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Visualizing pore scale alterations in artificial materials by CO2 exposure using HRXCT

Marijn Boone, Mieke Quaghebeur, Helga Ferket, Tim De Kock UGent, Jan Dewanckele UGent, Matthieu Boone UGent, Loes Brabant UGent and Veerle Cnudde UGent (2011) Flows and mechanics in natural porous media from pore to field scale, Extended abstracts.
abstract
Sequestration of CO2 in geological reservoirs is a transitional solution to reduce the concentration of greenhouse gases in the atmosphere, pending sufficient renewable energy alternatives. Carbonation at the earth’s surface can also be used to sequestrate CO2 in industrial processes, to stabilize mineral waste or even to transform waste into new innovative building materials. A thorough understanding of the mineral-CO2 interactions is therefore essential in the advances of industrial carbonation processes and the upscaling of geological storage. Due to the complexity and heterogeneity of reservoir rocks and minerals waste materials used in laboratory experiments, it is often a challenge to compile a model for reactive transport from physico-chemical data, deducted from reactor experiments, and even more difficult to calibrate or validate this model. This research aims to unravel the processes that occur when a CO2-enriched fluid reacts with different mineral phases in porous media and to quantify the influence of physico-chemical changes on the porosity and permeability of the rock. In order to deduct the influence of different parameters like mineralogy, reactive surface, porosity and permeability as unambiguously as possible, homogeneous artificial porous materials are used. These artificial materials are created from chemically pure mineral powders, with controllable petrophysical parameters (porosity, permeability, reactive surface, composition) and exposed to CO2-enriched fluid in batch and flow through reactors. The physico-chemical changes in the material are analysed using traditional methods and High Resolution X-ray Computed Tomography (HRXCT). HRXCT is a non-destructive technique that allows a complete characterization of the artificial rocks in 3D up to sub-micron resolution (400 nm). The non-destructive nature of this technique allows quantifying the changes (dissolution/precipitation) through time. By combining experimental results from traditional methods and the 3D HRXCT images with the models for reactive transport through porous media, the models can be validated and eventually calibrated. This will help also to better understand more complex experiments on complex reservoir materials and to optimize of the carbonation processes for the stabilisation of mineral waste and the production of innovative building materials.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
in
Flows and mechanics in natural porous media from pore to field scale, Extended abstracts
pages
3 pages
publisher
IFP Energies nouvelles
place of publication
Rueil-Malmaison, France
conference name
International conference on Flows and Mechanics in Natural Porous Media : From pore to field scale (Pore2Field)
conference location
Rueil-Malmaison, France
conference start
2011-11-16
conference end
2011-11-18
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1991928
handle
http://hdl.handle.net/1854/LU-1991928
date created
2012-01-17 23:16:58
date last changed
2017-01-02 09:53:00
@inproceedings{1991928,
  abstract     = {Sequestration of CO2 in geological reservoirs is a transitional solution to reduce the concentration of greenhouse gases in the atmosphere, pending sufficient renewable energy alternatives. Carbonation at the earth{\textquoteright}s surface can also be used to sequestrate CO2 in industrial processes, to stabilize mineral waste or even to transform waste into new innovative building materials. A thorough understanding of the mineral-CO2 interactions is therefore essential in the advances of industrial carbonation processes and the upscaling of geological storage. Due to the complexity and heterogeneity of reservoir rocks and minerals waste materials used in laboratory experiments, it is often a challenge to compile a model for reactive transport from physico-chemical data, deducted from reactor experiments, and even more difficult to calibrate or validate this model. This research aims to unravel the processes that occur when a CO2-enriched fluid reacts with different mineral phases in porous media and to quantify the influence of physico-chemical changes on the porosity and permeability of the rock.
In order to deduct the influence of different parameters like mineralogy, reactive surface, porosity and permeability as unambiguously as possible, homogeneous artificial porous materials are used. These artificial materials are created from chemically pure mineral powders, with controllable petrophysical parameters (porosity, permeability, reactive surface, composition) and exposed to CO2-enriched fluid in batch and flow through reactors. The physico-chemical changes in the material are analysed using traditional methods and High Resolution X-ray Computed Tomography (HRXCT). HRXCT is a non-destructive technique that allows a complete characterization of the artificial rocks in 3D up to sub-micron resolution (400 nm). The non-destructive nature of this technique allows quantifying the changes (dissolution/precipitation) through time. By combining experimental results from traditional methods and the 3D HRXCT images with the models for reactive transport through porous media, the models can be validated and eventually calibrated. This will help also to better understand more complex experiments on complex reservoir materials and to optimize of the carbonation processes for the stabilisation of mineral waste and the production of innovative building materials.},
  author       = {Boone, Marijn and Quaghebeur, Mieke and Ferket, Helga and De Kock, Tim and Dewanckele, Jan and Boone, Matthieu and Brabant, Loes and Cnudde, Veerle},
  booktitle    = {Flows and mechanics in natural porous media from pore to field scale, Extended abstracts},
  language     = {eng},
  location     = {Rueil-Malmaison, France},
  pages        = {3},
  publisher    = {IFP Energies nouvelles},
  title        = {Visualizing pore scale alterations in artificial materials by CO2 exposure using HRXCT},
  year         = {2011},
}

Chicago
Boone, Marijn, Mieke Quaghebeur, Helga Ferket, Tim De Kock, Jan Dewanckele, Matthieu Boone, Loes Brabant, and Veerle Cnudde. 2011. “Visualizing Pore Scale Alterations in Artificial Materials by CO2 Exposure Using HRXCT.” In Flows and Mechanics in Natural Porous Media from Pore to Field Scale, Extended Abstracts. Rueil-Malmaison, France: IFP Energies nouvelles.
APA
Boone, Marijn, Quaghebeur, M., Ferket, H., De Kock, T., Dewanckele, J., Boone, M., Brabant, L., et al. (2011). Visualizing pore scale alterations in artificial materials by CO2 exposure using HRXCT. Flows and mechanics in natural porous media from pore to field scale, Extended abstracts. Presented at the International conference on Flows and Mechanics in Natural Porous Media : From pore to field scale (Pore2Field), Rueil-Malmaison, France: IFP Energies nouvelles.
Vancouver
1.
Boone M, Quaghebeur M, Ferket H, De Kock T, Dewanckele J, Boone M, et al. Visualizing pore scale alterations in artificial materials by CO2 exposure using HRXCT. Flows and mechanics in natural porous media from pore to field scale, Extended abstracts. Rueil-Malmaison, France: IFP Energies nouvelles; 2011.
MLA
Boone, Marijn, Mieke Quaghebeur, Helga Ferket, et al. “Visualizing Pore Scale Alterations in Artificial Materials by CO2 Exposure Using HRXCT.” Flows and Mechanics in Natural Porous Media from Pore to Field Scale, Extended Abstracts. Rueil-Malmaison, France: IFP Energies nouvelles, 2011. Print.