Combustion of coal chars in oxygen-enriched atmospheres

Combustion Science and Technology

Volumn 179, Issue 8, 2007, Pages 1569-1587

  Bejarano, Paula A ^a   Levendis, Yiannis A ^a  

^a Northeastern University   (United States)

Author keywords

Coal chars; Combustion rate; Oxygen mole fraction; Pyrometry; Temperature time

Indexed keywords

COMBUSTION; FURNACES; OXYGEN; PARTICLE SIZE; PULVERIZED FUEL; PYROMETRY;

COAL CHARS; COMBUSTION RATE; DROP-TUBE FURNACE; OXYGEN MOLE FRACTION; TEMPERATURE-TIME;

CHARCOAL;

EID: 34547281235     PISSN: 00102202     EISSN: 1563521X     Source Type: Journal    
DOI: 10.1080/00102200701239272     Document Type: Article

References (44)

1. Atal, A. and Levendis, Y.A. (1995) Comparison of the combustion behavior of pulverized waste tires and coal. Fuel, 74(11), 1570.
2. x emissions of bituminous coal particles treated with CMA. Fuel, 74(4), 495.
3. Ayling, A.B. and Smith, I.W. (1978) Measured temperatures of burning pulverized-fuel particles, and the nature of the primary product. Combust. Flame, 18, 173.
4. Best, P.E., Carangelo, R.M., Markham, R.J., and Solomon, P.R. (1986) Extension of emission-transmission technique to particulate samples using FTIR. Combust. Flame, 66(1), 47.
5. Buttler, B.W., Wilson, T., and Webb, B.W. (1992) Measurement of time-resolved local particle cloud temperature in a full-scale utility boiler. Proc. Combust. Instit., 24, 1333.
6. Cashdollar, K.L. and Hertzberg, M. (1983) Infrared temperatures of coal dust explosions. Combust. Flame, 51(1), 23.
7. Farzan, H. and Essenhigh, R.H. (1982) High intensity combustion of coal. Proc. Combust. Instit., 19, 1105.
8. Field, M.A. (1969) Rate of combustion of size-grated fractions of char from a low-rank coal between 1200 K and 2000 K. Combust. Flame, 13, 237.
9. Frank-Kamenetskii, D.A. (1969) Diffusion and Heat Exchange in Chemical Kinetics, 2nd ed., Plenum Press, New York, pp. 98-106.
10. Gavalas, G.R. (1980) A random capillary model with application to char gasification at chemically controlled rates. AIChE J., 26, 577.
11. Gavalas, G.R. (1981) Analysis of char combustion including the effect of pore enlargement. Combust. Sci. Technol., 24, 197.
12. Gavalas, G.R. (2006) Personal Communication.
13. Hernberg, R., Stenberg, J., and Zethræus, B.(1993) Simultaneous in situ measurements of temperature and size of burning char particles in a fluidized bed furnace by means of fiberoptic pyrometry. Combust. Flame, 95, 191-205.
14. Howard, J. B. and Essenhigh, R. H. (1966) Combustion mechanisms in pulverized coal flames. Combust. Flame, 10, 92-93.
15. Hu, Y.Q., Nikzat, H., Nawata, M., Kobayashi, N., and Hasatani, M. (2001) The characteristics of coal-char oxidation under high partial pressure of oxygen. Fuel, 80, 2111.
16. Hurt, R.H., Dudek, D.R., Longwell, J.P., and Sarofim, A.F. (1988) The phenomenon of gasification-induced carbon densification and its influence on pore structure evolution. Carbon, 26, 433.
17. Hurt, R.H. and Mitchell, R.E. (1992) On the combustion kinetics of heterogeneous char particle populations. Proc. Combust. Instit., 24, 1233.
18. Joutsenoja, T., Stenberg, J., Hernberg, R., and Aho, M. (1997) Pyrometric measurement of the temperature and size distribution of individual combusting fuel particles. Appl. Optics, 36, 1525.
19. Lafollete, R.M., Hedman, P.O., and Smith, P.J. (1989) An analysis of coal particle temperature measurements with two-color optical pyrometers. Combust. Sci. Technol., 66, 939.
20. Lester, T.W., Seeker, W.R., and Merklin, J.F. (1981) The influence of oxygen and total pressure on the surface oxidation rate of bituminous coal. Proc. Combust. Instit., 18, 1257-1265.
21. Levendis, Y.A., Sahu, R., Flagan, R.C., and Gavalas, G.R. (1988) Post-ignition transients in the combustion of single char particles. Fuel, 67, 275.
