Cited by 118Bauxite Residue and UtilizationCO2 Sequestration and Geologic InteractionsCarbon Dioxide Capture Technologies

CO2 Sequestration by Aqueous Red Mud Carbonation at Ambient Pressure and Temperature

Bonenfant, Danielle, Kharoune, Lynda, Sauvé, Sébastien, Hausler, Robert, Niquette, Patrick, Mimeault, Murielle, Kharoune, Mourad·2008·Industrial & Engineering Chemistry Research

Abstract

An analysis of carbonation was carried out with the aqueous fresh red mud suspension at a liquid-to-solid ratio of 10 kg/kg, as well as in the leached-hydrated matrixes and leachates isolated from this red mud suspension after three successive leachings, to evaluate their intrinsic carbonation potential at ambient conditions (temperature of 20 ± 1 °C and atmospheric pressure). The carbonation assays were performed at 20 °C using a CO 2 concentration of 15.00 vol% at a flow rate of 5 mL/min. The red mud matrix has a great leaching capacity of Na−(hydr)oxide, which is the principal hydroxide that seems to be implicated in the carbonation of leachates that have half-carbonation capacity of red mud. Moreover, the carbonation of the red mud suspension also involves a portlandite-containing matrix. The carbonation of the red mud suspension and leachates implicates a complete neutralization of their content in Ca− and Na−(hydr)oxides. Although the leached hydrated-matrixes seem to be partially carbonated, it preserves a carbonation capacity near to that of leachate after three successive leachings. Moreover, three leached hydrated-matrixes and leachates have a carbonation capacity (7.09 g of CO 2 /100 g of red mud) higher than the carbonation capacity obtained for the red mud suspension, which is evaluated to 4.15 g of CO 2 /100 g of red mud. Taken together, these results suggest that the carbonation of the red mud may be enhanced by the use of leached hydrated-matrixes and leachates obtained from multiple leaching.

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Crossref · 10.1021/ie7017228

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  • A preliminary economic analysis reported that 90% CO2 capture from a 532 MW power plant would cost about $11-21 per t-CO2 assuming a sequestration capacity of 0.1-0.2 t-CO2 per t-FA.

    “A preliminary economic analysis of the process reported that 90% CO 2 capture from a 532 MW power plant would cost about $11-21 per t-CO 2 assuming a sequestration capacity of 0.1-0.2t-CO 2 per t-FA.156”
  • A pilot scale mineral carbonation process was developed and tested by reacting coal FA with flue gases in a fluidized bed reactor at a 2120 MW coal-fired power plant in Point of Rocks, USA.

    “A pilot scale mineral carbonation process was developed and tested by reacting coal FA with flue gases in a fluidized bed reactor at a 2120 MW coal-fired power plant in Point of Rocks, USA.”
  • A pilot scale mineral carbonation process using coal FA has been installed at a 2120 MW coal-fired power plant to reduce CO2, SO2 and Hg emissions in Point of Rocks, USA.

    “For example, a pilot scale mineral carbonation process that uses coal FA has been installed at a 2120 MW coal-fired power plant to reduce CO 2 , SO 2 and Hg emissions in Point of Rocks, USA.156,221”

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Authors
Bonenfant, D., Kharoune, L., Sauvé, S., Hausler, R., Niquette, P., Mimeault, M., & Kharoune, M.
Affiliations
  • University of Nebraska Medical Center (US)
  • STEPPE, Département de Génie de la Construction, Département de Génie Mécanique, and Département de Génie de la Production Automatisée, École de Technologie Supérieure, 1100, Notre-Dame Ouest, Montréal, Québec, Canada H3C 1K3, Département de Chimie, Université de Montréal, P.O. 6128, Succursale Centreville, Montréal, Québec, Canada H3C 3J7, and Department of Biochemistry and Molecular Biology, College of Medicine, Eppley Cancer Institute, 7052 DRC, University of Nebraska Medical Center, Omaha, Nebraska...
Corresponding author
Kharoune, Mourad
Venue
Industrial & Engineering Chemistry Research
Published
2008-09-26
Volume
47
Issue
20
Pages
7617-7622
ISSN
  • 0888-5885 (ISSN-L)
  • 1520-5045
OpenAlex
W2008057983
Cited by
116
References
13
Citations by year
2026: 14 · 2025: 14 · 2024: 18 · 2023: 11 · 2022: 6 · 2021: 7 · 2020: 2 · 2019: 3 · 2018: 2 · 2017: 1 · 2016: 4 · 2015: 4 · 2014: 4 · 2013: 5 · 2012: 6
FWCI
10.64
Type
journal article
Language
en
Open access
closed
Locations
  • Industrial & Engineering Chemistry Research (publishedVersion)
  • Espace ÉTS (ETS) (submittedVersion)
Funders
Natural Resources Canada
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Bauxite Residue and Utilization
  • Physical Sciences › Environmental Science › Environmental Engineering › CO2 Sequestration and Geologic Interactions
  • Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
Keywords
red mud, carbonation, CO2 sequestration, leaching, leachate, portlandite, sodium hydroxide, calcium hydroxide, industrial waste valorization

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