Bibliografías temáticas / Calcium carbonate (CaCO3) cycle

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Literatura académica sobre el tema "Calcium carbonate (CaCO3) cycle"

Autor: Grafiati
Publicado: 25 de mayo de 2024

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Artículos de revistas sobre el tema "Calcium carbonate (CaCO3) cycle"

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Zou, Zhaoyong, Wouter J. E. M. Habraken, Galina Matveeva, et al. "A hydrated crystalline calcium carbonate phase: Calcium carbonate hemihydrate." Science 363, no. 6425 (2019): 396–400. http://dx.doi.org/10.1126/science.aav0210.

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As one of the most abundant materials in the world, calcium carbonate, CaCO3, is the main constituent of the skeletons and shells of various marine organisms. It is used in the cement industry and plays a crucial role in the global carbon cycle and formation of sedimentary rocks. For more than a century, only three polymorphs of pure CaCO3—calcite, aragonite, and vaterite—were known to exist at ambient conditions, as well as two hydrated crystal phases, monohydrocalcite (CaCO3·1H2O) and ikaite (CaCO3·6H2O). While investigating the role of magnesium ions in crystallization pathways of amorphous
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Battaglia, Gianna, Marco Steinacher, and Fortunat Joos. "A probabilistic assessment of calcium carbonate export and dissolution in the modern ocean." Biogeosciences 13, no. 9 (2016): 2823–48. http://dx.doi.org/10.5194/bg-13-2823-2016.

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Abstract. The marine cycle of calcium carbonate (CaCO3) is an important element of the carbon cycle and co-governs the distribution of carbon and alkalinity within the ocean. However, CaCO3 export fluxes and mechanisms governing CaCO3 dissolution are highly uncertain. We present an observationally constrained, probabilistic assessment of the global and regional CaCO3 budgets. Parameters governing pelagic CaCO3 export fluxes and dissolution rates are sampled using a Monte Carlo scheme to construct a 1000-member ensemble with the Bern3D ocean model. Ensemble results are constrained by comparing
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Fischer, M., D. N. Thomas, A. Krell, et al. "Quantification of ikaite in Antarctic sea ice." Cryosphere Discussions 6, no. 1 (2012): 505–30. http://dx.doi.org/10.5194/tcd-6-505-2012.

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Abstract. Calcium carbonate precipitation in sea ice can increase pCO2 during precipitation in winter and decrease pCO2 during dissolution in spring. CaCO3 precipitation in sea ice is thought to potentially drive significant CO2 uptake by the ocean. However, little is known about the quantitative spatial and temporal distribution of CaCO3 within sea ice. This is the first quantitative study of hydrous calcium carbonate, as ikaite, in sea ice and discusses its potential significance for the carbon cycle in polar oceans. Ice cores and brine samples were collected from pack and land fast sea ice
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Battaglia, G., M. Steinacher, and F. Joos. "A probabilistic assessment of calcium carbonate export and dissolution in the modern ocean." Biogeosciences Discussions 12, no. 24 (2015): 20223–82. http://dx.doi.org/10.5194/bgd-12-20223-2015.

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Abstract. The marine cycle of calcium carbonate (CaCO3) is an important element of the carbon cycle and co-governs the distribution of carbon and alkalinity within the ocean. However, CaCO3 fluxes and mechanisms governing CaCO3 dissolution are highly uncertain. We present an observationally-constrained, probabilistic assessment of the global and regional CaCO3 budgets. Parameters governing pelagic CaCO3 export fluxes and dissolution rates are sampled using a Latin-Hypercube scheme to construct a 1000 member ensemble with the Bern3D ocean model. Ensemble results are constrained by comparing sim
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Gong, Dehong, Zhongxiao Zhang, and Ting Zhao. "Decay on Cyclic CO2 Capture Performance of Calcium-Based Sorbents Derived from Wasted Precursors in Multicycles." Energies 15, no. 9 (2022): 3335. http://dx.doi.org/10.3390/en15093335.

