We consider a general model for the complex phenomenon of wax deposition in crude oils. Wax is present either as dissolved in oil or suspended as a crystallized phase. The solubility of wax decreases very sharply with temperature. The presence of a thermal gradient induces both a dynamics of transfer from dissolved to solid phase and the formation of a gel--like deposit layer at the cold wall. The process is described including different stages of evolution: we start from the fully saturated system, then, after the onset of an unsaturated front we deal with the simultaneous presence of saturated and unsaturated regions up to the complete unsaturation of the system.

A General model for wax diffusion in crude oils under thermal gradient / E. COMPARINI; F.TALAMUCCI. - STAMPA. - (2007), pp. 259-270. [10.1142/9789812709394_0023]

A General model for wax diffusion in crude oils under thermal gradient

COMPARINI, ELENA;TALAMUCCI, FEDERICO
2007

Abstract

We consider a general model for the complex phenomenon of wax deposition in crude oils. Wax is present either as dissolved in oil or suspended as a crystallized phase. The solubility of wax decreases very sharply with temperature. The presence of a thermal gradient induces both a dynamics of transfer from dissolved to solid phase and the formation of a gel--like deposit layer at the cold wall. The process is described including different stages of evolution: we start from the fully saturated system, then, after the onset of an unsaturated front we deal with the simultaneous presence of saturated and unsaturated regions up to the complete unsaturation of the system.
2007
9789812709394
Series on Advances in Mathematics for Applied Sciences - Vol. 75 APPLIED AND INDUSTRIAL MATHEMATICS IN ITALY II Selected Contributions from the 8th SIMAI Conference
259
270
E. COMPARINI; F.TALAMUCCI
File in questo prodotto:
File Dimensione Formato  
CT2007.pdf

Accesso chiuso

Tipologia: Versione finale referata (Postprint, Accepted manuscript)
Licenza: Tutti i diritti riservati
Dimensione 568.63 kB
Formato Adobe PDF
568.63 kB Adobe PDF   Richiedi una copia

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/259994
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 2
social impact