Modelling of a Simulated Moving Bed in case of non-ideal hydrodynamics - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Chemical Engineering Science Année : 2016

Modelling of a Simulated Moving Bed in case of non-ideal hydrodynamics

Résumé

The one-dimensional hydrodynamic model proposed by Gomes et al. (2015) is coupled with adsorption and validated by comparing the concentration profiles of this one-dimensional model with those given by the CFD model of one adsorption column including obstacles as distribution network and beams. This one-dimensional model is capable of predicting the CFD results for different mass transfer rates, while the traditional dispersed plug flow (DPF) model is accurate for slow mass transfer rates only. The model proposed by Gomes et al. (2015) is capable of reproducing the adsorber Residence Time Distribution (RTD) while dissociating the selective zones from the non-selective ones. It is based on the CFD techniques developed by Liu and Tilton (2010) and Liu (2012) that transport the moments of the fluid age distribution and consequently calculate the degree of mixing (Danckwerts, 1958 and Zwietering, 1959). Then, this new model is integrated in a cyclic solver in order to perform Simulated Moving Bed (SMB) studies. The new model provides a detailed hydrodynamic description, which appears to be mandatory especially when mass transfer exchanges are fast, without undergoing the prohibitive simulation times of CFD models.
Fichier principal
Vignette du fichier
modelling.pdf (960.37 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-01408721 , version 1 (05-12-2016)

Identifiants

Citer

Leonel Fangueiro Gomes, Frédéric Augier, Damien Leinekugel-Le-Cocq, Ivana Vinkovic, S Simoëns. Modelling of a Simulated Moving Bed in case of non-ideal hydrodynamics. Chemical Engineering Science, 2016, 153, pp.188 - 198. ⟨10.1016/j.ces.2016.07.027⟩. ⟨hal-01408721⟩
239 Consultations
371 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More