Formation and Dissociation of Hydrate Plugs in a Water in Oil Emulsion

• Main Authors: FIDEL-DUFOUR, Annie, Nguyen-Hong, Duc, Herri, Jean-Michel
• Other Authors: 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), Département Géochimie, environnement, écoulement, réacteurs industriels et cristallisation (GENERIC-ENSMSE), Institut Mines-Télécom Paris (IMT)-Institut Mines-Télécom Paris (IMT)-SPIN, Laboratoire des Procédés en Milieux Granulaires (LPMG-EMSE), Institut Mines-Télécom Paris (IMT)-Institut Mines-Télécom Paris (IMT)-Centre National de la Recherche Scientifique (CNRS), Total Fina Elf
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2002
• Subjects: methane hydrate plugs; formation; dissociation; semi-batch reactor; heptane emulsion; [SPI.OTHER]Engineering Sciences [physics]/Other; Methane hydrate
• Online Access: https://hal.archives-ouvertes.fr/hal-00126008; https://hal.archives-ouvertes.fr/hal-00126008/document; https://hal.archives-ouvertes.fr/hal-00126008/file/AFD-DNG-JMH-Japon-02.pdf

4 pages In this paper, we present experimental results of the formation and dissociation of methane hydrate plugs in a semi-batch reactor. The plugs are done from water in heptane emulsion (water content from 30 %). The experimental results shows that the formation rate and dissociation rate are controlled by the heat transfer at the wall of the reactor. An unexpected behaviour is observed as the temperature decreases under the 0°C temperature during dissociation and seems to form ice which slows down the dissociation rate.