Measuring flow velocity and uniformity in a model batch digester using electrical resistance tomography

Canadian Journal of Chemical Engineering

Volumn 85, Issue 1, 2007, Pages 55-64

  Lee, Q F ^a   Bennington, C P J ^a  

^a UNIVERSITY OF BRITISH COLUMBIA   (Canada)

Author keywords

Batch digesters; Electrical resistance tomography; Kraft pulping; Liquor flow uniformity

Indexed keywords

APPROXIMATION THEORY; CHEMICAL REACTORS; ELECTRIC RESISTANCE; PIXELS; REYNOLDS NUMBER; TOMOGRAPHY;

ELECTRICAL RESISTANCE TOMOGRAPHY; INTERSTITIAL FLOW VELOCITIES; LIQUOR FLOW UNIFORMITY; STAGNATION POINT;

PULP DIGESTERS;

APPROXIMATION THEORY; CHEMICAL REACTORS; ELECTRIC RESISTANCE; PIXELS; PULP DIGESTERS; REYNOLDS NUMBER; TOMOGRAPHY;

CHEMICAL REACTORS; ELECTRIC RESISTANCE; REYNOLDS NUMBER;

EID: 34548220425     PISSN: 00084034     EISSN: None     Source Type: Journal    
DOI: 10.1002/cjce.5450850105     Document Type: Article

References (31)

