Visualization of defluidization phenomena caused by gas switching in a two-dimensional fluidized bed

Powder Technology

Volumn 237, Issue , 2013, Pages 153-159

  Kai, Takami ^a   Tashiro, Yuya ^a   Hirano, Yuki ^a   Nakazato, Tsutomu ^a  

^a KAGOSHIMA UNIVERSITY   (Japan)

Author keywords

Defluidization; Fluidization; Fluidized bed; Gas switching; Visualization

Indexed keywords

COLOR-GRADATION; DEFLUIDIZATION; DIGITAL IMAGE; GAS DENSITY; GRAY SCALE; LOWER DENSITY; TRANSIENT PHENOMENON;

EMULSIFICATION; FLOW VISUALIZATION; FLUIDIZATION; FLUIDIZED BEDS; TWO DIMENSIONAL; VISUALIZATION;

DENSITY OF GASES;

ADSORPTION KINETICS; ARTICLE; DEFLUIDIZATION; DIGITAL IMAGING; FLUIDIZATION; FLUIDIZED BED; GAS EXCHANGE; IMAGE ANALYSIS; PARTICLE SIZE; REACTION ANALYSIS;

EID: 84873721348     PISSN: 00325910     EISSN: 1873328X     Source Type: Journal    
DOI: 10.1016/j.powtec.2013.01.025     Document Type: Article

References (33)

