{
  "abstract": "The development of sustainable CO2 capture technologies is critical in the present global drive to combat climate change. Hydrochar, obtained from hydrothermal carbonization (HTC), has demonstrated capabilities to adsorb CO2. This study evaluates activated hydrochar derived from areca sheath biomass for CO2 capture, associated with a life cycle assessment (LCA) study. Hydrochars were produced at 180 °C (AS-180), 200 °C (AS-200), and 220 °C (AS-220), followed by chemical activation using KOH at a KOH : hydrochar mass ratio of 3 : 1 and carbonization at 700 °C for 2 h to enhance microporosity. AS-200 achieved the highest surface area (144 m2 g−1), outperforming AS-180 and AS-220. Life cycle assessment of sorbent production reveals pronounced differences in climate change impacts, with AS-200 exhibiting the lowest carbon footprint (235 kg CO2-eq. per kg), followed by AS-220 (611 kg CO2-eq. per kg) and AS-180 (941 kg CO2-eq. per kg). Across all cases, chemical activation using KOH dominates emissions (about 67%), while fossil-derived thermal energy contributes about 16%, identifying upstream chemical manufacture and energy supply as primary hotspots. AS-200 achieves the highest measured CO2 adsorption capacity (2.5 mmol g−1). Under the baseline inventory with an assumed 1% sorbent makeup, its adsorption–regeneration LCA gives 2.55 kg CO2-eq. per kg CO2 processed, with fresh-sorbent production contributing substantially. This modelled climate burden is conditional on the replacement assumption; cyclic stability and the actual replacement requirement were not established. The baseline assessment identifies upstream sorbent manufacture as a priority for reducing emissions. Wastewater-treatment burdens are excluded from these baseline totals.",
  "abstract_shown": true,
  "affiliations": [
    "Manipal Institute of Technology, Manipal Academy of Higher Education Manipal India",
    "Faculty of Mechanical Engineering, VŠB – Technical University of Ostrava 70800 Czech Republic",
    "Department of Mechanical Engineering, St. Vincent Pallotti College of Engineering & Technology Nagpur Maharashtra India"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Sooraj Mohan"
    },
    {
      "affs": [
        0
      ],
      "name": "Ranjan Kumar Ghadai"
    },
    {
      "affs": [
        1
      ],
      "name": "Jana Petrů"
    },
    {
      "affs": [
        2
      ],
      "name": "Sushant S. Satputaley"
    },
    {
      "affs": [
        0
      ],
      "name": "P. Dinesha",
      "orcid": "0000-0002-2993-4611"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dh3htycmh442h.bib",
  "cited_by": 0,
  "doi": "10.1039/d6ra08488e",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13736797/",
  "id": "dh3htycmh442h",
  "issns": [
    "2046-2069"
  ],
  "landing_url": "https://doi.org/10.1039/d6ra08488e",
  "language": "en",
  "licence": "CC-BY-3.0",
  "licence_label": "CC BY 3.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/3.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Chemistry"
    ],
    [
      "openalex",
      "1506|Carbon Dioxide Capture Technologies"
    ]
  ],
  "openalex": "W7225305994",
  "pdf_url": "https://pubs.rsc.org/ra/article-pdf/doi/10.1039/d6ra08488e/15047957/d6ra08488e.pdf",
  "pmcid": "PMC13736797",
  "pmid": "42991316",
  "published": "2026-11-05",
  "publisher": "Royal Society of Chemistry",
  "ris": "https://research.draconitic.com/paper/dh3htycmh442h.ris",
  "sources": [
    {
      "first_seen": "2026-11-09T12:22:10Z",
      "native_id": "PMC13736797",
      "source": "pmc",
      "url": "https://doi.org/10.1039/d6ra08488e"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "heading:Chemistry",
      "subfield": "general"
    }
  ],
  "title": "Activated hydrochar from areca sheath biomass for CO2 capture: adsorption performance and life cycle challenges",
  "title_text": "Activated hydrochar from areca sheath biomass for CO2 capture: adsorption performance and life cycle challenges",
  "type": "peer-reviewed",
  "updated_at": "2026-11-09T12:22:10Z",
  "url": "https://research.draconitic.com/paper/dh3htycmh442h",
  "venue": "RSC Advances",
  "versions": []
}