Assessing the homogeneity of powder mixtures by on-line electrical capacitance

Chemical Engineering and Processing: Process Intensification

Volumn 44, Issue 2, 2005, Pages 303-313

  Ehrhardt, N ^a   Montagne, M ^a   Berthiaux, H ^a   Dalloz Dubrujeaud, B ^b   Gatumel, C ^a  

^a UMR CNRS 2392   (France)

^b AIX MARSEILLE UNIVERSITÉ   (France)

Author keywords

Capacitance; Homogeneity; Powder mixing

Indexed keywords

CAPACITANCE; ELECTRODES; MIXTURES; PERMITTIVITY; VOLUMETRIC ANALYSIS;

DRUM MIXERS; PARTICULATE SOLIDS; POWDER MIXTURES;

POWDERS;

HOMOGENEOUS MEDIUM; MIXTURE; POWDER;

EID: 5444262716     PISSN: 02552701     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.cep.2004.03.016     Document Type: Conference Paper

References (31)

1. F.J. Muzzio, T. Shinbrot, B.J. Glasser, Powder technology in the pharmaceutical industry: the need to catch up fast, Powder Technol. 124 (2002) 1-7.
2. J. Berman, A. Schoeneman, J.T. Shelton, Unit dose sampling: a tale of two thieves, Drug Dev. Ind. Pharm. 22 (11) (1996) 1121-1132.
3. F.J. Muzzio, P. Robinson, C. Wightman, D. Brone, Sampling practices in powder blending, Int. J. Pharm. 155 (1997).
4. S. Massol-Chaudeur, Caractérisation de l'état de mélange de poudres - cas de mélanges faiblement dosés, Ph.D. Thesis, INPL Nancy, 2000.
5. J. Lister, Forward to special edition of powder technology from "Control of Particulate Processes VI", Powder Technol. 124 (2002) 175.
6. T. Wang, Z.J. Lin, C.M. Zhu, D.C. Liu, S.X. Saxena, Particle velocity measurements in a circulating fluidized bed, AIChE J. 39 (8) (1993) 1406-1410.
7. J. Aguillon, K. Shakourzadeh, P. Guigon, A new method for local solid concentration measurements in circulating fluidized bed, Powder Technol. 86 (1996) 251-255.
8. J.J. Nieuwland, R. Meijer, J.A.M. Kuipers, W.P.M. van Swaaij, Measurements of solids concentration and axial solids velocity in gas-solid two phase flows, Powder Technol. 87 (1996) 127-139.
9. C.F. Harwood, R. Davies, M. Jackson, E. Freeman, An optic probe for measuring the mixture composition of powders, Powder Technol. 5 (1971/1972) 77-80.
10. R. Weinekötter, L. Reh, Characterization of particulate mixtures by in-line measurements, Part. Part. Syst. Charact. 11 (1994) 284-290.
11. D. Steinmetz, B. Hocine, M. Poux, C. Laguérie, Analyse du mélange de poudres en fluidisation gazeuse à l'aide de la méthode de défluidisation et par capteur à fibre optique, Powder Technol. 89 (1996) 139-147.
12. O. Berntsson, L.G. Danielsson, B. Lagerholm, S. Folestad, Quantitative in-line monitoring of powder blending by near infrared reflection spectroscopy, Powder Technol. 123 (2002) 185-193.
13. T. Dyakowski, L.F.C. Jeanmeure, A.J. Jaworski, Applications of electrical tomography for gas-solids and liquids-solids flows - a review, Powder Technol. 112 (2000) 174-192.
14. K.L. Ostrowski, S.P. Luke, MA. Benett, R.A. Williams, Application of capacitance electrical tomography for on-line and off-line analysis of flow pattern in horizontal pipeline of pneumaic conveyer, Chem. Eng. J. 77 (2000) 43-50.
15. E. Brunazzi, A. Paglianti, S. Pintus, A capacitance probe and a new model to identify and predict the capacity of columns equipped with structured packings, Ind. Eng. Chem. Res. 40 (2001) 1205-1212.
16. W. Warsito, L.S. Fan, Measurement of real-time flow structures in gas-liquid and gas-liquid-solid flow systems using electrical capacitance tomography (ECT), Chem. Eng. Sci. 56 (2001) 6455-6462.
17. T. Loser, M. Geweke, D. Mewes, Measuring the Phase Distribution in a Transient Gas-Solid Flow Using Capacitance Tomography. 3rd Israeli Conference for Conveying and Handling of Particulate Solids, Dead Sea, Israel, 2000, pp. 15.11-15.15.
18. T. Dyakowski, A.J. Jaworski, Application of tomographic techniques for imaging fluidized beds, 3rd Israeli Conference for Conveying and Handling of Particulate Solids, Dead Sea, Israel, 2000, pp. 15.1-15.10.
19. A. Kantzas, Computation of holdups in fluidized and trickle beds by computer-assisted tomography, AIChE J. 40 (7) (1994) 1254-1261.
20. D. Newton, M. Fiorentino, G.B. Smith, The application of X-ray imaging to the developments of fluidized bed processes, Powder Technol. 120 (2001) 70-75.
21. N. Sommier, P. Porion, P. Evesque, B. Leclerc, P. Tchoreloff, G. Couarraze, Magnetic resonance imaging investigation of the mixing-segregation process in a pharmaceutical blender, Int. J. Pharm. 222 (2001) 243-258.
22. C.K. Lai, D. Holt, J.C. Leung, C.L. Cooney, G.K. Raju, P. Hansen, Real-time noninvasive monitoring of dry powder blend homogeneity, AIChE J. 47 (11) (2001) 2618-2622.
23. J. Villermaux, Génie de la réaction chimique - Conception et fonctionnement des réacteurs, Tec&Doc, Lavoisier ed, 1984, p. 204.
24. P.V. Danckwerts, Continuous flow systems: distribution of residence times, Chem. Eng. Sci. 2 (1953) 1-11.
25. P.V. Danckwerts, Theory of mixtures and mixing, Res. (London) 6 (1953) 355-361.
26. J. Gyenis, Assessment of mixing mechanisms on the basis of concentration patterns, Chem. Eng. Process. 38 (1999) 655-674.
27. R.C. Waterfall, W.W. Loh, Arko, J. Covy, G.P. Lucas, Electrical tomography for multiphases flow applications, 3rd Israëli Conference for Conveying and Handling of Particulate Solids, Dead Sea, Israel, 2000, pp. 17-25.
28. UMIST, Industrial Process Tomography at UMIST, http://www.tomography. umist.ac.uk.
29. D.A.G. Bruggeman, Ann. Phys. (Leipzig) 24 (1935) 636.
30. T. Guillot, Contribution à la modélisation des propriétés électromagnétiques des mélanges aléatoires du type diélectrique/conducteur, ONERA, Note technique 3, 1992.
31. S. Muerza, H. Berthiaux, S. Massol-Chaudeur, G. Thomas, A dynamic study of static mixing using on-line image analysis, Powder Technol. 128 (2002) 195-204.