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Experimental investigation and simplistic geochemical modeling of CO2 mineral carbonation using the mount tawai peridotite

In this work, the potential of CO2 mineral carbonation of brucite (Mg(OH)2) derived from the Mount Tawai peridotite (forsterite based (Mg)2SiO4) to produce thermodynamically stable magnesium carbonate (MgCO3) was evaluated. The effect of three main factors (reaction temperature, particle size, and w...

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Main Authors: Rahmani, O., Highfield, J., Junin, R., Tyrer, M., Pour, A. B.
Format: Article
Language:English
Published: MDPI AG 2016
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/73791/1/OmeidRahmani2016_ExperimentalInvestigationandSimplisticGeochemicalModelling.pdf
http://eprints.utm.my/id/eprint/73791/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84964686866&doi=10.3390%2fmolecules21030353&partnerID=40&md5=392d4ec6446b5824fbf1e11cf37baea2
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spelling my.utm.737912017-11-18T07:08:20Z http://eprints.utm.my/id/eprint/73791/ Experimental investigation and simplistic geochemical modeling of CO2 mineral carbonation using the mount tawai peridotite Rahmani, O. Highfield, J. Junin, R. Tyrer, M. Pour, A. B. TP Chemical technology In this work, the potential of CO2 mineral carbonation of brucite (Mg(OH)2) derived from the Mount Tawai peridotite (forsterite based (Mg)2SiO4) to produce thermodynamically stable magnesium carbonate (MgCO3) was evaluated. The effect of three main factors (reaction temperature, particle size, and water vapor) were investigated in a sequence of experiments consisting of aqueous acid leaching, evaporation to dryness of the slurry mass, and then gas-solid carbonation under pressurized CO2. The maximum amount of Mg converted to MgCO3 is ∼99%, which occurred at temperatures between 150 and 175 °C. It was also found that the reduction of particle size range from >200 to <75 μm enhanced the leaching rate significantly. In addition, the results showed the essential role of water vapor in promoting effective carbonation. By increasing water vapor concentration from 5 to 10 vol %, the mineral carbonation rate increased by 30%. This work has also numerically modeled the process by which CO2 gas may be sequestered, by reaction with forsterite in the presence of moisture. In both experimental analysis and geochemical modeling, the results showed that the reaction is favored and of high yield; going almost to completion (within about one year) with the bulk of the carbon partitioning into magnesite and that very little remains in solution. MDPI AG 2016 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/73791/1/OmeidRahmani2016_ExperimentalInvestigationandSimplisticGeochemicalModelling.pdf Rahmani, O. and Highfield, J. and Junin, R. and Tyrer, M. and Pour, A. B. (2016) Experimental investigation and simplistic geochemical modeling of CO2 mineral carbonation using the mount tawai peridotite. Molecules, 21 (3). ISSN 1420-3049 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84964686866&doi=10.3390%2fmolecules21030353&partnerID=40&md5=392d4ec6446b5824fbf1e11cf37baea2
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Rahmani, O.
Highfield, J.
Junin, R.
Tyrer, M.
Pour, A. B.
Experimental investigation and simplistic geochemical modeling of CO2 mineral carbonation using the mount tawai peridotite
description In this work, the potential of CO2 mineral carbonation of brucite (Mg(OH)2) derived from the Mount Tawai peridotite (forsterite based (Mg)2SiO4) to produce thermodynamically stable magnesium carbonate (MgCO3) was evaluated. The effect of three main factors (reaction temperature, particle size, and water vapor) were investigated in a sequence of experiments consisting of aqueous acid leaching, evaporation to dryness of the slurry mass, and then gas-solid carbonation under pressurized CO2. The maximum amount of Mg converted to MgCO3 is ∼99%, which occurred at temperatures between 150 and 175 °C. It was also found that the reduction of particle size range from >200 to <75 μm enhanced the leaching rate significantly. In addition, the results showed the essential role of water vapor in promoting effective carbonation. By increasing water vapor concentration from 5 to 10 vol %, the mineral carbonation rate increased by 30%. This work has also numerically modeled the process by which CO2 gas may be sequestered, by reaction with forsterite in the presence of moisture. In both experimental analysis and geochemical modeling, the results showed that the reaction is favored and of high yield; going almost to completion (within about one year) with the bulk of the carbon partitioning into magnesite and that very little remains in solution.
format Article
author Rahmani, O.
Highfield, J.
Junin, R.
Tyrer, M.
Pour, A. B.
author_facet Rahmani, O.
Highfield, J.
Junin, R.
Tyrer, M.
Pour, A. B.
author_sort Rahmani, O.
title Experimental investigation and simplistic geochemical modeling of CO2 mineral carbonation using the mount tawai peridotite
title_short Experimental investigation and simplistic geochemical modeling of CO2 mineral carbonation using the mount tawai peridotite
title_full Experimental investigation and simplistic geochemical modeling of CO2 mineral carbonation using the mount tawai peridotite
title_fullStr Experimental investigation and simplistic geochemical modeling of CO2 mineral carbonation using the mount tawai peridotite
title_full_unstemmed Experimental investigation and simplistic geochemical modeling of CO2 mineral carbonation using the mount tawai peridotite
title_sort experimental investigation and simplistic geochemical modeling of co2 mineral carbonation using the mount tawai peridotite
publisher MDPI AG
publishDate 2016
url http://eprints.utm.my/id/eprint/73791/1/OmeidRahmani2016_ExperimentalInvestigationandSimplisticGeochemicalModelling.pdf
http://eprints.utm.my/id/eprint/73791/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84964686866&doi=10.3390%2fmolecules21030353&partnerID=40&md5=392d4ec6446b5824fbf1e11cf37baea2
_version_ 1643656749083787264
score 13.222552

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