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Determining the Wettability of Coal Surfaces

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Abstract—For Kuznetsk Basin coal of different metamorphic stages, the fundamental difference between determining the limiting wetting angle of a coal surface by means of a hanging bubble and a sitting droplet is determined. The influence of surface preparation (briquetting of powder, plane cleavage, or surface polishing after plane cleavage) on the limiting wetting angle is investigated. The methodological features of sample preparation that affect the determination of coal wettability are identified.

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Authors and Affiliations

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

    Yu. F. Patrakov, S. A. Semenova & Yu. A. Kharlampenkova

  2. Collective-Use Center, Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences, Kemerovo, Russia

    S. A. Sozinov

Authors
  1. Yu. F. Patrakov
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  2. S. A. Semenova
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  3. Yu. A. Kharlampenkova
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  4. S. A. Sozinov
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Corresponding authors

Correspondence to Yu. F. Patrakov, S. A. Semenova, Yu. A. Kharlampenkova or S. A. Sozinov.

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Translated by B. Gilbert

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Patrakov, Y.F., Semenova, S.A., Kharlampenkova, Y.A. et al. Determining the Wettability of Coal Surfaces. Coke Chem. 62, 545–551 (2019). https://doi.org/10.3103/S1068364X19120081

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  • DOI: https://doi.org/10.3103/S1068364X19120081

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