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Specific Surface of Kuznetsk Basin Coal

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Abstract

The specific surface of coal particles is determined for 370 samples of Kuznetsk Basin coal with a wide range of metamorphic development. Low-temperature adsorption on a Sorbi N.4.1 instrument is employed, at liquid nitrogen temperature and various partial pressures. The specific surface is calculated by the Brunauer–Emmett–Teller (BET) method. In comparison with coal of poor and high metamorphic development, the specific surface is 0.23–3.90 m2/g higher for Zh, KZh, and K coal with vitrinite reflection coefficient 0.93–1.39% and yield of volatiles 20–36%.

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ACKNOWLEDGMENTS

We thank E.M. Tsurkan and E.S. Nepelina of the Institute of Coal, Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences for assistance in the granulometric, technical, and sorptional analysis of the coal; and also Z.R. Ismagilov, E.S. Mikhailova, A.N. Zaostrovskii, and N.A. Grabova of the Institute of Coal Chemistry and Materials Science, Federal Research Center of Coal and Coal Chemistry.

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  1. Institute of Coal, Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences, Kemerovo, Russia

    E. N. Kozyreva

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  1. E. N. Kozyreva
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Correspondence to E. N. Kozyreva.

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Translated by B. Gilbert

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Kozyreva, E.N. Specific Surface of Kuznetsk Basin Coal. Coke Chem. 65, 211–214 (2022). https://doi.org/10.3103/S1068364X22060060

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