Asymptotic modelling of crystallisation in two-layer systems. Application to methane hydrate crystallization

• Main Authors: Cournil, Michel, 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), 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), Département Géochimie, environnement, écoulement, réacteurs industriels et cristallisation (GENERIC-ENSMSE), Institut Mines-Télécom Paris (IMT)-Institut Mines-Télécom Paris (IMT)-SPIN, Angelo Chianese
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2002
• Subjects: methane hydrate crystallization; gas-liquid crystallization; two-layer systems; two-film model; differential equation system; crystal size distribution; stirring rate; [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering; Methane hydrate
• Online Access: https://hal.science/hal-00625647; https://hal.science/hal-00625647/document; https://hal.science/hal-00625647/file/MC-ISIC-15a-Orig.pdf

International audience The problem of gas-liquid crystallization is re-visited in the framework of a two-film model. The moments of the crystal size distribution can be derived from a differential equation system. Instead of a numerical solution, we present here a general procedure to express analytically the asymptotic behaviour of the physical system. Thanks to this formulation, influence of different parameters can be easily identified and validated on experimental data which mainly concern methane hydrate crystallization.