Diffusion during the supercritical drying of silica gels

Drying Technology

Volumn 24, Issue 9, 2006, Pages 1121-1125

  Masmoudi, Yasmine ^a   Rigacci, Arnaud ^a   Ilbizian, Pierre ^a   Cauneau, Francois ^a   Achard, Patrick ^a  

^a PSL RESEARCH UNIVERSITY   (France)

Author keywords

Effective diffusion coefficient; Silica aerogels; Super critical CO2 drying

Indexed keywords

AEROGELS; CARBON DIOXIDE; DIFFUSION; MASS TRANSFER; SILICA GEL;

SILICA AEROGELS; SUPER-CRITICAL DRYING; SUPERCRITICAL WASHING STEP;

DRYING;

AEROGELS; CARBON DIOXIDE; DIFFUSION; DRYING; MASS TRANSFER; SILICA GEL;

EID: 33747082980     PISSN: 07373937     EISSN: 15322300     Source Type: Journal    
DOI: 10.1080/07373930600778270     Document Type: Conference Paper

References (20)

1. Pajonk, G.M.; Elaloui, E.; Chevalier, B.; Begag, R. Optical transmission properties of silica aerogels prepared from polyethoxidisiloxanes. Journal of Non-Crystalline Solids 1997, 210, 224-231.[CSA]
2. Tewari, P.H.; Hunt, A.J.; Lofftus, K.D.Advances in production of transparent silica aerogels for window glazings. In Aerogels; Fricke, J., Ed.; Springer: New york, 1985; 31-37.
3. Jensen, K.I.; Schultz, J.M.; Kristiansen, F.H. Development of windows based on highly insulating aerogel glazings. Journal of Non-Crystalline Solids 2004, 350, 351-357. [CSA][CROSSREF]
4. Bisson, A.; Rigacci, A.; Lecomte, D.; Rodier, E.; Achard, P. Drying of silica gels to obtain aerogels: Phenomenology and basic techniques. Drying Technology 2003, 21, 593-628. [CSA][CROSSREF]
5. Pajonk, G.M.; Elaloui, E.; Achard, P.; Chevalier, B.; Chevalier, J.L.; Durant, M. Physical properties of silica gels and aerogels prepared with new polymeric precursors. Journal of Non-Crystalline Solids 1995, 186, 1-8. [CSA][CROSSREF]
6. Wawrzyniak, P.; Rogacki, G.; Bartczak, Z. Binary diffusion ethanol-liquid CO2 during low temperature supercritical drying of the silica gel. In Proceedings of the 10th International Drying IDS'96-Drying'96, Krakow, Poland, 1996; 1337-1342.
7. Delhomme, E.; Chartier, T.; Baumard, J.F.Extraction de paraffines d'un milieu poreux. 3eme Colloque Sur Les Fluides Supercritiques, Applications Aux Produits Naturels, A.I.P.F.S.: Grasse: France, 1996; 211-218.
8. Guilbot, P.; Valtz, A.; Legendre, H.; Richon, D. Rapid on line sampler-injector: A reliable tool for HT-HP sampling and on line GC analysis. Analusis 2000, 28, 426-431. [CSA][CROSSREF]
9. Einarsrud, M.-A.; Nilsen, E.; Rigacci, A.; Pajonk, G.M.; Buathier, S.; Valette, D.; Durant, M.; Chevalier, B.; Nitz, P.; Eherburger-Dolle, F. Strengthening of silica gels and aerogels washing and aging processes. Journal of Non-Crystalline Solids 2001, 285, 1-7. [CSA][CROSSREF]
10. Crank, J. The Mathematics of Diffusion; Clarendon Press: Oxford, 1975.
11. Nelder, J.A.; Mead, R. A simplex method for function minimization. Computer Journal 1965, 7, 308-313. [CSA]
12. Pirard, R. Etude de la texture des matériaux hyperporeux par porosimétrie mercure. Ph.D. diss., Université de Liège, Faculté des Sciences Appliquées, Liège, Belgium, 2000.
13. 2. Drying Technology 1996, 14 (2), 259-270. [CSA]
14. Wawrzyniak, P.; Rogacki, G.; Pruba, J.; Bartczak, Z. Effective diffusion coefficient in the low temperature process of silica aerogel production. Journal of Non-Crystalline Solids 2001, 285, 50-56. [CSA][CROSSREF]
15. 2 in silica aerogels. Journal of Non-Crystalline Solids 1997, 221, 163-169. [CSA][CROSSREF]
16. Krischer, O.; Kröll, K. Die wissenschaftlichen Grundlagen der Trocknungstechnik; Springer: Berlin, 1956.
17. Reid, R.C.; Prausnitz, J.M.; Poling, B.E. The Properties of Gases & Liquids; McGraw-Hill: New York, 1987.
18. Perry, R.H.; Green, D.W. Perry's Chemical Engineering's Handbook; McGraw-Hill: New York, 1997.
19. 2 by chromatography analysis. Chemical Engineering Journal 2003, 93, 163-172. [CSA][CROSSREF]
20. Hirashima, H.; Kojima, C.; Kohama, K.; Imai, H.; Balek, V.; Hamada, H.; Inaba, M. Oxide aerogel catalysts. Journal of Non-Crystalline Solids 1998, 225, 153-156. [CSA][CROSSREF]