A review of Portland cement carbonation mechanisms in CO2 rich environment

Huet, Bruno; Tasoti, Valentina; Khalfallah, I.

doi:10.1016/j.egypro.2011.02.507

Cited by 40 publications

(39 citation statements)

References 17 publications

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“…We can conclude that, similarly as claimed in (Huet et al, 2011), in limestone-like conditions, carbonation patterns/kinetics are either controlled by carbon transport (carbon dominated) or by the clogging caused by calcium transport (calcium dominated).…”

Section: Discussionmentioning

confidence: 68%

“…The measured kinetics of the penetration of the total reacted zone, differ from each other, by several orders of magnitude: ∼ 0.066 mm/day in (Duguid and Scherer, 2010), ∼ 0.23 mm/day in (Rimmelé et al, 2008) and ∼ 0.004 mm/day in (Kutchko et al, 2008). For cement paste exposed to CO 2 saturated brine, it is believed that, the reactivity is either controlled by Ca or CO 2 diffusion, depending on the kind of boundary conditions, or the CO 2 penetration stops because of the clogging effect due to calcium carbonate formation (Huet et al, 2011). In order to understand the difference between the experimental results, different parameters, e.g., CO 2 concentration in the external 6.2 Sandstone-like conditions 71 solution, temperature, types of aqueous species in the external solution, should be analyzed separately.…”

Section: Introductionmentioning

confidence: 99%

“…Compared to other numerical simulations of the carbonation of cement-based materials under CO 2 sequestration conditions, e.g., (Huet et al, 2010) who used Dynaflow TM (Prevost, 2007), who used FLOTRAN (Lichtner, 2001), or (Huet et al, 2011) who used both, this model considers the multiple flow of liquid and gas phase, and introduces temperature dependence for both transport and chemical reactions, while the other two are limited to saturated conditions at room temperature. It is worth-noting that even under saturated conditions, this code has the advantage of using different diffusion coefficient for each aqueous species (also did in ), thanks to the Nernst-Plank equation employed in the code.…”

Section: Introductionmentioning

confidence: 99%

“…The authors have intended to simulate the conditions of CO 2 -saturated water which were tested in Duguid's experiments (Duguid and Scherer, 2010). In the recently published work of (Huet et al, 2011), experimental works of cement pastes exposed to CO 2 -saturated brine, from (Duguid and Scherer, 2010;Rimmelé et al, 2008;Kutchko et al, 2008) were simulated and compared briefly. Huet et al concluded that the reactivity is either controlled by Ca/CO 2 diffusion, or stops because of calcium carbonate caused clogging.…”

Section: Introductionmentioning

confidence: 99%

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Reactive transport modeling of CO2 through cementitious materials under CO2 geological storage conditions

Shen

2013

International Journal of Greenhouse Gas Control

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RésuméUn modèle de transport réactif est proposé pour simuler la réactivité des matériaux à base de ciment en contact avec une saumure saturée en CO 2 et/ou le CO 2 supercritique (CO 2 sc) dans les conditions de stockage géologique du CO 2 . Un code a été développé pour résoudre simultanément le transport et la chimie par une approche globale couplée, compte tenu de l'effet de la température et de la pression.La variabilité des propriétés du CO 2 sc avec la pression et la température, telles que la solubilité dans l'eau, la densité et la viscosité sont pris en compte. On suppose que tous les processus chimiques sont en équilibre thermodynamique. Les réactions de dissolution et de précipitation de la portlandite (CH) et Ce modèle est en mesure de simuler les processus de carbonatation des matériaux à base de ciment, dans des conditions à la fois saturés et insaturés, dans une large plage de concentration de CO 2 , de température et de pression. Plusieurs expériences, rapportées dans la littérature, sont simulées en utilisant divers types de conditions aux limites: (i) solutions saturées ou non en CO 2 et carbonate de calcium, (ii) gas supercritique de CO 2 . Les prédictions sont comparées avec les observations expérimentales. Certains II phénomènes observés expérimentalement peuvent être également expliqués par le modèle. Mots-clés:Carbonatation, CO 2 supercritique, Transports, Ciment, C-S-H, Décalcification, Pression, Température, Stockage du CO 2 . AbstractA reactive transport model is proposed to simulate the reactivity of cement based material in contact with CO 2 -saturated brine and supercritical CO 2 (scCO 2 ) under CO 2 geological storage conditions. This code is developed to solve simultaneously transport and chemistry by a global coupled approach, considering the effect of temperature and pressure.The variability of scCO 2 properties with pressure and temperature, such as solubility in water, density and viscosity are taken into account. It is assumed that all chemical processes are in thermodynamical equilibrium. Dissolution and precipitation reactions for portlandite (CH) and calcite (CC) are described by mass action laws and threshold of ion activity products in order to account for complete dissolved minerals. A chemical kinetics for the dissolution and precipitation of CH and CC is introduced to facilitate numerical convergence. One properly chosen variable is able to capture the precipitation and dissolution of the relevant phase. A generalization of the mass action law is developed and applied to calcium silicate hydrates (C-S-H) to take into account the continuous variation (decrease) of the Ca/Si ratio during the dissolution reaction of C-S-H. The changes in porosity and microstructure induced by the precipitation and dissolution reactions are also taken into account.Couplings between transport equations and chemical reactions are treated thanks to five mass balance equations written for each atom (Ca, Si, C, K, Cl) as well as one equation for charge balance and one for the total mass. Ion tran...

