Carbon conversion of solid fuels in the freeboard of a laboratory-scale fluidized bed combustor - Application of in situ laser spectroscopy

Fuel

Volumn 83, Issue 10, 2004, Pages 1289-1298

  Lackner, M ^a   Loeffler, G ^a   Totschnig, G ^a   Winter, F ^a   Hofbauer, H ^a  

^a VIENNA UNIVERSITY OF TECHNOLOGY   (Austria)

Author keywords

Biomass; Carbon conversion; Char combustion; Coal; Devolatilization; In situ laser spectroscopy; Modeling; Wood

Indexed keywords

BIOMASS; CARBON DIOXIDE; CARBON MONOXIDE; COMBUSTION; DIFFUSION; FLUIDIZED BEDS; OXIDATION; POROUS MATERIALS; SPECTROSCOPIC ANALYSIS; WOOD;

CARBON CONVERSION; CHAR COMBUSTION; DEVOLATILIZATION; IN SITU LASER SPECTROSCOPY; MODELING;

COAL;

EID: 1842736037     PISSN: 00162361     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.fuel.2003.12.012     Document Type: Article

References (27)

1. Agarwal P.K., La Nauze R.D. Transfer processes local to the coal particle: a review of drying, devolatilization and mass transfer in fluidized bed combustion. Chem Engng Res Des. 67:1989;457-480.
2. Wildegger-Gaissmaier A.E., Agarwal P.K. Drying and devolatilization of large coal particles under combustion condition. Fuel. 69:1990;45-52.
3. Winter F., Prah M.E., Hofbauer H. Intra-particle temperatures under fluidized bed combustor conditions: the effect of drying, devolatilization and char combustion. Combust Flame. 108:1997;302-314.
4. Jia L., Becker H.A., Code R.K. Devolatilization and char burning of coal particles in a fluidized bed combustor. Can J Chem Engng. 71:1993;10-19.
5. 2O - emission characteristics under (circulating) fluidized bed combustor conditions. PhD Thesis. Vienna University of Technology, Vienna, Austria; 1995.
6. Gurgel Veras C.A., Saastamoinen J., Carvalho J.A. Jr, Aho M. Overlapping of devolatilization and char combustion stages in the burning of coal particles. Combust Flame. 116:1999;567-579.
7. 2O formation mechanisms - a detailed chemical kinetic modeling study on a single fuel particle in a laboratory-scale fluidized bed. J Energy Res Technol. 123:(3):2001;228-235.
8. 2O during biomass combustion. Bridgewater A.V. Progress in thermochemical biomass conversion. 2001;641-655 Blackwell Science, Oxford, UK.
9. 2 directly? Some experiments in a hot bed of sand fluidized by air. Chem Engng Sci. 53:(3):1998;427-438.
10. 2 of oxidation on a burning carbon surface. Combust Flame. 107:1996;197-210.
11. Hurt R.H., Calo J.M. Semi-global intrinsic kinetics for char combustion modeling. Combust Flame. 125:2001;1138-1149.
12. Campbell P.A., Mitchell R.E., Ma L. Characterization of coal char and biomass char reactivities to oxygen. Proc Comb Inst. 29:2002;519-526.
13. Skokova, KA. Selectivity in the carbon-oxygen reaction. PhD Thesis. The Pennsylvania State University, State College, PA, USA; 1997.
14. 4 close to the surface of a burning single fuel particle. Meas Sci Technol. 13:2002;1545-1551.
15. Werle P. A review of recent advances in semiconductor laser based gas monitors. Spectrochim Acta Part A: Mol Biomol Spectrosc. 54:(2):1998;197-236.
16. Garbuzov D., Menna R., Maiorov M., Lee H., Khalfin V., DiMarco L., Capewell D., Martinelli R., Gelenky G., Connolly J. 2.3-2.7 μm room temperature CW-operation of InGaAsSb/AlGaAsSb broad-contact and single-mode ridge-waveguide SCH-QW diode lasers. Proc SPIE. 3628:1999;124-129.
17. Donetsky D.V., Westerfeld D., Belenky G.L., Martinelli R.U., Garbuzov D.Z., Connolly J.C. Extraordinarily wide optical gain spectrum in 2.2-2.5 μm In(Al)GaAsSb/GaSb quantum-well ridge-waveguide lasers. J Appl Phys. 90:(8):2001.
18. 2O at 2.3-2.55 μm in a particle laden laboratory-scale fluidized bed combustor (FBC). Therm Sci. 2:(6):2002;13-27.
19. Lackner M., Totschnig G., Winter F., Ortsiefer M., Amann M.C., Shau R., Rosskopf J. Demonstration of methane spectroscopy using a vertical-cavity surface-emitting laser at 1.68 μm with up to 5 MHz repetition rate. Meas Sci Technol. 14:2003;101-106.
20. Merrick D. Mathematical models of the thermal decomposition of coal: 1. The evolution of volatile matter. Fuel. 62:1983;534-539.
21. Loison R., Chauvin R. Pyrolyse rapide carbon. Chem Ind. 91:1964;269-275.
22. van den Bleek C.M., Brem G., Grubor B., Johnsson J.E., Jones R.F., Langer V., Verweyen N. Brem G. Documentation of the IEA-AFBC model, Version 1.1. 1990;TNO Apelddorn, The Netherlands.
23. Niksa S., Kerstein A.R. FLASHCHAIN theory for rapid coal devolatilization kinetics. 1. Formulation. Energy Fuels. 5:1991;647-665.
24. Desypris J., Murdoch P., Williams A. Investigation of the flash pyrolysis of some coals. Fuel. 61:1982;807-816.
25. Solomon P.R., Fletcher T.H., Pugmire R.J. Progress in coal pyrolysis. Fuel. 72:(5):1993;587-597.
26. Niksa S. Predicting the rapid devolatilization of diverse forms of biomass with bio-flashchain. Proc Comb Inst. 28:2000;2727-2733.
27. 2O and on carbon conversion under fluidized bed conditions. PhD Thesis. Vienna University of Technology, Vienna, Austria; 1998.