1. Anderson, D. and M. Rea, "Improving Pulp Uniformity with Triple Hanging Baskets," in "Proc. Can. Pulp Paper Assoc." Jasper, AB, (May, 1990).
2. Beck, M. S., T. Dyakowski and R. A. Williams, "Process Tomography: The State of the Art," in "Proc. Frontier Industrial Tomography," Delft, The Netherlands (1997), pp. 357-362.
3. Bisio, A. and R. L. Kabel, "Scaleup of Chemical Processes: Conversion from Laboratory Scale Tests to Successful Commercial Size Design," John Wiley & Sons Inc., New York, U.S.A. (1985).
4. Boger, D. V. and K. Walters, "Rheological Phenomena in Focus," Elsevier, The Netherlands (1993).
5. Bolton, G. T., C. W. Hooper, R. Mann and E. H. Stitt, "Flow Distribution and Velocity Measurement in a Radial Flow Fixed Bed Reactor using Electrical Resistance Tomography," Chem. Eng. Sci. 59(10), 1989-1997 (2004).
6. Bolton, G. T. and K. M. Primrose, "An Overview of Electrical Tomographic Measurement in Pharmaceutical and Related Applications Areas," AAPS Pharm. Sci. Tech. 6(2), 137-143 (2005).
7. Bond, J., J. C. Cullivan, N. Climpson, R. M. Wang and R. A. Williams, "Industrial Monitoring of Hydrocyclone Operation using Electrical Resistance Tomography," Mineral Eng. 12(10), 1245-1252 (1999).
8. Cohen, Y. and A. B. Metzner, "Wall Effects in Laminar Flow of Fluids through Packed Beds," AIChE J. 27(5), 705-715 (1981).
9. Comiti, J. and M. Renaud, "A New Model for Determining Mean Structure Parameters of Fixed Beds from Pressure Drop Measurements: Application to Beds Packed with Parallelepipedal Particles," Chem. Eng. Sci. 44(7), 1539-1545 (1989).
10. Dyakowski, T., L. F. C. Jeanmeure and A. J. Jaworski, "Applications of Electrical Tomography for Gas-Solids and Liquid-Solids Flows - A Review," Powder Tech. 112(3), 174-192 (2000).
11. Farrington, A., "Wood and Digester Factors Affecting Kraft Pulp Quality and Uniformity," Appita J. 34(1), 40-46 (1980).
12. Foumeny, E. A. and S. Roshani, "Mean Voidage of Packed Beds of Cylindrical Particles," Chem. Eng. Sci. 46(9), 2363-2364 (1991).
13. Gullichsen, J., H. Kolehmainen and H. Sundqvist, "On the Nonuniformity of the Kraft Cook," Paperi Ja Puu 74(6), 486-490 (1992).
14. Gustafson, R. R., G. Jimenez, W. McKean and D. S. Chian, "The Role of Penetration and Diffusion in Pulping Non-Uniformity of Softwood Chips," in "Proc. 1988 Pulping Conf.," TAPPI, Atlanta, GA, U.S.A. (1988), pp. 685-691.
15. ITS Ltd., "P2000 Electrical Resistance Tomography System, ITS System 2000 V4 Operating Manual," Industrial Tomography Ltd., Manchester, U.K. (2003).
16. MacLeod, M. and K. A. Beasley, "Kraft Pulping in Canada: Batch Digester Operations," in "Proc. 68th PAPTAC Annual Meeting," Montréal, QC, Canada (1982), pp. A61-A67.
17. MacLeod, M., "Basket Case: Kraft Pulp Strength Variability within a Batch Digester," Tappi J. 73(10), 185-190 (1990).
18. MacLeod, M., T. Radiotis, V. Uloth, F. Munro and L. Tench, "Basket Cases IV: Higher Yield with Paprilox™ Polysulfide-AQ Pulping of Hardwoods," Tappi J. 1(8), 3-8 (2002).
19. Malkov, S., P. Tikka, R. Gustafson, M. Nuopponen and T. Vuorinen, "Towards Complete Impregnation of Wood Chips with Aqueous Solutions. Part 5: Improving Uniformity of Kraft Displacement Batch Pulping," Paperi Ja Puu 85(4), 215-220 (2003).
20. Mitra, D. N., "Optimization of a Batch Digester Operation," Pulp Paper Can. 80(9), 35-41 (1979).
21. Seguin, D., A. Montillet, J. Comiti and F. Huet, "Experimental Characterization of Flow Regimes in Various Porous Media-II: Transition to Turbulent Regime," Chem. Eng. Sci. 53(22), 3897-3909 (1998).
22. Sherban, C., "Improving Pulp Quality and Uniformity in Indirectly Heated Batch Digesters," in "Proc. TAPPI Fall Tech. Conf. and Trade Fair," Chicago, IL, U.S.A. (2003).
23. Tapp, H. S., A. J. Peyton, E. K. Kemsley and R. H. Wilson, "Chemical Engineering Applications of Electrical Process Tomography," Sensors and Actuators B 92, 17-24 (2003).
24. Tikka, P., M. MacLeod and K. Kovasin, "Chemical and Physical Performance of Kraft Cooking: The Impact of Process Alternatives," Tappi J. 74(1), 134-143 (1991).
25. Vlaev, D. S. and C. P. J. Bennington, "Using Electrical Resistance Tomography to Image Liquor Flow in a Model Digester," J. Pulp Paper Sci. 30(1), 15-21 (2004).
26. Vlaev, D. S. and C. P. J. Bennington, "Flow Uniformity in Model Digester Measured with Electrical Resistance Tomography," Can. J. Chem. Eng. 83(1), 42-47 (2005).
27. Wang, M., "Inverse Solutions for Electrical Impedance Tomography based on Conjugate Gradients Methods," Meas. Sci. Technol. 13 101-117 (2002).
28. Williams, R. A. and M. S. Beck, Eds., "Process Tomography - Principles, Techniques and Applications," Butterworth-Heinemann, Oxford, U.K. (1995).
29. Xie, C. G., N. Reinecke, M. S. Beck, D. Mewes and R. A. Williams, "Electrical Tomography Techniques for Process Engineering Applications," Chem. Eng. J. 56(3), 127-133 (1995).
30. Yang, W. Q., J. C. Gamio and M. S. Beck, "A Fast Iterative Image Reconstruction Algorithm for Capacitance Tomography," Sens. Appl. 8, 47-52 (1997).
31. York, T., "Status of Electrical Tomography in Industrial Applications," J. Electron. Imaging 10(3), 608-609 (2001).