The effect of temperature and particle size on the fluid bed drying of Northern Ireland lignite

Drying of a Turkish Lignite in a Batch Fluidized Bed

“…One of them is the constant rate period, and the second is the falling rate period followed by the first period when the moisture reaches the critical moisture content. Similar findings were obtained in both the drying of coal and of other solids (Diamond et al, 1990;Chandran et al, 1990;DiMattia et al, 1996;Kannan et al, 1995). In addition, a slightly visible period in which the initial adjustment occurs (Treybal, 1980) before the constant rate period is present.…”

“…Among the available drying methods, the fluidized bed has the advantage of better temperature control, more uniform temperature distribution in the bed, higher thermal efficiency and drying intensity, less degradation of the particles, and better gas-particle contact (Diamond et al, 1990;Chandran et al, 1990;Kannan et al, 1994;DiMattia et al, 1996;Srinivasa and Subramanian, 1998). These advantages increased the economic feasibility of the system.…”

“…In a study, the effect of temperature and particle size on the drying of a Northern Ireland lignite was investigated (Diamond et al, 1990). They found that the drying rate is increased by increasing the air temperature and reducing the particle size.…”

Effects of Bed Height and Particle Size on Drying of a Turkish Lignite

“…In coal drying, effective parameters are drying medium temperature, flow rate, particle size, and amount of sample [5,12,13]. In the literature, there are quite a few review articles about coal drying [14][15][16][17][18][19][20].…”

Drying kinetics of coarse lignite particles in a fixed bed

“…In evaporative drying of the coal, heat is provided to remove water from the coal particle. In references [5,11] and [12], it is stated that effective parameters on drying of lignite are temperature, drying media flow rate, sample thickness, and particle size. Many studies have been done about lignite drying.…”