Study on dissociation behaviors of methane hydrate in porous media based on experiments and fractional dimension shrinking-core model / Xiao-Sen Li in Industrial & engineering chemistry research, Vol. 50 N° 13 (Juillet 2011)  

Study on dissociation behaviors of methane hydrate in porous media based on experiments and fractional dimension shrinking-core model [texte imprimé] / Xiao-Sen Li, Auteur ; Yu Zhang, Auteur . - 2011 . - pp. 808-812.
Chimie industrielle
Langues : Anglais (eng)
in Industrial & engineering chemistry research > Vol. 50 N° 13 (Juillet 2011) . - pp. 808-812

Mots-clés :	hydrate fractal theory porous media dissociation
Résumé :	The dissociation process of gas hydrate was regarded as a gas-solid reaction without solid production layer when the temperature was above the zero centigrade. Based on the shrinking core model and the fractal theory, a fractional dimension dynamical model for gas hydrate dissociation in porous sediment was established. The new approach of evaluating the fractal dimension of the porous media was also presented. The fractional dimension dynamical model for gas hydrate dissociation was examined with the previous experimental data of methane hydrate and carbon dioxide hydrate dissociations, respectively. The calculated results indicate that the fractal dimensions of porous media acquired with this method agree well with the previous study. With the absolute average deviation (AAD) below 10%, the present model provided satisfactory predictions for the dissociation process of methane hydrate and carbon dioxide hydrate.
DEWEY :	660
ISSN :	0888-5885
En ligne :	http://cat.inist.fr/?aModele=afficheN&cpsidt=21773523