High pressure DSC characterization of clathrate and semi-clathrate gas hydrates for potential industrial applications

Abstract : Gas hydrates are ice-like compounds in which gas molecules, mostly light hydrocarbons, acid gases (CO2, H2S), N2, or H2, are entrapped into polyhedral cavities formed by hydrogen-bonded water molecules. Those compounds have long been studied in relation with flow assurance and safety issues in the oil and gas industry, where their occurrence is a risk that must be controlled and, possibly, avoided. More recently, industrial applications of gas hydrates were proposed in various fields, such as gas storage and transport, gas separation, water purification, or refrigeration engineering. The potential development of such technologies is regarded as promising, due to the low cost, environmental inocuity and total reusability of the main reactant involved, namely water. This prospect has sparked a new demand for measurement and modelling of the properties of these structures. Thermodynamic and thermo physical properties, as well as formation kinetics of gas hydrates are of particular interest for the design, economical assessment, and up scaling of hydrate-based processes. Pressure-controlled DSC has been used extensively to characterize different types of hydrates (1-5). Accurate methods were developed for that purpose (6) and applied to a variety of gas + water + additives systems (1-5, 7, 8). The numerous data acquired have been used to develop rigorous thermodynamic models (9-11) that are capable of predicting thermodynamic limits of stability and dissociation enthalpies of those structures, thus providing useful tools for future process design. References 1. M.C. Martinez, D. Dalmazzone, W. Fürst, A. Delahaye, L. Fournaison. AIChE J., 54 (2008) 1088 2. D. Dalmazzone, N. Hamed, C. Dalmazzone. Chem. Eng. Sci., 64 (2009) 2020 3. J. Deschamps, D. Dalmazzone. J. Therm. Anal. Calorim., 98 (2009) 113 4. N. Mayoufi, D. Dalmazzone, W. Fürst, A. Delahaye, L. Fournaison. J. Chem. Eng. Data, 55 (2010) 1271 5. N. Mayoufi, D. Dalmazzone, A. Delahaye, P. Clain, L. Fournaison, W. Fürst. J. of Chem. Eng. Data, 56 (2011) 2987 6. W. Lin, D. Dalmazzone, W. Fürst, A. Delahaye, L. Fournaison, P. Clain. J. Chem. Thermody., 61 (2013) 132 7. A. Karimi, O. Dolotko, D. Dalmazzone. Fluid Phase Equilib., 361 (2014) 175. 8. W. Lin, D. Dalmazzone, W. Fürst, A. Delahaye, L. Fournaison, P. Clain. Fluid Phase Equilib., 372 (2014), 63 9. A. Fukumoto, P. Paricaud, D. Dalmazzone, W. Bouchafaa, T. T.-S. Ho, W. Fürst. J. Chem. Eng. Data, 59 (2014) 3193 10. A. Fukumoto, D. Dalmazzone, P. Paricaud, W. Fürst. J. Chem. Eng. Data, 60 (2015) 343 11. A. Fukumoto, L. P. Sales Silva, P. Paricaud, D. Dalmazzone, W. Fürst. Int. J. Hydrogen Energ., 40 (2015) 9254
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Submitted on : Friday, May 20, 2016 - 4:18:18 PM
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  • HAL Id : hal-01319354, version 1

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Didier Dalmazzone, Patrice Paricaud, Luiz Paulo Sales Silva. High pressure DSC characterization of clathrate and semi-clathrate gas hydrates for potential industrial applications. 47th French Conference on Calorimetry and Thermal Analysis, Université de Pau et des Pays de l'Adour, May 2016, Anglet, France. pp.15. ⟨hal-01319354⟩

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