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February 26, 2026ProcessesOpen Access

Micro-Pore Structure and Fractal Heterogeneity of Deep Coal Seam

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Authors

ZZZheng ZhangShandong University of Science and TechnologyZWZhongyong WeiGeophysical SurveyTYTingting YinShandong University of Science and Technology

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Implication

This investigation finds that thermal maturity alters pore structure in coal seams, indicating implications for methane adsorption and energy security.

Key Points

  • To examine the impact of thermal maturity on the evolution of micropore structures in coal.
  • Analyzed medium-to-high rank coal samples from the Benxi Formation in the Ordos Basin.
  • Utilized CO2 adsorption techniques to study micropore structure.
  • Conducted fractal analysis to evaluate surface heterogeneity.
  • Thermal maturity decreases specific surface area and pore volume in coal.
  • New micropores form at higher coal ranks but do not fully offset the loss of pore volume.
  • Fractal analysis shows reduced surface heterogeneity and more complex micropore structures.

Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/699f95ba1bc9fecf3dab3c9bhttps://doi.org/10.3390/pr14050729
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Also Consider

Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Evaluation of recoverable potential of deep coalbed methane in the Linxing Block, Eastern Margin of the Ordos Basin2024 · 20 citations
  2. 2Influence of Microwave-Assisted Supercritical Carbon Dioxide Treatment on the Pore Structure of Low-Rank Coal2024 · 4 citations
  3. 3Study on key influencing factors of competitive adsorption of coalbed methane by carbon dioxide displacement2022 · 7 citations