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In order to obtain the cheap waste calcium-based sorbent, three wasted CaCO3 precursors, namely carbide slag, chicken eggshells, and analytical reagent-grade calcium carbonate, were selected and prepared at 700 °C to form calcium-based sorbents for CO2 capture. TGA was used to test the CO2 uptake performance of each calcium-based sorbent in 20 cycles. To identify the decay mechanism of CO2 uptake with an increasing number of cycles, all calcium-based sorbents were characterized by using XRF, XRD, and N2 adsorption. The specific surface area of calcium-based sorbents was used to redefine the fo
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Chafidz, Achmad. "Polypropylene/CaCO<sub>3</sub> Nanocomposites Fabricated Using Masterbatch: Effect of Nano-CaCO<sub>3</sub> Loadings and Re-Processing on the Melting Properties." Materials Science Forum 1067 (August 10, 2022): 73–78. http://dx.doi.org/10.4028/p-2u9f04.

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Polypropylene filled calcium carbonate (CaCO3) nanocomposites were fabricated by employing melt blending/compounding method using masterbatch. To investigate the efffect of reprocessing on the melting properties of PP/CaCO3 nanocomposites, the melt compounding process was conducted twice (two cycles). The effect of nano-CaCO3 loadings (i.e. 5, 10 and 15 wt%) on the melting properties of PP/CaCO3 nanocomposites were also studied. The meling properties of the nanocomposites were analyzed by using a DSC (Differential Scanning Calorimetry). Additionally, the nanocomposites samples were also analyz
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Dieckmann, G. S., G. Nehrke, C. Uhlig, et al. "Brief communication: ikaite (CaCO<sub>3</sub>*6H<sub>2</sub>O) discovered in Arctic sea ice." Cryosphere Discussions 4, no. 1 (2010): 153–61. http://dx.doi.org/10.5194/tcd-4-153-2010.

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Abstract. We report for the first time on the discovery of calcium carbonate crystals as ikaite (CaCO3*6H2O) in sea ice from the Arctic (Kongsfjorden, Svalbard). This finding demonstrates that the precipitation of calcium carbonate during the freezing of sea ice is not restricted to the Antarctic, where it was observed for the first time in 2008. This finding is an important step in the quest to quantify its impact on the sea ice driven carbon cycle and should in the future enable improvement parametrization sea ice carbon models.
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Dieckmann, G. S., G. Nehrke, C. Uhlig, et al. "Brief Communication: Ikaite (CaCO<sub>3</sub>·6H<sub>2</sub>O) discovered in Arctic sea ice." Cryosphere 4, no. 2 (2010): 227–30. http://dx.doi.org/10.5194/tc-4-227-2010.

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Abstract. We report for the first time on the discovery of calcium carbonate crystals as ikaite (CaCO3·6H2O) in sea ice from the Arctic (Kongsfjorden, Svalbard) as confirmed by morphology and indirectly by X-ray diffraction as well as XANES spectroscopy of its amorophous decomposition product. This finding demonstrates that the precipitation of calcium carbonate during the freezing of sea ice is not restricted to the Antarctic, where it was observed for the first time in 2008. This observation is an important step in the quest to quantify its impact on the sea ice driven carbon cycle.
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Rigual Hernández, Andrés S., Thomas W. Trull, Scott D. Nodder, et al. "Coccolithophore biodiversity controls carbonate export in the Southern Ocean." Biogeosciences 17, no. 1 (2020): 245–63. http://dx.doi.org/10.5194/bg-17-245-2020.

