov, S. A. Zhedulov, K. O. Murdmaa, S. D. Artamonova, Kolloid Zh. [Colloid J.], 2019, No. 5 (in Russian).
N. B. Vargaftik, Spravochnik po teplofizicheskim svoystvam gazov i zhidkostey [A Handbook of Thermophysical Properties of Gases and Liquids], Nauka, Moscow, 1972, 720 pp. (in Russian).
A. A. Pribylov, S. M. Kalashnikov, V. V. Serpinskii, Bull. Acad. Sci. USSR, Div. Chem. Sci., 1990, 39, 1105.
R. M. Barrer, R. Papadopoulos, Proc. R. Soc., London, 1972, A326, 315.
V. Yu. Yakovlev, A. A. Fomkin, Kolloid Zh. [Colloid J.], 2009, 71, 877 (in Russian).
A. A. Fomkin, Adsorption, 2005, 11, 425.
V. A. Bakaev, Bull. Acad. Sci. USSR, Div. Chem. Sci., 1971, 20, 2516.
A. V. Shkolin, A. A. Fomkin, Kolloid Zh. [Colloid J.], 2009, 71, 116 (in Russian).
A. A. Fomkin, V. V. Serpinskii, B. P. Bering, Bull. Acad. Sci. USSR, Div. Chem. Sci., 1975, 24, No. 9.
A. A. Fomkin, A. A. Pribylov, A. G. Tkachev, N. R. Memetov, A. V. Melezhik, A. E. Kucherova, I. N. Shubin, A. V. Shkolin, I. E. Men’shchikov, A. L. Pulin, S. A. Zhedulov, Fizikokhimiya Poverkhnosti I Zashchita Materialov [Protection of Metals and Physical Chemistry of Surfaces], 2019, Iss. 6 (in Russian).
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 1838–1842, October, 2019.
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Fomkin, A.A., Pribylov, A.A., Shkolin, A.V. et al. Ethane adsorption on microporous carbon adsorbent with a wide pore size distribution. Russ Chem Bull 68, 1838–1842 (2019). https://doi.org/10.1007/s11172-019-2632-y
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DOI: https://doi.org/10.1007/s11172-019-2632-y