A new approach of experimental and modelling study of mixed gas hydrates under non-equilibrium conditions

• Main Authors: MAGHSOODLOO , Saheb, Bouillot, Baptiste, Herri, Jean - Michel
• Other Authors: Département Procédés pour l'Environnement et Géoressources (PEG-ENSMSE), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom Paris (IMT)-Institut Mines-Télécom Paris (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom Paris (IMT)-Institut Mines-Télécom Paris (IMT), Laboratoire Georges Friedel (LGF-ENSMSE), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), SFGP (Société Française de Génie des Procédés), EFCE ( European Federation of Chemical Engineering), LRGP (Laboratoire Réactions et Génie des Procédés), CNRS (Centre National de la Recherche Scientifique), Université de Lorraine
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2017
• Subjects: gas composition; Crystallization rates; Experimental data; Gas hydrates; Hydrate formation; [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering; Methane hydrate
• Online Access: https://hal.archives-ouvertes.fr/hal-01655059; https://hal.archives-ouvertes.fr/hal-01655059/document; https://hal.archives-ouvertes.fr/hal-01655059/file/S%20Maghsoodloo%20poster%20SFGP%202017.pdf

Livre des Résumés - Thème 1: Le génie des procédés au service de la transition énergétique - Pyrolyse et gazéification International audience Although clathrate hydrate formation in the oil and gas industry, from extraction to transportation, is a crucial issue, several applications of clathrate hydrates have been recently investigated, like water treatment, carbon capture and storage, air conditioning, or even planetary science. Moreover, enormous amounts of methane hydrate have been found in the world’s oceans and polar regions. The amount of buried methane hydrate is estimated to exceed the volume of all known conventional gas resources ( Sloan and Koh , 2007). Hence, it is obvious that studying the thermodynamics and the crystallization mechanisms of clathrate hydrates is really inevitable to investigate gas hydrate phenomena. The determination of the gas composition in hydrate phase, as well as its volume, is also technical challenges due to lack of data in the literature. Therefore, in this work, several experiments were performed to obtain precious experimental data, such as hydrate composition and volume. Our “GasHyDyn” group has recently found out that the composition of gas hydrate is sensitive to the crystallization conditions ( Le Quang et al ., 2015). Hence in this work, one of the objectives was to find out the composition of gas in hydrate phase during the crystallization and final state and crystallization rates. Experiments were performed in two batch reactors. Online gas chromatography, connected to the experimental set-up, and an off-line ion-chromatography were used to measure the gas compositions in gas and liquid phases, respectively. By applying mass balance based on these data, the gas compositions in hydrate phase and hydrate volume can be calculated. During the last decade, our GasHyDyn team has also measured equilibrium data for many gas mixtures ( Herri and Chassefière , 2012; Le Quang et al. , 2015), and this document adds new data involving propane based on two different ...