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Abstract. Southern Ocean waters are projected to undergo profound changes in their physical and chemical properties in the coming decades. Coccolithophore blooms in the Southern Ocean are thought to account for a major fraction of the global marine calcium carbonate (CaCO3) production and export to the deep sea. Therefore, changes in the composition and abundance of Southern Ocean coccolithophore populations are likely to alter the marine carbon cycle, with feedbacks to the rate of global climate change. However, the contribution of coccolithophores to CaCO3 export in the Southern Ocean is unc
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Anggoro, B. M., and A. Sugandi. "Effect of Calcium Carbonate Application on Initial Vegetative Growth of Oil Palm Planted on Deep Peat." IOP Conference Series: Earth and Environmental Science 1308, no. 1 (2024): 012027. http://dx.doi.org/10.1088/1755-1315/1308/1/012027.

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Abstract The main challenge of planting oil palm on deep peat is naturally acidic soil pH which affects rooting development and activity and uptake of nutrients. Considering one life cycle of oil palm can be up to ≥20 years, ensuring optimum growth of palms since its initial planting is essential. Calcium carbonate (CaCO3) application is a standard practice to increase soil pH, including on peat soils. However, the effective rate and effects of its application to palm growth are still lacking. This trial is aimed to see the effect of CaCO3 application on the vegetative growth of oil palms plan
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Tesis sobre el tema "Calcium carbonate (CaCO3) cycle"

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Planchat, Alban. "Alkalinity and calcium carbonate in Earth system models, and implications for the ocean carbon cycle." Electronic Thesis or Diss., Université Paris sciences et lettres, 2023. http://www.theses.fr/2023UPSLE005.

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L’alcalinité de l’océan (Alk) est essentielle dans l’absorption de carbone atmosphérique et offre une capacité tampon contre l’acidification. Dans le cadre des prévisions de l’absorption de carbone par les océans et des impacts potentiels sur les écosystèmes, la représentation de l’Alk et du principal facteur de sa distribution dans l’océan profond, le cycle du carbonate de calcium (CaCO3), ont souvent été négligés. Cette thèse aborde le manque de considération accordé à l’Alk et au cycle du CaCO3 dans les modèles du système terrestre (ESM) et explore les implications pour le cycle du carbone
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au, vicky whiffin@sydneywater com, and Victoria S. Whiffin. "Microbial CaCO3 precipitation for the production of biocement." Murdoch University, 2004. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20041101.142604.

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The hydrolysis of urea by the widely distributed enzyme urease is special in that it is one of the few biologically occurring reactions that can generate carbonate ions without an associated production of protons. When this hydrolysis occurs in a calcium-rich environment, calcite (calcium carbonate) precipitates from solution forming a solid-crystalline material. The binding strength of the precipitated crystals is highly dependent on the rate of carbonate formation and under suitable conditions it is possible to control the reaction to generate hard binding calcite cement (or Biocement). The
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Derrien, Anne-Cécile. "Synthèse et caractérisation physico-chimique de géopolymères. Application cinétique de minéralisation de géopolymères et du biomatériau CaCO3 synthétique." Rennes 1, 2004. https://tel.archives-ouvertes.fr/tel-00007911.

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Les chirurgiens sont confrontés à des pertes de substance osseuse qui impliquent l'utilisation de biomatériaux synthétiques de comblement. Leur utilisation permet de limiter les réponses immunitaires et leur disponibilité est quasi illimitée. Notre travail a porté sur des géopolymères (Si/Al=21). Ces aluminosilicates synthétisés ont été associés à des phosphates de calcium. Chauffés à 500ʿC, les géopolymères présentent des pH de 7 et un bon compromis propriétés mécaniques/ porosité. Ces matériaux ont été étudiés in vitro et in vivo pour évaluer leur potentiel pour une utilisation comme biomaté
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Marquina, Edgar Alberto. "Use of Dynamic Mechanical Testing, WAXD and SEM Image Analysis to Study the Properties of Polypropylene/Calcium Carbonate Nanocomposites." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1269363578.

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Ouhenia, Salim. "Simulation des diagrammes de diffraction par la méthode combinée : application aux systèmes CaCO3." Caen, 2008. http://www.theses.fr/2008CAEN2080.

