β Scribed by O.D.S. Mota; J.B.L.M. Campos
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Abstraet~We describe a study of the combustion of charges of coke with a wide range of particle sizes in fluid&d beds of sand. The coke particles ranged in size from 2.0 to 6.5 mm and experiments were performed with small and large charges of particles. In the latter case the experiments were perfor
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
## NMR spectroscopy. Structural characterization by elemental analysis, FTIR, and NMR spectroscopy on both vacuum-distilled and air-blown pitches showed that distillation of lighter fractions, reduction of atomic H/C ratio, and dehydrogenation raised their softening points. Structural analysis by N