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Section: Discussionmentioning

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Reactive transport modeling of CO2 through cementitious materials under CO2 geological storage conditions

Shen

2013

International Journal of Greenhouse Gas Control

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“…The previous calculations support several assumptions, such as the linear kinetics of alteration or the absence of a diffusion barrier linked to carbonate precipitation [34]. However, they give primary information about the fracturing genesis in the samples for the two studied conditions.…”

Section: Discussionmentioning

confidence: 88%

Experimental Modelling of the Caprock/Cement Interface Behaviour under CO2 Storage Conditions: Effect of Water and Supercritical CO2 from a Cathodoluminescence Study

et al. 2018

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Abstract:In the framework of CO 2 geological storage, one of the critical points leading to possible important CO 2 leakage is the behaviour of the different interfaces between the rocks and the injection wells. This paper discussed the results from an experimental modelling of the evolution of a caprock/cement interface under high pressure and temperature conditions. Batch experiments were performed with a caprock (Callovo-Oxfordian claystone of the Paris Basin) in contact with a cement (Portland class G) in the presence of supercritical CO 2 under dry or wet conditions. The mineralogical and mechanical evolution of the caprock, the Portland cement, and their interface submitted to the attack of carbonic acid either supercritical or dissolved in a saline water under geological conditions of pressure and temperature. This model should help to better understand the behaviour of interfaces in the proximal zone at the injection site and to prevent risks of leakage from this critical part of injection wells. After one month of ageing at 80 • C under 100 bar of CO 2 pressure, the caprock, the cement, and the interface between the caprock and cement are investigated with Scanning Electron Microscopy (SEM) and cathodoluminescence (CL). The main results reveal (i) the influence of the alteration conditions: with dry CO 2 , the carbonation of the cement is more extended than under wet conditions; (ii) successive phases of carbonate precipitation (calcite and aragonite) responsible for the loss of mechanical cohesion of the interfaces; (iii) the mineralogical and chemical evolution of the cement which undergoes successive phases of carbonation and leaching; (iv) the limited reactivity of the clayey caprock despite the acidic attack of CO 2 ; and (v) the influence of water on the transport mechanisms of dissolved species and thus on the location of mineral precipitations.

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Experimental study of CO₂ injection in a simulated injection well: the MIRAGES experiment

et al. 2013

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The MIRAGES experiment mimics an injection well at the lab scale (1/20). This experiment allows the injection of supercritical CO2 under geological conditions of pressure and temperature. The injection flow rate, confinement and injection pressures and temperatures are recorded during the 30 days of the experiment. Chemical parameters (pH, major element contents) are also monitored. The reservoir is represented by a core sampled in the formation of Lavoux limestone. The core is drilled to form an injection well in which an injection tube (made of stainless steel) is sealed with class G Portland cement together with two discs of Callovo‐Oxfordian clay representing the caprock. After the experiment, the core sample is studied to follow the petrophysical changes of the well materials and rocks. The interfaces between the reservoir, caprock, cement, and steel are investigated using scanning electron microscopy, cathodoluminescence, and Raman spectrometry. The main results suggest (i) good cohesion of the different interfaces despite the carbonation of the cement, (ii) the precipitation of different carbonate phases relating the changes in the chemistry of solution as a function of time, (iii) the enrichment in silica of the cement phase subjected to the action of CO2 providing evidence of new mechanisms of in situ silica re‐condensation, and (iv) the very good mechanical and chemical behavior of the caprock clay despite the alkaline flux from the cement and the acidic attack from the dissolved CO2.

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A review of Portland cement carbonation mechanisms in CO2 rich environment

Cited by 40 publications

References 17 publications

Reactive transport modeling of CO2 through cementitious materials under CO2 geological storage conditions

Reactive transport modeling of CO2 through cementitious materials under CO2 geological storage conditions

Experimental Modelling of the Caprock/Cement Interface Behaviour under CO2 Storage Conditions: Effect of Water and Supercritical CO2 from a Cathodoluminescence Study

Experimental study of CO₂ injection in a simulated injection well: the MIRAGES experiment

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A review of Portland cement carbonation mechanisms in CO2 rich environment

Cited by 40 publications

References 17 publications

Reactive transport modeling of CO2 through cementitious materials under CO2 geological storage conditions

Reactive transport modeling of CO2 through cementitious materials under CO2 geological storage conditions

Experimental Modelling of the Caprock/Cement Interface Behaviour under CO2 Storage Conditions: Effect of Water and Supercritical CO2 from a Cathodoluminescence Study

Experimental study of CO2 injection in a simulated injection well: the MIRAGES experiment

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Experimental study of CO₂ injection in a simulated injection well: the MIRAGES experiment