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Le développement considérable réalisé ces dix dernières années dans les techniques de diffraction sur des échantillons sous forme de poudre même très texturés (temps d’enregistrement raisonnable et très bonne résolution) et les progrès fascinants des moyens de calcul sur des machines individuelles rendent possible l’accès à des informations précises et avec des temps de calcul raisonnablement courts. Dans ce travail, nous avons appliqué l’analyse combinée basée sur la méthode de Rietveld pour étudier des échantillons de carbonates de calcium naturels de coquilles de certaines espèces de mollus
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Ramos, Ana Paula. "Modificação de superfícies metálicas por meio da deposição de filmes finos orgânicos LB/LbL e filmes híbridos contendo CaCO3." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/59/59138/tde-11092009-114534/.

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Muitos organismos vivos, tal como seus constituintes, são formados por sistemas químicos complexos que envolvem a interação entre compostos orgânicos e inorgânicos ligados química e/ou fisicamente. Nestes sistemas as matrizes orgânicas são geralmente compostas por macromoléculas como polissacarídeos e proteínas. Essas moléculas têm o papel de direcionar a nucleação e o crescimento da porção inorgânica. O uso de superfícies metálicas adequadas recobertas por este tipo de filme híbrido tem potencial aplicação em implantes de substituição óssea, no qual são requeridas superfícies quimicamente ine
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Tu, Zhenghuan. "Filtration dynamique de suspensions de CaCO3 et de solutions de surfactants." Compiègne, 2009. http://www.theses.fr/2009COMP1810.

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Ce mémoire décrit des essais de la micro et l'ultrafiltration dynamique effectués avec trois pilotes de laboratoire, un pilote MSD à disque membranaire rotatif sur deux arbres, un pilote à disque rotatif avec une membrane organique fixe, et un pilote à cylindre tournant avec une membrane concentrique. Le module MSD a été testé en microfiltration de suspensions de CaCO3 où nous avons comparé des membranes céramiques et organiques. Les essais ont confirmé l'importance du recouvrement des disques. Ensuite, nous avons appliqué le système de MSD aux traitements des effluents modèles de surfactants
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Vieira, Juliana Aparecida. "Biodeposição de CaCO3 em materiais cimentícios : contribuição ao estudo da biomineralização induzida por Bacillus subtilis." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/170983.

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A indústria da construção civil é conhecida como umas das atividades econômicas que causam os maiores impactos ambientais desde o processo de extração da matéria prima até a produção dos produtos, incluindo o transporte e manutenção do ambiente construído. A produção de um dos seus principais componentes, o cimento, é o maior contribuinte para a emissão de gases de efeito estufa, principalmente devido a queima de combustíveis fósseis. Por este motivo, pesquisas na área de biotecnologia sustentável são conduzidas para diminuir e até mitigar os efeitos danosos provocados pelos fatores que compõe
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Matahwa, Howard. "Chemical modification of polysaccharides with hydrophilic polymers for CaCO3 crystal growth modification and filler retention, for paper applications." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/1396.

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Thesis (PhD (Chemistry and Polymer Science))--Stellenbosch University, 2008.<br>Polysaccharides were modified with selected polymers via the grafting technique. Both anionic and cationic polysaccharides were prepared. Random and crosslinked graft copolymers were also prepared. The percentage grafting was determined by gravimetric analysis and results were confirmed by cross-polarization magic angle spinning carbon-13 nuclear magnetic resonance microscopy (CP/MAS 13C NMR). These modified biodegradable polymers were then used to flocculate precipitated calcium carbonate (PCC). The effects o
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Görgen, Sigrid. "Les mécanismes moléculaires de la biominéralisation intracellulaire de CaCO3 chez les cyanobactéries." Electronic Thesis or Diss., Sorbonne université, 2020. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2020SORUS158.pdf.

