Abstract: . . .  apparent density), burning is confined to the particle periphery. Apparent density is nearly constant up to about 90% mass loss. The solid and dashed lines were calculated using the power-law mode of burning model with α = 0.1, which provides adequate characterization of size and apparent density changes with mass loss over the entire conversion range, although at low conversions, diameter reductions are slightly under-predicted and apparent density reductions are slightly over-predicted. Again, Eq. . . .
. . .  R. E. “Char Reactivities to Oxygen at Elevated Pressures,” presented at the Fourth Joint Meeting of the U.S. Sections of the Combustion Institute, Paper D31, Philadelphia, PA March 20-23, 2005. Mitchell, R. E. and Ma, L. “On the Burning Behaviors of Coal and Biomass Chars,” presented at the Fourth Joint Meeting of the U.S. Sections of the Combustion Institute, Poster P26, Philadelphia, PA March 20-23, 2005. 4. References 1. 2. 3. 4. 5. 6. 7. 8. Bhatia, S. K., and Perlmutter, D. D., AIChE Journal . . .
. . .  and Patterson, J. H., Aust. Inst. Energy J., 13:22 (1995). Brunauer, S., The Adsorption of Gases and Vapours, Oxford University Press, Oxford, and Princeton University Press, Princeton, N.J. (1945). Du, Z, Sarofim, A. F., and Longwell, J. P., Energy and Fuels 4:296 (1990). Contact Reginald E. Mitchell: remitche@stanford.edu GCEP Technical Report 2005 http://gcep.stanford.edu  . . .
. . .  “Char Reactivities to Oxygen at Elevated Pressures,” presented at the Fourth Joint Meeting of the U.S. Sections of the Combustion Institute, Paper D31, Philadelphia, PA March 20-23, 2005. Mitchell, R. E. and Ma, L. “On the Burning Behaviors of Coal and Biomass Chars,” presented at the Fourth Joint Meeting of the U.S. Sections of the Combustion Institute, Poster P26, Philadelphia, PA March 20-23, 2005. 4. References 1. 2. 3. 4. 5. 6. 7. 8. Bhatia, S. K., and Perlmutter, D. D., AIChE Journal 26: 379-386, . . .
. . .  differences due to morphological changes that occur as a consequence of devolatilization at high pressures. The studies GCEP Technical Report 2005 http://gcep.stanford.edu undertaken will help us to understand how coal and biomass properties influence char conversion rates in high-temperature, high-pressure environments. Publications The following papers were presented at conferences during the past year: 1. 2. 3. Mitchell, R. E. “Characteristics of Pulverized Coal and Biomass Combustion,” Invited Seminar, . . .
. . .  and Mitchell, R. E. “Char Reactivities to Oxygen at Elevated Pressures,” presented at the Fourth Joint Meeting of the U.S. Sections of the Combustion Institute, Paper D31, Philadelphia, PA March 20-23, 2005. Mitchell, R. E. and Ma, L. “On the Burning Behaviors of Coal and Biomass Chars,” presented at the Fourth Joint Meeting of the U.S. Sections of the Combustion Institute, Poster P26, Philadelphia, PA March 20-23, 2005. 4. References 1. 2. 3. 4. 5. 6. 7. 8. Bhatia, S. K., and Perlmutter, D. D., AIChE . . .
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