22. Levendis, Y.A. and Flagan, R.C. (1989) Synthesis, formation and characterization of micron-sized glassy carbon spheres of controlled pore structure. Carbon, 27, 265.
23. Levendis, Y.A., Flagan, R.C., and Gavalas, G.R. (1989) Oxidation kinetics of monodisperse spherical carbonaceous particles of variable properties. Combust. Flame, 76, 221.
24. Levendis, Y.A., Estrada, K.R., and Hottel, H.C. (1992) Development of multicolor pyrometers to monitor the transient response of burning carbonaceous particles. Rev. Sci. Instit., 63(7), 3608.
25. Levendis, Y.A., Atal, A., Courtenmanche, B., and Carlson, J. (1998) Burning characteristics and gaseous/solid emissions of blends of pulverized coal with waste tire-derived fuel. Combust. Sci. Technol., 131, 183.
26. Loewenberg, Y.A. and Levendis, Y.A. (1991) Combustion behavior and kinetics of synthetic and coal-derived chars: Comparison of theory and experiment. Combust. Flame, 84, 47.
27. Mackowski, D.W., Altenkirch, R.A., Peck, R.E., and Tong, T.W. (1983) Method for particle and gas temperature measurement in laboratory-scale pulverized coal flames. Combust. Sci. Technol., 31, 139.
28. Monson, C.R. and Germane, G.J., Blackham, A.U., and Smooth, L.D. (1995) Char oxidation at elevated temperatures. Combust. Flame, 100, 669.
29. Mitchell, R.E. and Mclean, W.J. (1982) On the temperature and reaction rate of burning pulverized coal. Proc. Combust. Instit., 19, 1113.
30. Mitchell, R.E. (1987) Experimentally determined overall burning rates of coal chars. Combust. Sci. Technol., 53, 165.
31. Mulcahy, M.F. and Smith, I.W. (1969) Kinetics of combustion of pulverized fuel: A review of theory and experiment. Pure Appl. Chem., 19, 81.
32. Murphy, J. and Shaddix, C. (2006) Combustion kinetics of coal chars in oxygen-enriched environments. Combust. Flame, 144, 710.
33. Nettleton, M.A. and Sterling, R. (1971) The combustion of coal particles in shock-heated mixtures of oxygen and nitrogen. Proc. Roy. Soc. Lond., A322, 207.
34. Niksa, S., Mitchell, R.E., Hencken, K.R., and Tichenor, D.A. (1984) Optically determined temperatures, sizes and velocities of individual carbon particles under typical combustion conditions. Combust. Flame, 60, 183.
35. Saito, M., Sadakata, T., and Murata, H. (1991) Combustion rates of pulverized coal particles in high temperature/high-oxygen concentration atmosphere. Combust. Flame, 87, 1.
36. Sahu, R., Levendis, Y.A., Flagan, R.C., and Gavalas, G.R. (1988a) Physical properties and oxidation rates of chars from three bituminous chars. Fuel, 67, 275.
37. Sahu, R., Northrop, P.S., Flagan, R.C., and Gavalas, G.R. (1988b) Char combustion: Measurements and analysis of particle temperature histories. Combust. Sci. and Tech., 60, 215-230.
38. Seeker, W.R., Samuelsen, G.S., Heap, M.P., and Trolinger, J.D. (1981) The thermal decomposition of pulverized coal particles. Proc. Combust. Instit., 18, 1213.
39. Smith, I.W. (1982) The combustion rates of coal chars: A review. Proc. Combust. Instit., 19, 1045.
40. Smoot, L.D. (1991) Coal and Char Combustion, in Fossil Fuel Combustion: A Source Book, Bartock, W., and Sarofim, A. F., Editors, Wiley, New York.
41. Tichenor, D.A., Michell, R.E., Henken, K.R., and NikSa, S. (1984) Simultaneous in situ measurement of the size, temperature and velocity of particles in a combustion environment. Proc. Combust. Instit., 20, 1213.
42. Timothy, L.D., Sarofim, A.F., and Beer, J.M. (1982) Characteristics of single particle of coal combustion. Proc. Combust. Instit., 19, 1123.
43. Timothy, L.D., Sarofim, A.F., Froelich, D., and Beer, J.M. (1986) Soot formation and burnout during the combustion of dispersed pulverized particles. Proc. Combust. Instit., 21, 1141.
44. Walpole, E., Myers, R.H., Myers, S.L., and Ye, K. (2002) Probability & Statistics, 3rd ed., Prentice Hall, Upper Saddle, NJ.