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La biominéralisation des carbonates de calcium est un processus répandu chez les bactéries. Cependant les mécanismes moléculaires sous-jacents restent mal compris. Récemment, la biominéralisation intracellulaire de phases amorphes de carbonate de calcium (iACC) a été découverte chez des cyanobactéries répandues environnementalement et phylogénétiquement. Un gène orphelin de fonction inconnue, nommé ccyA et codant pour une protéine nommée Calcyanine, a été identifié uniquement chez ces cyanobactéries. Ainsi mon travail de thèse a consisté à développer une approche génétique pour analyser la fon
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Libros sobre el tema "Calcium carbonate (CaCO3) cycle"

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The 2006-2011 World Outlook for Precipitated Calcium Carbonate (100 Percent CaCO3). Icon Group International, Inc., 2005.

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Parker, Philip M. The 2007-2012 World Outlook for Precipitated Calcium Carbonate (100 Percent CaCO3). ICON Group International, Inc., 2006.

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Capítulos de libros sobre el tema "Calcium carbonate (CaCO3) cycle"

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Siakotos, M., N. Tsianas, J. Malegos, et al. "Calcium Carbonate (CaCO3) as a Phosphate Binder in Patients on Renal Replacement Therapy." In New Therapeutic Strategies in Nephrology. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3884-4_100.

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Haugen, Malin, Bergit Brattekås, and Martin Fernø. "Multimodal Visualization of Calcium Carbonate (CaCO3) in the Pore Space of a Micromodel." In Album of Porous Media. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-23800-0_77.

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Masunaga, K. M., and T. Iyoda. "Powder wastes from concrete recycling as a sustainable source of calcium carbonate mineral admixture." In Life-Cycle of Structures and Infrastructure Systems. CRC Press, 2023. http://dx.doi.org/10.1201/9781003323020-399.

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Verrecchia, Eric P., Corinne Loisy, Olivier Braissant, and Anna A. Gorbushina. "The Role of Fungal Biofilm and Networks in the Terrestrial Calcium Carbonate Cycle." In Fossil and Recent Biofilms. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0193-8_25.

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Zulkefli, N., M. D. Ahmad, S. Mahzan, and E. M. Yusup. "The Development of Temporary Bone Scaffolds from High Density Polyethylene (HDPE) and Calcium Carbonate (CaCO3) for Biomedical Application." In Structural Integrity and Monitoring for Composite Materials. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6282-0_15.

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Pisias, Nicklas G., and Warren L. Prell. "Changes in Calcium Carbonate Accumulation in the Equatorial Pacific During the Late Cenozoic: Evidence from HPC Site 572." In The Carbon Cycle and Atmospheric CO2 : Natural Variations Archean to Present. American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm032p0443.

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Tapas, M. J., A. Yan, P. Thomas, C. Holt, and V. Sirivivatnanon. "Effect of Carbonation on the Microstructure and Phase Development of High-Slag Binders." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3330-3_22.

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AbstractThe drive for sustainable concrete production favors the use of high replacement levels of supplementary cementitious materials (SCMs) in the concrete mix. The use of SCMs such as fly ash and slag, however, although they improve the sustainability of concrete production as well as most concrete durability properties, increases the carbonation rate. Carbonation decreases the pH of the concrete pore solution, making the steel reinforcement susceptible to corrosion. The effect of carbonation is, however, not confined to the change in pH of the pore solution. We investigated changes in the microstructure and phases of high-slag binders due to carbonation. The carbonation resistance of mortars with 50 and 70% slag replacement were investigated at exposure conditions of 2%CO2, 50%RH, 23 °C. The carbonated and non-carbonated parts of the mortars were subjected to various characterization techniques to investigate the effect of carbonation on microstructure and phase development. Results confirmed the absence of portlandite in all the carbonated regions (“colorless” by phenolphthalein test, which indicated that the change in color of the phenolphthalein solution was due to the absence of portlandite to buffer the pH). Significant reduction in the amount of C-S-H, as well as increase in the amount of calcium carbonate, were been observed in the carbonated regions. Aragonite, a polymorph of CaCO3, was very prominent in all the carbonated mortars.
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Tropf, William J. "Calcium Carbonate, Calcite (CaCO3)." In Handbook of Optical Constants of Solids. Elsevier, 1997. http://dx.doi.org/10.1016/b978-012544415-6.50126-6.

