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A Review on CO[sub.2] Sequestration via Mineralization of Coal Fly Ash

Energies (Basel), 2023-08, Vol.16 (17) [Peer Reviewed Journal]

COPYRIGHT 2023 MDPI AG ;ISSN: 1996-1073 ;EISSN: 1996-1073 ;DOI: 10.3390/en16176241

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  • Title:
    A Review on CO[sub.2] Sequestration via Mineralization of Coal Fly Ash
  • Author: Jiang, Long ; Cheng, Liang ; Zhang, Yuxuan ; Liu, Gaojun ; Sun, Jian
  • Subjects: Lime
  • Is Part Of: Energies (Basel), 2023-08, Vol.16 (17)
  • Description: Coal fly ashes (COFA) are readily available and reactive materials suitable for CO[sub.2] sequestration due to their substantial alkali components. Therefore, the onsite collaborative technology of COFA disposal and CO[sub.2] sequestration in coal-fired power plants appears to have potential. This work provides an overview of the state-of-the-art research studies in the literature on CO[sub.2] sequestration via the mineralization of COFA. The various CO[sub.2] sequestration routes of COFA are summarized, mainly including direct and indirect wet carbonation, the synthesis of porous CO[sub.2] adsorbents derived from COFA, and the development of COFA-derived inert supports for gas-solid adsorbents. The direct and indirect wet carbonation of COFA is the most concerned research technology route, which can obtain valued Ca-based by-products while achieving CO[sub.2] sequestration. Moreover, the Al and Si components rich in fly ash can be adapted to produce zeolite, hierarchical porous nano-silica, and nano-silicon/aluminum aerogels for producing highly efficient CO[sub.2] adsorbents. The prospects of CO[sub.2] sequestration technologies using COFA are also discussed. The objective of this work is to help researchers from academia and industry keep abreast of the latest progress in the study of CO[sub.2] sequestration by COFA.
  • Publisher: MDPI AG
  • Language: English
  • Identifier: ISSN: 1996-1073
    EISSN: 1996-1073
    DOI: 10.3390/en16176241
  • Source: GFMER Free Medical Journals
    ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
    DOAJ Directory of Open Access Journals
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