Modelling of CO2 Frost Formation and Growth on a Flat Plate - Mines Paris Accéder directement au contenu
Article Dans Une Revue Chemical Engineering Transactions Année : 2019

Modelling of CO2 Frost Formation and Growth on a Flat Plate

Sylvain Haddad
  • Fonction : Auteur
  • PersonId : 1061216
Chakib Bouallou

Résumé

Cryogenic separation is one of many CO2 capture technologies developed for upgrading biogas or for CO2 separation from flue gases. In order to better understand the CO2 frosting phenomena, in this paper, CO2 frost growth is modelled considering deposition on a flat plate. The frost layer is modelled as a porous medium with heat and mass transfer occurring on the surface and within the frost layer. Simulations are conducted for CO2 separation from CH4+CO2 (biogas) and N2+CO2 (flue gas) mixtures, frost thickness and density were assessed. The modelling results are compared to experimental data found in literature and it is for the first time possible to have detailed and accurate model of heat and mass transfer for CO2 frosting. Multiple heat transfer correlations were assessed and improvement of accuracy between calculated and experimental results has reached 80 %. For CH4+CO2 mixtures, a sensitivity study is carried out. The drivers of frost formation are mainly plate temperature and inlet CO2 concentration, and to lesser extent the gas temperature.
Fichier principal
Vignette du fichier
92adf0d1c224651e3597b5dd24c4083b3373.pdf (1.03 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02414709 , version 1 (16-12-2019)

Identifiants

Citer

Sylvain Haddad, Rodrigo Rivera-Tinoco, Chakib Bouallou. Modelling of CO2 Frost Formation and Growth on a Flat Plate. Chemical Engineering Transactions, 2019, ⟨10.3303/CET1976112⟩. ⟨hal-02414709⟩
110 Consultations
120 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More