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"Calcium Carbonate Cycle." In Ocean Biogeochemical Dynamics. Princeton University Press, 2013. http://dx.doi.org/10.2307/j.ctt3fgxqx.13.

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"Chapter 9: Calcium Carbonate Cycle." In Ocean Biogeochemical Dynamics. Princeton University Press, 2006. http://dx.doi.org/10.1515/9781400849079-010.

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Actas de conferencias sobre el tema "Calcium carbonate (CaCO3) cycle"

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Ness, Giulia, Ken Stuart Sorbie, Ali Hassan Al Mesmari, and Shehadeh Masalmeh. "The Impact of CCUS for Improved Oil Recovery on CaCO3 Scaling Potential of Produced Fluids." In SPE EuropEC - Europe Energy Conference featured at the 83rd EAGE Annual Conference & Exhibition. SPE, 2022. http://dx.doi.org/10.2118/209676-ms.

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Abstract Unlike other CCUS technologies, CO2 EOR has been widely implemented at a commercial level and on an industrial scale. In CO2 EOR, CO2 can be injected on its own or alternated with water in CO2 WAG (water-alternating-gas). Both applications have a direct impact on produced fluid compositions influencing GOR, water cut, CO2 concentration and consequently Ca2+, alkalinity and pH. The variation of fluid compositions has an inevitable impact on the scaling potential of produced fluids and on the resulting level of scale formation and its mitigation strategy. The aim of this work is to inve
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Hu, Shengfei, Wen Chen, and Huaxing Li. "Preparation and Properties of Nano-Calcium Carbonate Modified PVC Using Ultrasonic Irradiation." In 2007 First International Conference on Integration and Commercialization of Micro and Nanosystems. ASMEDC, 2007. http://dx.doi.org/10.1115/mnc2007-21449.

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PVC/nano-CaCO3 composites were prepared through ultrasonic irradiation. The optimum time of ultrasonic irradiation is 30 min. The fracture toughness of the nanocomposites was investigated by J-integral method based on the mechanical properties and morphology. Compared with corresponding nanocomposites and unfilled PVC, the prepared nanocomposites exhibit outstanding mechanical performances. The mechanical properties of spindly shaped CaCO3 filled PVC are better than these of the cubic nano-CaCO3, which are likely attributed to high aspect ratio of spindly shaped nano-CaCO3. In addition, the me
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Mavredaki, Eleftheria, and Anne Neville. "Prediction and Evaluation of Calcium Carbonate Deposition at Surfaces." In SPE International Oilfield Scale Conference and Exhibition. SPE, 2014. http://dx.doi.org/10.2118/spe-169796-ms.

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Abstract Mineral scaling is one of the main flow assurance problems facing the oil and gas sector and imposes severe constraints on the economic and safe operation of many fields. During the last decades, operators, in conjunction with the chemical manufacturers and oilfield service companies have focused on understanding, predicting and mitigating scale formation. Even though progress towards better management of scale formation continues, scale precipitation is still a significant flow assurance problem, caused by changes in temperature and pressure conditions or by mixing incompatible water
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Mohamed, Julie Juliewatty, Nurul Ainon Bakar, Siti Mariam Mat Nor, et al. "Calcium carbonate (CaCO3) contents influence the properties of mambong clay." In INTERNATIONAL CONFERENCE ON BIOENGINEERING AND TECHNOLOGY (IConBET2021). AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0078980.

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Ahab, Atika, Yulin Dayanti, Since Bausele, Nina Siti Aminah, and Ikah Ning Prasetiowati. "Analysis of calcium carbonate (CaCO3) particles from Achatina fulica shells." In II INTERNATIONAL CONFERENCE “SUSTAINABLE DEVELOPMENT: AGRICULTURE, VETERINARY MEDICINE AND ECOLOGY”. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0130940.

