Dawsonite synthesis and reevaluation of its thermodynamic properties from solubility measurements: Implications for mineral trapping of CO2

Bénézeth, Pascale; Palmer, Donald A.; Anovitz, Lawrence M.; Horita, Juske

doi:10.1016/j.gca.2007.07.003

Cited by 133 publications

(84 citation statements)

References 46 publications

(58 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Black line: "slurry mount" method. Benezeth et al (2007), which is based on their solubility measurement of dawsonite at 50 -200 o C. The results showed that the experimental solutions were undersaturated with respect to dawsonite, which corroborates with the XRD results. Geochemical modeling results also show that boehmite, kaolinite, and paragonite were supersaturated.…”

Section: Results From the Experiments 7 ("Dawsonite Precipitation")supporting

confidence: 80%

A Novel Approach to Experimental Studies of Mineral Dissolution Kinetics

Chen¹

2008

View full text Add to dashboard Cite

Currently, DOE is conducting pilot CO 2 injection tests to evaluate the concept of geological sequestration. The injected CO 2 is expected to react with the host rocks and these reactions can potentially alter the porosity, permeability, and mechanical properties of the host or cap rocks. Reactions can also result in precipitation of carbonate-containing minerals that favorably and permanently trap CO 2 underground. Many numerical models have been used to predict these reactions for the carbon sequestration program. However, a firm experimental basis for predicting silicate reaction kinetics in CO 2 injected geological formations is urgently needed to assure the reliability of the geochemical models used for the assessments of carbon sequestration strategies. The funded experimental and theoretical study attempts to resolve this outstanding scientific issue by novel experimental design and theoretical interpretation of silicate dissolution rates at conditions pertinent to geological carbon sequestration.In this four year research grant (three years plus a one year no cost extension), seven (7) laboratory experiments of CO 2 -rock-water interactions were carried out. An experimental design allowed the collection of water samples during experiments in situ and thus prevented back reactions. Analysis of the in situ samples delineated the temporal evolution of aqueous chemistry because of CO 2 -rock-water interactions. The solid products of the experiments were retrieved at the end of the experimental run, and analyzed with a suite of advanced analytical and electron microscopic techniques (i.e., atomic resolution transmission electron microscopy (TEM), scanning electron microscopy (SEM), electron microprobe, X-ray diffraction, X-ray photoelectron spectroscopy (XPS)). As a result, the research project probably has produced one of the best data sets for CO 2 -rock-water interactions in terms of both aqueous solution chemistry and solid characterization. Three experiments were performed using the Navajo sandstone. Navajo sandstone is geologically equivalent to the Nugget sandstone, which is a target formation for a regional partnership injection project. Our experiments provided the experimental data on the potential CO 2 -rock-water interactions that are likely to occur in the aquifer. Geochemical modeling was performed to interpret the experimental results.Our single mineral (feldspar) experiments addressed a basic research need. i.e., the coupled nature of dissolution and precipitation reactions, which has universal implication to the reaction kinetics as it applied to CO 2 sequestration. Our whole rock experiments (Navajo sandstone) addressed the applied research component, e.g., reacting Navajo sandstone with brine and CO 2 has direct relevance on the activities of a number of regional partnerships.The following are the major findings from this project:1. The project generated a large amount of experimental data that is central to evaluating CO 2 -water-rcok interactions and providing ground truth to pred...

show abstract

Section: Results From the Experiments 7 ("Dawsonite Precipitation")supporting

confidence: 80%

A Novel Approach to Experimental Studies of Mineral Dissolution Kinetics

Chen¹

2008

View full text Add to dashboard Cite

show abstract

“…Of these minerals, only dawsonite is distinctively a product of unusually high CO 2 concentrations (e.g. Wopfner andHöcker, 1987, Hellevang et al, 2005;Bénézeth et al, 2007), the other carbonates can be either detrital in origin or form during 'ordinary' burial diagenesis.…”

Section: Discussionmentioning

confidence: 99%

“…There must be other factors that control the growth of dawsonite, including pH and nucleation (Bénézeth et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

