From mixed flow reactor to column experiments and modeling: Upscaling of calcite dissolution rate

Bouissonnié, Arnaud; Daval, Damien; Marinoni, Marianna; Ackerer, Philippe

doi:10.1016/j.chemgeo.2018.04.017

Cited by 37 publications

(59 citation statements)

References 55 publications

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“…where B is a constant. The rate equation has been used to explain the dissolution behaviors of albite, gibbsite, labradorite, and smectite [56], and, more recently, calcite [133]. For oxide glasses, due to the lack of long-range order [51], similar defects may not exist.…”

Section: Dissolution Rate As the Solution Approaches Saturationmentioning

confidence: 99%

Thermodynamic equilibrium and kinetic fundamentals of oxide dissolution in aqueous solution

Wang

2020

J. Mater. Res.

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Section: Dissolution Rate As the Solution Approaches Saturationmentioning

confidence: 99%

Thermodynamic equilibrium and kinetic fundamentals of oxide dissolution in aqueous solution

Wang

2020

J. Mater. Res.

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“…Moreover, VSI dissolution rates have been measured by [54] using a mixed flow set-up and slightly carbonated fluids with saturation states in relation to calcite close to zero. The authors [54], obtained a mean rate of the same order of magnitude (≈0.5 µmol•m −2 •s −1 ) as the rates measured here. The set-up used a high hydraulic residence time (200 min) that could result in diffusion effects and lower dissolution rates, but has been compensated by using stirring rates.…”

Section: Relevance To Previous Research and Implicationsmentioning

confidence: 99%

A Statistical Approach for Analysis of Dissolution Rates Including Surface Morphology

2019

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Understanding mineral dissolution is relevant for natural and industrial processes that involve the interaction of crystalline solids and fluids. The dissolution of slow dissolving minerals is typically surface controlled as opposed to diffusion/transport controlled. At these conditions, the dissolution rate is no longer constant in time or space, an outcome observed in rate maps and correspondent rate spectra. The contribution and statistical prevalence of different dissolution mechanisms is not known. Aiming to contribute to close this gap, we present a statistical analysis of the variability of calcite dissolution rates at the nano- to micrometer scale. A calcite-cemented sandstone was used to perform flow experiments. Dissolution of the calcite-filled rock pores was measured using vertical scanning interferometry. The resultant types of surface morphologies influenced the outcome of dissolution. We provide a statistical description of these morphologies and show their temporal evolution as an alternative to the lack of rate spatial variability in rate constants. Crystal size impacts dissolution rates most probably due to the contribution of the crystal edges. We propose a new methodology to analyze the highest rates (tales of rate spectra) that represent the formation of deeper etch pits. These results have application to the parametrization and upscaling of geochemical kinetic models, the characterization of industrial solid materials and the fundamental understanding of crystal dissolution.

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“…Calcite is a common mineral in the Earth's crust and is characterized by significant dynamics of its surface, depending on environmental conditions (e.g., Fischer et al, 2012; Jordan & Rammensee, 1998; Noiriel et al, 2009, 2020). Acquisition of the type of data we consider is subject to increased interest to characterize microscale geochemical processes deriving from interactions taking place at fluid‐rock interfaces (e.g., Bouissonnié et al, 2018; Pollet‐Villard, Daval, Ackerer, et al, 2016; Pollet‐Villard, Daval, Fritz, et al, 2016, and references therein). While the possibility of acquiring these direct observations is continuously enhanced through the use of modern atomic force microscopy and vertical scanning interferometry, statistical analyses of available data sets are still limited to standard variography (Pollet‐Villard, Daval, Ackerer, et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Generalized Sub‐Gaussian Processes: Theory and Application to Hydrogeological and Geochemical Data

Siena

Guadagnini

Bouissonnié

et al. 2020

Water Resources Research

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We start from the well‐documented scale dependence displayed by the probability distribution and associated statistical moments of a variety of hydrogeological and soil science variables and their spatial or temporal increments. These features can be captured by a Generalized Sub‐Gaussian (GSG) model, according to which a given variable, Y, is subordinated to a (typically spatially correlated) Gaussian random field, G, through a subordinator, U. This study extends the theoretical framework originally proposed by Riva et al. (2015, 10.1002/2015WR016998) to include the possibility of selecting a general form of the subordinator, thus enhancing the flexibility of the GSG framework for data interpretation and modeling. Analytical expressions for the GSG process associated with lognormal, Pareto, and Gamma subordinator distributions are then derived. We demonstrate the ability of the GSG modeling framework to capture the way key features of the statistics associated with two data sets transition across scales. The latter correspond to variables, which are typical of a geochemical and a hydrogeological setting, that is, (i) data characterizing the micrometer‐scale surface roughness of a crystal of calcite, collected within a laboratory‐scale setting, resulting from induced mineral dissolution, and (ii) a vertical distribution of decimeter‐scale porosity data, collected along a deep kilometer‐scale borehole within a sandstone formation and typically used in hydrogeological and geophysical characterization of aquifer systems. The theoretical developments and the successful applications of the approach we propose provide a unique framework within which one can interpret a broad range of scaling behaviors displayed by a variety of Earth and environmental variables in various scenarios.

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From mixed flow reactor to column experiments and modeling: Upscaling of calcite dissolution rate

Cited by 37 publications

References 55 publications

Thermodynamic equilibrium and kinetic fundamentals of oxide dissolution in aqueous solution

Thermodynamic equilibrium and kinetic fundamentals of oxide dissolution in aqueous solution

A Statistical Approach for Analysis of Dissolution Rates Including Surface Morphology

Generalized Sub‐Gaussian Processes: Theory and Application to Hydrogeological and Geochemical Data

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