Applications of fly ash for CO2 capture, utilization, and storage. (January 2019)

• Record Type: Journal Article
• Authors: Dindi, Abdallah; Quang, Dang Viet; Vega, Lourdes F.; Nashef, Enas; Abu-Zahra, Mohammad R.M.
• Is Part Of: Journal of CO₂ utilization. Volume 29(2019)
• Page Start: 82
• Page End: 102
• Publication Date: 2019-01
• Subjects: AC activated carbon -- AM amorphous -- ASTM American Society for Testing and Materials -- BET Brunnaer- Emmet -Teller -- CAN cancrinite -- CEC cation-exchange capacity -- CCUS carbon capture, utilization, and storage -- CFA coal fly ash -- CKD cement kiln dust -- CPAHCL chloropropylamine-hydrochloride -- CTAB n-cetyltrimethylammonium bromide -- DEA diethanolamine -- DSC differential scanning calorimetry -- DMA dimethylamine -- FAC fly ash cancrinite -- FAU faujasite -- FAZ fly ash zeolite -- FBR fluidized bed reactor -- HT hydrotalcite -- LTA linde type A -- MDEA N-methyl-diethanolamine -- MEA monoethanolamine -- MOF metal-organic framework -- OPC Ordinary Portland Cement -- PEI polyethyleneimine -- PEG polyethylene glycol -- PSA pressure swing adsorption -- RFA raw fly ash -- SEM scanning electron microscope -- SOD sodalite -- Tads adsorption temperature -- Tdes desorption temperature -- Treg regeneration temperature -- TEOS tetraethyl orthosilicate -- THT hydrothermal temperature -- TEM transmission electron microscope -- TEPA tetraethylene pentaamine -- TGA thermogravimetric analysis -- TRIS tris(hydroxymethyl)aminomethane -- TSA temperature swing adsorption -- XRD X-ray diffraction -- UC unburned carbon -- VOCs volatile organic compounds -- VSA vacuum swing adsorption -- ZIF zeolite imidazolate framework; Fly ash -- CO2 Capture -- Mineralization -- CO2 Utilization -- CO2 Sequestration; Carbon dioxide -- Periodicals; Carbon dioxide -- Environmental aspects -- Periodicals; Carbon dioxide mitigation -- Periodicals; Carbon dioxide; Carbon dioxide -- Environmental aspects; Carbon dioxide mitigation; Periodicals; 628.53205
• DOI: 10.1016/j.jcou.2018.11.011
• Languages: English
• ISSNs: 2212-9820

Abstract

Highlights: The hazards of fly ash to the environment and public health are outlined. Fly ash has a great potential for capture, utilization, and storage of CO2 (CCUS) applications. Fly ash based adsorbents have comparable performances with commercial adsorbents when applied for CO2 capture. CO2 utilization using fly ashes can produce valubale products. New pathways for applying fly ash in CO2 utilization are introduced and discussed. Abstract: Utilization is one of the prominent strategies for the management of hazardous industrial wastes like fly ash. As fossil-based power is expected to remain a major source of global electricity supply in the coming years, the absence of effective management strategies will exacerbate the problem of fly ash waste in the environment. Global fly ash utilization rates remain low due to limited utilization opportunities outside the construction industry. This necessitates the development of new pathways for its utilization as a means of diverting it from landfills where it poses a significant threat to the environment. Carbon capture, utilization, and storage presents opportunities to utilize fly ash in various ways; as a capture material, as a medium for permanent CO2 storage via mineralization, and as a catalyst or catalyst support for CO2 utilization processes. This study reviews the different technologies through which fly ash and materials derived from fly ash are applied in the CO2 capture, utilization, and storage technology while highlighting some challenges and opportunities for further research and development.