{
  "abstract": "Methane emissions from postmining activities originate from gas dissipation during transport and storage. This study investigates the immediate desorption characteristics and evolution laws of postmining coal through long-term tests on coarse particles and isothermal tests on fine particles under varying parameters. Results show a two-stage desorption process: a rapid linear growth stage posthoisting but before transport and processing, followed by a gradual decline and stabilization. The desorption volume exhibits a two-stage trend with coal rank, fluctuating from low- to high-metamorphic bituminous coal and increasing linearly from high-metamorphic bituminous coal to anthracite. Elevated ambient temperatures and smaller particle sizes significantly accelerate desorption rates. Integrating the Borges and exponential empirical models, a multiparameter coupled mathematical desorption model was constructed incorporating time, vitrinite reflectance, temperature, and particle size. The model shows excellent fitting performance for raw coal from typical mines (R2 > 0.98). This model effectively solves the challenge of accurately estimating initial gas loss during postmining activities. These findings provide a solid theoretical and experimental foundation for the measurement and accounting of postmining methane emissions.",
  "abstract_shown": true,
  "affiliations": [
    "State Key Laboratory of Coal Mine Disaster Prevention and Control , ,",
    "Chongqing Research Institute Co. Ltd., China Coal Technology and Engineering Group , , ,"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Hong Ding"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Qingming Long"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1rdfdwm3nmf18.bib",
  "cited_by": 0,
  "doi": "10.1021/acsomega.6c09299",
  "fulltext_url": null,
  "id": "1rdfdwm3nmf18",
  "issns": [
    "2470-1343"
  ],
  "landing_url": "https://pubs.acs.org/acsodf/article/doi/10.1021/acsomega.6c09299/5466532/Characteristics-and-Physical-Environmental",
  "language": null,
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [],
  "openalex": null,
  "pdf_url": "https://pubs.acs.org/doi/pdf/10.1021/acsomega.6c09299",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-09",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/1rdfdwm3nmf18.ris",
  "sources": [
    {
      "first_seen": "2026-11-10T00:21:21Z",
      "native_id": "10.1021/acsomega.6c09299",
      "source": "crossref",
      "url": "https://pubs.acs.org/acsodf/article/doi/10.1021/acsomega.6c09299/5466532/Characteristics-and-Physical-Environmental"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "issn:2470-1343",
      "subfield": "general"
    }
  ],
  "title": "Characteristics and Physical–Environmental Coupling Evolution Model of Immediate On-Site Gas Desorption from Coal during Postmining Activities",
  "title_text": "Characteristics and Physical–Environmental Coupling Evolution Model of Immediate On-Site Gas Desorption from Coal during Postmining Activities",
  "type": "peer-reviewed",
  "updated_at": "2026-11-10T00:21:21Z",
  "url": "https://research.draconitic.com/paper/1rdfdwm3nmf18",
  "venue": "ACS Omega",
  "versions": []
}