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Zou, Yong, Liang Zhao, Gongming Xin, and Lin Cheng. "Effect of Metallic Ion on the Formation of Calcium Carbonate Fouling." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22312.

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Calcium carbonate (CaCO3) is the most common fouling adhering on the surface of heat exchanger. But metallic ion in natural water could affect the crystalline type of calcium carbonate. In this study, the effect of sodium ion, magnesium ion and aluminum ion on crystalline type and morphology of CaCO3 were reported. The experimental results indicate that the addition of sodium ion has no obvious role for changing the crystalline type of CaCO3, only calcite was obtained and the lattice parameter of calcite has a little variation depending on the concentration of sodium ion. However, the addition
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Agofack, Nicolaine, Hoang Nguyen Hoang, Pierre Cerasi, Anna Stroisz, and Marcel Naumann. "Effect of Supercritical CO2 and Thermal Loading Cycles on Class G Well Cement Properties." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0439.

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ABSTRACT In carbon dioxide (CO2) capture and storage (CCS) technology, one of the goals is to prevent the injected CO2 from leaking back into the atmosphere. The leakage paths include fractures on the cement sheath sealing the injection well and/or reactivated faults going through the caprock. During a batch-wise injection of CO2, the wellbore is submitted to thermal loading cycles. After injection, the near-well materials, including cement sheath, are exposed to a CO2-rich environment, especially in the vicinity of the reservoir. These thermal cycles (TC) and exposure environment can affect t
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8

Liu, Zilong, Hayati Onay, Fengzhi Guo, and Pegah Hedayati. "Electrochemically Assisted Deposition of Calcium Carbonate Surfaces for Anionic Surfactant Adsorption: Implications for Enhanced Oil Recovery." In SPE International Conference on Oilfield Chemistry. SPE, 2021. http://dx.doi.org/10.2118/204283-ms.

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Abstract Surface roughness of rocks had a significant influence on surfactant adsorption in enhanced oil recovery (EOR), both in terms of the total amount adsorbed as well as of the kinetics of adsorption. Combining electrochemical techniques and quartz crystal microbalance with dissipation monitoring (QCM) into one analysis setup opens up new avenues for depositing model rock surfaces and investigating the adsorption behavior. Using electrochemically assisted deposition, uniform and well-covered metal-CaCO3 sensors were obtained to simulate rough carbonate rocks and characterized by scanning
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9

Langer, G., J. Kwo, and D. Murano. "New Coating Solutions for Biomedical Applications." In ITSC2002, edited by C. C. Berndt and E. Lugscheider. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2002. http://dx.doi.org/10.31399/asm.cp.itsc2002p0192.

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Abstract Crystallized calcium carbonate, CaCO3, is a mineral phase that occurs in nature as aragonite. It is well known that CaCO3 shows excellent chemical interaction and intensive binding in direct contact to bone structures. This paper discusses the development of a plasma spraying process that shows promise for producing dense calcium carbonate layers with good adhesion properties. Tests reveal that the resulting coatings are fully biocompatible and have faster resorption times than plasma sprayed hydroxyapatite. Paper includes a German-language abstract.
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10

Putro, Triswantoro, and Endarko. "The influence of electron discharge and magnetic field on calcium carbonate (CaCO3) precipitation." In THE 3RD INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS SCIENCE AND TECHNOLOGY (ICAMST 2015). Author(s), 2016. http://dx.doi.org/10.1063/1.4945521.

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Informes sobre el tema "Calcium carbonate (CaCO3) cycle"

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Antoun, Tarabay H., and Donald R. Curran. Wave Propagation in Intact and Jointed Calcium Carbonate (CaCO3) Rock. Defense Technical Information Center, 1996. http://dx.doi.org/10.21236/ada305457.

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