Hydrodynamics of Riser Units and Their Impact on FCC Operation

Industrial and Engineering Chemistry Research

Volumn 36, Issue 11, 1997, Pages 4504-4515

  Derouin, Céline ^a   Nevicato, David ^a   Forissier, Michel ^b   Wild, Gabriel ^c   Bernard, Jean René ^a  

^a TOTAL   (France)

^b CPE LYON   (France)

^c UNIVERSITÉ DE LORRAINE   (France)

Author keywords

[No Author keywords available]

Indexed keywords

CATALYST DEACTIVATION; COKING; FLUID CATALYTIC CRACKING; FLUIDIZED BEDS; HYDRODYNAMICS; MATHEMATICAL MODELS; REACTION KINETICS;

CATALYTIC RISERS; OSTWALD DE WAELE EQUATION; PLUG FLOW MODEL;

CHEMICAL REACTORS;

CATALYST; DISPERSION; HYDRODYNAMICS;

EID: 0031277907     PISSN: 08885885     EISSN: None     Source Type: Journal    
DOI: 10.1021/ie970432r     Document Type: Article

References (23)

1. Ambler, P. A.; Milne, B. J.; Berruti, F.; Scott, D. S. Residence time distribution of solids in a circulating fluidized bed: experimental and modelling studies. Chem. Eng. Sci. 1990, 45, 2179.
2. Azzi, M.; Turlier, P.; Large, J. F.; Bernard, J. R. Use of a momentum probe and gammadensitometry to study local properties of fast fluidized beds. In Circulating bed technology III; Basu, P., Horio, M., Hasatani, M., Eds., Pergamon Press: Toronto, 1990; p 189.
3. Bernard, J. R.; Santos Cottin, H.; Margritta, R. Use of radioactive tracers for studies of fluidized catalytic cracking units. Isotopenpraxis 1989, 25, 161.
4. Berruti, F.; Kalogerakis, N. Modeling the internal flow structure of circulating fluidized bed. Can. J. Chem. Eng. 1989, 67, 1010.
5. Berruti, F.; Chaouki, J.; Godfroy, L.; Pugsley, T. S.; Patience, G. S. Hydrodynamics of circulating fluidized bed risers: a review. Can. J. Chem. Eng. 1995, 73, 579.
6. Harris, B. J.; Davidson, J. F. Modelling options for circulating fluidized beds: a core/annulus depositions model. In Circulating Fluidized Bed Technology IV; Avidan, A. A., Ed.; AIChE: New York, 1994; p 32.
7. Kagawa, H.; Mineo, H.; Yamazaki, R.; Yoshida, K. A gas-solid contacting model for fast fluidized bed. In Circulating Fluidized Bed Technology III; Basu, P., Horio, M., Hasatani, M., Eds.; Pergamon Press: Toronto, 1990; p 551.
8. Martignoni, W.; de Lasa, H. Modelling industrial scale FCC riser units. A heterogeneous model for adsorption and reaction effects. Preprints Fluidization VIII; Tours, France, 1995; Vol. 1, p 50.
9. Martin, M. P. Contribution à l'étude des élévateurs de craquage catalytique. Effets liés à l'injection de la charge. (Contribution to the investigation of FCC risers. Effects of the feedstock injection.) Thèse de doctorat, INPL, Nancy, France, 1990.
10. Martin, M. P.; Turlier, P.; Bernard, J. R.; Wild, G. Gas and solid behavior in cracking circulating fluidized beds. Powder Technol. 1992a, 70, 249.
11. Martin, M. P.; Derouin, C.; Turlier, P.; Forissier, M.; Wild, G.; Bernard, J. R. Catalytic cracking in riser reactors: core-annulus and elbow effects. Chem. Eng. Sci. 1992b, 47, 2319.
12. Pitault, I.; Nevicato, D.; Forissier, M.; Bernard, J. R. Kinetic model based on a molecular description for catalytic cracking of vacuum gas oil. Chem. Eng. Sci. 1994, 49, 4249.
13. Pitault, I.; Forissier, M.; Bernard, J. R. Détermination de constantes cinétiques du craquage catalytique par la modélisation du test de microactivité (MAT). (In situ measuring techniques for industrial fluidized beds.) Can. J. Chem. Eng. 1995, 73, 498.
14. Pugsley, T. S.; Patience, G. S.; Berruti, F.; Chaouki, J. Modeling the catalytic oxidation of n-butane to maleic anhydride in a circulating fluidized bed reactor. Ind. Eng. Chem. Res. 1992, 31, 2652.
15. Rhodes, M. J. Modelling the flow structure of up ward-flowing gas-solids suspensions. Powder Technol. 1990, 60, 27.
16. Schoenfelder, H.; Werther, J.; Hinderer, J.; Keil, F. J. Methanol to olefins-prediction of the performance of a circulating fluidized bed reactor on the basis of kinetic experiments in a fixed bed reactor. Chem. Eng. Sci. 1994, 49, 5377.
17. Schoenfelder, H.; Kruse, M.; Werther, J. A two-dimensional model for circulating fluidized bed reactors. AIChE J. 1996, 42, 1875.
18. Schuurmans, H. J. A. Measurements in a commercial catalytic cracking unit. Ind. Eng. Chem. Process Des. Dev. 1980, 19, 267.
19. Senior, R. C.; Brereton, C. Modelling of circulating fluidised-bed solids flow and distribution. Chem. Eng. Sci. 1992, 47, 281.
20. Turlier, P.; Bernard, J. R. Techniques d'étude "in situ" des lits fluides industriels. (Determination of FCC kinetic constants by modeling of Micro-Activity-Test.) Entropie (Paris) 1992, 170, 24.
21. van Breugel, J. W.; Stein, J. J. M.; de Vries, R. J. Isokinetic sampling in a dense gas-solids stream. Proc. Inst. Mech. Eng. 1970, 184, 18.
22. Wong, R.; Pugsley, T.; Berruti, F. Modelling the axial voidage profile and flow structure in risers of circulating fluidized beds. Chem. Eng. Sci. 1992, 47, 2301.
23. Zhang, W.; Tung, Y.; Johnsson, F. Radial voidage profiles in fast fluidized beds of different diameters. Chem. Eng. Sci. 1991, 46, 3045.