Research Article

Modeling of Oxidation Process of Coal Tar Pitch in Rotating Kilns

Table 3

Summary of relevant parameters of simulations.

DescriptionParameters

Particle diameter, ds (mm)1.0
Particle density, ρs (kg/m3)1435
Particle viscosity, μs (Pa·s)0.18
Particle thermal conductivity, λs (W/m·K)2000
Inventory of particles, Gb (kg)8
Air flow rate, Va (Nm3/h)10, 25, 37.5, 50, 62.5
Air temperature, Ta (°C)25
Rotational speed of kiln, ω (rpm)0.33, 0.95, 1.43, 1.91, 2.39
Heat flux, hw (W/m2)150
Temperature of rotary kiln, Tb (°C)200~300