CO2-Mineral Reaction in a Natural Analogue for CO2 Storage--Implications for Modeling

Wilkinson¹,

Haszeldine²,

Fallick³

et al. 2009

Journal of Sedimentary Research

View full text Add to dashboard Cite

Geochemical models of CO 2 injection into reservoir sandstones often predict the growth of minerals that will permanently store the CO 2 in solid form, and injection experiments record significant fluctuations in porewater chemistry on a short time scale. Yet the proportion of CO 2 reaction may be small, even over geological time scales. A southern North Sea (UK) gas accumulation with a high natural CO 2 content (c. 50 %) forms a natural analogue to engineered storage, and provides a calibration point for

show abstract

“…41 The thermodynamic data used with CHNOSZ is based on the work by Benezeth et al for dawsonite, and Al metal and Al oxi-hydroxide solids from Robie and Hemingway, and Tutolo et al [42][43][44] Thermodynamic data for Al aqueous species are from Tagirov and Schott. 45 Thermodynamic data for AlCl 3 •6H 2 O solid along with binary Pitzer parameters for concentrated AlCl 3 electrolyte were obtained from the work of Wang et al 46 Other Pitzer parameters relevant to this system were obtained from the thermodynamic database developed for salt precipitation in a subsurface nuclear waste repository (see Appendix I in Mariner).…”

Section: Thermodynamic Modelingmentioning

confidence: 99%

“…The resulting phase topology is consistent with that described by Benezeth et al for dawsonite equilibria with Al-hydroxides (gibbsite, boehmite). 42 The effect of Alhydroxides was evaluated by allowing/suppressing these solids from the product phase assemblage. The effect of suppressing these solids is to represent the case where excess Na and CO 2 (relative to Al) in solution favors dawsonite formation (not shown) as suggested by Álvarez-Ayuso and Nugteren.…”

Section: Thermodynamic Modelingmentioning

confidence: 99%

The controlling role of sodium and carbonate on the atmospheric corrosion rate of aluminum

et al. 2017

View full text Add to dashboard Cite

Aluminum and aluminum alloys are widely used in many outdoor applications due to their inherent corrosion resistance attributed to the formation of a protective oxide layer. While corrosion rates are generally considered low for aluminum in many atmospheric environments, understanding of the corrosion performance over time is necessary to predict the cost, safety, and esthetics of these materials. The vast majority of the knowledgebase of atmospheric aluminum corrosion is built on environment-response relationships; often based on statistical correlation of corrosion rate data with atmospheric environmental conditions. However, there is still a limited mechanistic understanding of corrosion processes associated with this linkage. This lack in knowledge prevents interpretation and limits the extrapolation of these statistical datasets for prediction purposes. Here, the mechanistic dependence of aluminum corrosion rate on salt loading is explored through complimentary experimental and theoretical analysis relating corrosion rate to electrolyte chemistry, volume and corrosion products. From these results a reaction pathway is proposed for the atmospheric corrosion of aluminum that accounts for the governing effects of CO 2 and salt loading on corrosion rate. This reaction pathway provides a new perspective that highlights the importance of the formation and growth of dawsonite (NaAlCO 3 (OH) 2 ), and the subsequent gettering of sodium from the electrolyte leading to the stifling of corrosion kinetics. This study highlights the importance of accounting for the dynamic physical and chemical state of the electrolyte during corrosion in process models and measurement techniques to better understand and predict atmospheric corrosion behavior.

show abstract

Dawsonite synthesis and reevaluation of its thermodynamic properties from solubility measurements: Implications for mineral trapping of CO2

Cited by 133 publications

References 46 publications

A Novel Approach to Experimental Studies of Mineral Dissolution Kinetics

A Novel Approach to Experimental Studies of Mineral Dissolution Kinetics

CO2-Mineral Reaction in a Natural Analogue for CO2 Storage--Implications for Modeling

The controlling role of sodium and carbonate on the atmospheric corrosion rate of aluminum

Contact Info

Product

Resources

About