Gas Concentrations in the Lower Part of the Combustion Chamber of a Circulating Fluidized Bed Boiler: Influence of Bed Height

Energy and Fuels

Volumn 14, Issue 6, 2000, Pages 1127-1132

  Fernandez, M J ^a   Lyngfelt, A ^a   Johnsson, F ^a  

^a CHALMERS UNIVERSITY OF TECHNOLOGY   (Sweden)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0034318874     PISSN: 08870624     EISSN: None     Source Type: Journal    
DOI: 10.1021/ef000031f     Document Type: Article

References (21)

1. Johnsson, F.; Leckner, B. Vertical distribution of solids in a CFB-furnace. Proc. Int. Conf. Fluid. Bed Combust. 1995, 13, 671-679.
2. Svensson, A. Fluid dynamics of the bottom bed of circulating fluidized bed boilers Ph.D. Thesis, Department of Energy Conversion, Chalmers University of Technology, Göteborg, Sweden, 1995.
3. Grace, J. R.; Harrison, D. The behaviour of freely bubbling fluidised beds. Chem. Eng. Sci. 1969, 24, 497-508.
4. Werther, J. The hydrodynamics of fluidization in a large diameter fluidized bed. AIChE Symp. Ser. 1974, 70 (No. 141). 53.
5. Grace, J. R.; Clift, R. On the two phase theory of fluidization. Chem. Eng. Sci. 1974, 29, 327-334.
6. Walsh, P. M.; Chaung, T. Z.; Dutta, A.; Beér, J. M.; Sarofim, A. F. Nitric oxide reduction in the freeboard of a fluidized bed coal combustor. Nineteenth Symposium (International) on Combustion; The Combustion Institute: Pittsburgh, 1982; pp 1281- 1289.
7. Johnsson F.; Andersson, S.; Leckner, B. Expansion of a freely bubbling fluidized bed. Powder Technol. 1991, 68, 117-123.
8. Zijerveld, R. C.; Koniuta, A.; Johnsson, F.; Marzocchella, A.; Schouten, J. C.; Bleek van den, C. M. Axial solids distribution and bottom bed dynamics for circulating fluidized bed combustor application AIChE Symp. Ser. 1997, 93, (No. 317).
9. Kunii, D.; Levenspiel, O. Fluidization Engineering, 2nd ed.; Butterworth-Heinemann: Stoneham, MA, 1990.
10. Lyngfelt, A.; Bergqvist, K.; Johnsson, F.; Åmand, L-E.; Leckner, B. Dependence of sulphur capture performance on air staging in a 12 MW circulating fluidised bed boiler. In Gas Cleaning at High Temperatures; Clift, R., Seville, J. P. K., Eds.; Blackie Academic & Professional: Glasgow, 1993; pp 470-491.
11. Conturier, M.; Doucette, B.; Stevens, D.; Poolpol, S.; Razbin, V. Temperature, gas concentration and solid flux profiles within a large circulating fluidized bed combustor. Prop. Int. Conf. Fluid. Bed Combust. 1991, 11, 107-114.
12. 4 under local reducing conditions. J. Inst. Energy 1998, 71, 27-32.
13. Fernandez, M. J.; Lyngfelt, A. Concentration of sulphur compounds in the combustion chamber of a circulating fluidised-bed boiler. Fuel 2000, accepted for publication.
14. Lyngfelt, A.; Åmand, L.-E.; Leckner, B. Progress of combustion in the furnace of a circulating fluidized bed boiler. Twenty-Sixth Symposium (International) on Combustion; The Combustion Institute: Pittsburgh, 1996; pp 3253-3259.
15. Leckner, B.; Golriz, M.; Zhang, W.; Andersson, B-Å.; Johnsson, F. Boundary Layers - First measurements in the 12 MW CFB Research plant at Chalmers University. Proc. Int. Conf. Fluid. Bed Combust. 1991, 11, 771-776.
16. 3 and HCN in the combustion chamber of a CFB boiler burning coal. Proc. Int. Conf. Fluid. Bed Combust. 1999, 16, 352-365.
17. Ljungström, E. B. In-bed oxygen measurements in a commercial-size AFBC. Proc. Int. Conf. Fluid. Bed Combust 1985, 8, 853-864.
18. Glicksman, L. R.; Hyre, M.; Woloshun, K. Simplified scaling relationship for fluidized beds. Powder Technol. 1993, 77, 177-199.
19. Johnsson, F.; Vrager, A.; Leckner, B. Solids How pattern in the exit region of a CFB-furnace - influencc of the exit geometry. Proc. Int. Conf. Fluid. Bed Combust. 1999, 15, 164-184.
20. Davidson, J. F. First session - Introduction by Rapporteur. Inst. Chem. Eng. Symp. Ser. 1968, 30, 3-11.
21. Svensson, A.; Johnsson, F.; Leckner, B. Bottom bed regimes in a circulating fluidized bed boiler. Int. J. Multiphase Flow 1996, 22 (6), 1187-1204.