1. Kai T., Furusaki S. Methanation of carbon dioxide and fluidization quality in a fluid bed reactor - the Influence of a decrease in gas volume. Chemical Engineering Science 1987, 42:335-339.
2. Kai T., Toriyama K., Nishie K., Takahashi T., Nakajima M. Effect of volume decrease on fluidization quality of fluidized catalyst beds. AICHE Journal 2006, 52:3210-3215.
3. Kai T., Furukawa M., Toriyama K., Nakazato T., Nakajima M. Elimination of defluidization caused by reactions involving a volume reduction in a fluidized catalyst bed and improvement of fluidization by two-stage feeding. Journal of Chemical Engineering Japan 2009, 42:733-738.
4. Kai T., Furukawa M., Toriyama K., Nakazato T., Nakajima M. Analysis of fluidization quality of a fluidized bed with staged gas feed for reactions involving gas-volume reduction. AICHE Journal 2010, 56:2297-2303.
5. Kai T., Furukawa M., Nakazato T., Nakajima M. Prevention of defluidization by gas dilution for reactions involving gas-volume reduction. Chemical Engineering Journal 2011, 166:1126-1131.
6. Go K.S., Kim Y., Son S.R., Kim S.D. 1,2-Dichloroethane production by two-step oxychlorination reactions in a fluidized bed reactor. Chemical Engineering Science 2010, 65:499-503.
7. Abba I.A., Grace J.R., Bi H.T. Variable-gas-density fluidized bed reactor model for catalytic processes. Chemical Engineering Science 2002, 57:4797-4807.
8. Li T., Guenther C. MFIX-DEM simulations of change of volumetric flow in fluidized beds due to chemical reactions. Powder Technology 2012, 220:70-78.
9. Rietema K., Hoebink J. Transient phenomena in fluidized beds when switching the fluidizing agent from one gas to another. Powder Technology 1977, 18:257-265.
10. Kai T., Takahashi T. Formation of particle agglomeration after switching gases. AICHE Journal 1997, 43:357-362.
11. Kai T., Kamei T., Takahashi T. Effect of gas adsorption on defluidization after switching fluidizing gases. AICHE Journal 1998, 44:491-494.
12. Reichhold A., Friedl G. Temporary defluidization in fine powder fluidised beds caused by changing the fluidization gas. Chemical Engineering and Technology 2002, 25:363-368.
13. Reichhold A., Kronberger B., Friedl G. Temporary defluidization in fine powder fluidized beds caused by changing the fluidizing gas. Chemical Engineering Science 2006, 61:2428-2436.
14. Geldart D. Types of gas fluidization. Powder Technology 1973, 7:285-292.
15. Kai T., Tsutsui T., Furusaki S. Features of fluidized catalyst beds for proper design and operation of catalytic reactions. Industrial and Engineering Chemistry Research 2004, 43:5474-5482.
16. Busciglio A., Vella G., Micale G., Rizzuti L. Analysis of the bubbling behaviour of 2D gas solid fluidized beds Part I. Digital image analysis technique. Chemical Engineering Journal 2008, 140:398-413.
17. Busciglio A., Vella G., Micale G., Rizzuti L. Analysis of the bubbling behaviour of 2D gas solid fluidized beds. Part I. Comparison between experiments and numerical simulations. Chemical Engineering Journal 2009, 148:145-163.
18. Busciglio A., Vella G., Micale G., Rizzuti L. Experimental analysis of bubble size distributions in 2D gas fluidized beds. Chemical Engineering Science 2010, 65:4782-4791.
19. Shena L., Johnssonb F., Lecknerb B. Digital image analysis of hydrodynamics two-dimensional bubbling fluidized beds. Chemical Engineering Science 2004, 59:2607-2617.
20. Sun G., Grace J.R. Experimental determination of particle dispersion in voids in a fluidized bed. Powder Technology 1994, 80:29-34.
21. Yue P.L., Rizzuti L., Augugliaro V. Bubble phase voidage and dense phase voidage in thin two-dimensional fluidized beds. Chemical Engineering Science 1986, 41:171-177.
22. Almendros-Ibáñez J.A., Pallarès D., Johnsson F., Santana D. Voidage distribution around bubbles in a fluidized bed: influence on throughflow. Powder Technology 2010, 197:73-82.
23. Abrahamsen A.R., Geldart D. Behavior of gas-fluidized beds of fine powders. Part II. Voidage of the dense phase in bubbling beds. Powder Technology 1980, 26:47-55.
24. Kai T., Iwakiri A., Takahashi T. Emulsion phase expansion and sedimentation velocity in fluidized beds of fine particles. Journal of Chemical Engineering Japan 1987, 20:282-286.
25. Kai T., Shirakawa Y., Takahashi T., Furusaki S. Change in bubble behavior for different fluidizing gases in a fluidized bed. Powder Technology 1987, 51:267-271.
26. Kai T., Murakami M., Yamasaki K., Takahashi T. Relationship between apparent viscosity and fluidization quality in a fluidized bed with fine particles. Journal of Chemical Engineering Japan 1991, 24:494-500.
27. Rietema K. Application of mechanical stress theory to fluidization, Proc. 1967, Eindhoven, Netherlands, Netherland University Press, Amsterdam, Proc. The International Symposium on Fluidization, pp. 154-175.
28. Geldart D., Wong A.C.Y. Fluidization of powders showing degree of cohesiveness - II. Experiments on rates of de-aeration. Chemical Engineering Science 1985, 40:653-661.
29. Nie Y., Liu D. Dynamics of collapsing fluidized beds and its application in the simulation of pulsed fluidized beds. Powder Technology 1998, 99:132-139.
30. Cherntongchai P., Brandani S. A model for the interpretation of the bed collapse experiment. Powder Technology 2005, 151:37-43.
31. Santos E.T., Hémati M., Andreux R., Ferschneider G. Gas and solid behaviours during defluidization of Geldart-A particles. Powder Technology 2011, 211:156-164.
32. Delgado J.A., Uguina M.A., Sotelo J.L., Ruíz B. Fixed-bed adsorption of carbon dioxide-helium, nitrogen-helium and carbon dioxide-nitrogen mixtures onto silicalite pellets. Separation and Purification Technology 2006, 49:91-100.
33. Boudreau B.P. The diffusive tortuosity of fine-grained unlithified sediments. Geochimica et Cosmochimica Acta 1996, 60:3139-3142.