PelIetized coals and coal blends: combustion efficiency in a fluidized bed
β Scribed by John M. Vleeskens
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 289 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0016-2361
No coin nor oath required. For personal study only.
β¦ Synopsis
Single coals and coal mixtures were pelletized to give fuels of fixed size, density and carbon content for fluidized bed combustion experiments. Similar combustion efficiencies were generally obtained for pellets and whole coals of equal carbon content. The anomalously high carbon loss of a friable coal (British Columbia), caused by degradation and elutriation of fines, was not apparent when this coal was burned in a pelletized form. Pelletizing has no marked effect on the high carbon loss of high-rank coal.
π SIMILAR VOLUMES
Burnout times of high-ash coals in a fluidized bed were determined for coal panicle sizes ranging from 0.125 to 4 ram, over a temperature range of 973-1173 K and fluidization velocities varying from 3.7Umf to 6.2U,,f. The results show that the mode with which anthracite particles burn resembles that
A model of coal combustion dynamics in a fluidized bed is developed in this study. The model is carried out on the premise that the total combustion response can be decomposed into two distinct processes: volatile combustion and char combustion. In this investigation, combustion dynamics are examine