Three-dimensional analysis of trickle flow hydrodynamics: Computed tomography image acquisition and processing

Chemical Engineering Science

Volumn 62, Issue 24, 2007, Pages 7233-7244

  van der Merwe, Werner ^a   Nicol, Willie ^a   de Beer, Frikkie ^b  

^a UNIVERSITY OF PRETORIA   (South Africa)

^b AAR   (South Africa)

Author keywords

Hydrodynamic multiplicity; Hydrodynamics; Imaging; Multiphase flow; Tomography; Trickle flow

Indexed keywords

ERROR ANALYSIS; HYDRODYNAMICS; IMAGE ANALYSIS; TOMOGRAPHY;

HYDRODYNAMIC MULTIPLICITY; TRICKLE FLOW;

MULTIPHASE FLOW;

ERROR ANALYSIS; HYDRODYNAMICS; IMAGE ANALYSIS; MULTIPHASE FLOW; TOMOGRAPHY;

EID: 36049047984     PISSN: 00092509     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ces.2007.08.009     Document Type: Article

References (20)

1. Anadon L.D., Lim M.H.M., Sederman A.J., and Gladden L.F. Hydrodynamics in two-phase flow within porous media. Magnetic Resonance Imaging 23 (2005) 291-294
2. Basavaraj M.G., Gupta G.S., Naveen K., Rudolph V., and Bali R. Local liquid holdups and hysteresis in a 2-D packed bed using X-ray radiography. A.I.Ch.E. Journal 51 (2005) 2178-2189
3. Boyer C., and Fanget B. Measurement of liquid flow distribution in trickle bed reactor of large diameter with a new gamma-ray tomographic system. Chemical Engineering Science 57 (2002) 1079-1089
4. Canny J. A computational approach to edge detection. IEEE Transactions in Pattern Analysis and Machine Intelligence 8 (1986) 679-698
5. Chaouki J., Larachi F., and Dudukovic M.P. Noninvasive tomographic and velocimetric monitoring of multiphase flow. Industrial & Engineering Chemistry Research 36 (1997) 4476-4503
6. De Beer F.C. Characteristics of the neutron/X-ray tomography system at the SANRAD facility in South Africa. Nuclear Instruments & Methods in Physics Research A 542 (2005) 1-8
7. De Klerk A. Voidage variation in packed beds at small column to particle diameter ratio. A.I.Ch.E. Journal 49 (2003) 2023-2029
8. Dierick M., Masschaele B., and Van Hoorebeke L. Octopus, a fast and user-friendly tomographic reconstruction package developed in LabView®. Measurement Science & Technology 15 (2004) 1366-1370
9. Dudukovic M.P. Catalyst effectiveness factor and contacting efficiency in trickle-bed reactors. A.I.Ch.E. Journal 23 (1977) 940-944
10. Feldkamp L.A., Davis L.C., and Kress J.W. Practical cone-beam algorithm. Journal of the Optical Society of America 1 (1984) 612-619
11. Gladden L.F., Lim M.H.M., Mantle M.D., Sederman A.J., and Stitt E.H. MRI visualisation of two-phase flow in structured supports and trickle-bed reactors. Catalysis Today 79-80 (2003) 203-210
12. Iliuta I., Larachi F., and Grandjean B.P.A. Residence time, mass transfer and back-mixing of the liquid in trickle flow reactors containing porous particles. Chemical Engineering Science 54 (1999) 4099-4109
13. Loudon D.S., van der Merwe W., and Nicol W. Multiple hydrodynamic states in trickle flow: quantifying the extent of pressure drop, liquid holdup and gas-liquid mass transfer variation. Chemical Engineering Science 61 (2006) 7551-7562
14. Lutran P.G., Ng K.M., and Delikat E.P. Liquid distribution in trickle beds. An experimental study using computer-assisted tomography. Industrial & Engineering Chemistry Research 30 (1991) 1270-1280
15. Pironti F., Mizrahi D., Acosta A., and Gonzalez-Mendizabal D. Liquid-solid wetting factor in trickle-bed reactors: its determination by a physical method. Chemical Engineering Science 54 (1999) 3793-3800
16. Sederman A.J., and Gladden L.F. Magnetic resonance imaging as a quantitative probe of gas-liquid distribution and wetting efficiency in trickle-bed reactors. Chemical Engineering Science 56 (2001) 2615-2628
17. Toye D., Marchot P., Crine M., Pelsser A.-M., and L'Homme G. Local measurements of void fraction and liquid holdup in packed columns using X-ray computed tomography. Chemical Engineering and Processing 37 (1998) 511-520
18. Van der Merwe W., Nicol W., and De Beer F.C. Internal wetting dynamics of alpha- and gamma-alumina catalyst spheres using X-ray computed tomography. South African Journal of Science 102 (2006) 585-588
19. Van der Merwe W., Nicol W., and De Beer F.C. Trickle flow distribution and stability by X-ray radiography. Chemical Engineering Journal 132 (2007) 47-59
20. Wu Y., Al-Dahhan M.H., Khadilkar M.R., and Dudukovic M.P. Evaluation of trickle bed reactor models for a liquid limited reaction. Chemical Engineering Science 51 (1996) 2721-2725