Understanding the chemistry of direct aqueous carbonation with additives through geochemical modelling

Bonfils, Benjamin, Bourgeois, Florent, Julcour, Carine, Guyot, Francois and Chiquet, Pierre (2011). Understanding the chemistry of direct aqueous carbonation with additives through geochemical modelling. In: John Gale, Chris Hendriks and Wim Turkenberg, 10th International Conference On Greenhouse Gas Control Technologies. 10th International Conference on Greenhouse Gas Control Technologies (GHGT-10), Amsterdam, Netherlands, (3809-3816). 19-23 September 2010. doi:10.1016/j.egypro.2011.02.316

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Author Bonfils, Benjamin
Bourgeois, Florent
Julcour, Carine
Guyot, Francois
Chiquet, Pierre
Title of paper Understanding the chemistry of direct aqueous carbonation with additives through geochemical modelling
Conference name 10th International Conference on Greenhouse Gas Control Technologies (GHGT-10)
Conference location Amsterdam, Netherlands
Conference dates 19-23 September 2010
Proceedings title 10th International Conference On Greenhouse Gas Control Technologies   Check publisher's open access policy
Journal name Energy Procedia   Check publisher's open access policy
Place of Publication Amsterdam, Netherlands
Publisher Elsevier
Publication Year 2011
Sub-type Fully published paper
DOI 10.1016/j.egypro.2011.02.316
ISSN 1876-6102
Editor John Gale
Chris Hendriks
Wim Turkenberg
Volume 4
Start page 3809
End page 3816
Total pages 8
Collection year 2013
Language eng
Abstract/Summary Amongst possible mineral carbonation strategies, direct aqueous mineral carbonation using organic salts is perhaps the most promising one. By going to and from between geochemical modelling and experimental results, this paper reviews key findings and conclusions to date about this process. With the magnesium silicate–oxalate system, the paper makes a strong case for the necessity to characterize both solid and liquid phases in order to analyze any aqueous mineral carbonation test results. It is shown that partial information about reaction products, such as liquid phase analysis without characterization of the associated solid phase, can easily lead to flawed conclusions. Proper analysis of solid products is recognized however to complicate experimental work considerably, with many analytical techniques being required to reveal the true nature of the solid phases present in aqueous mineral carbonation chemical systems. Given the complexity of such systems, geochemical equilibrium modelling is found to be an invaluable companion tool for planning and interpretation of experimental results. However, in contrast with the performance of geochemical simulation tools available today, such as the CHESS package used in this work, the lack of thermodynamic data necessary to simulate the behaviour of relevant chemical systems is a real issue that must be addressed.
Keyword Mineral carbonation
Magnesium silicate
Oxalate
Geochemical modelling
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Conference Paper
Collection: Julius Kruttschnitt Mineral Research Centre Publications
 
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Created: Mon, 24 Sep 2012, 13:12:57 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre