Drying of a Turkish Lignite in a Batch Fluidized Bed

Drying of a Turkish lignite (İspir-Karahan) in a batch fluidized bed was investigated. In the experiments, temperature and velocity of drying air and particle size of the lignite sample were chosen as parameters. It was found that the drying rate increased with increasing air temperature and air flow rate and with decreasing particle size. The effect of air temperature on the drying rate was found to be more significant than those of other parameters. It was also observed that the equilibrium moisture content and the time taken to reach equilibrium moisture decreased with increasing air temperature.

[1]  P. P. Thomas,et al.  Drying of Solids in Fluidized Beds , 1995 .

[2]  M. Nishioka.  Molecular mobility of high-volatile bituminous coals accompanying drying , 1994 .

[3]  John B. Agnew,et al.  Steam drying of coal. Part 2. Modeling the operation of a fluidized bed drying unit , 2001 .

[4]  E. Kakaras,et al.  Computer simulation studies for the integration of an external dryer into a Greek lignite-fired power plant , 2002 .

[5]  C. Srinivasa Kannan,et al.  A kinetic model for drying of solids in batch fluidized beds , 1994 .

[6]  L. Szigeti,et al.  Upgrading of high moisture content lignite using saturated steam , 1985 .

[7]  C. Srinivasa Kannan,et al.  Some Drying Aspects of Multistage Fluidized Beds , 1998 .

[8]  Ibrahim Dincer,et al.  Determination of drying times for regular multi-dimensional objects , 2002 .

[9]  K. Vorres.  Effect of temperature, sample size and gas flow rate on drying of Beulah-Zap lignite and Wyodak subbituminous coal , 1994 .

[10]  Arun S. Mujumdar,et al.  Batch drying kinetics of corn in a novel rotating jet spouted bed , 1996 .

[11]  Drying characteristics of Morwell brown coal and effects of drying on liquefaction , 1986 .

[12]  Gordon Nonhebel,et al.  Drying of solids in the chemical industry , 1971 .

[13]  C. Bergins,et al.  Dewatering of Fossil Fuels and Suspensions of Ultrafine Particles by Mechanical/Thermal Dewatering , 1999 .

[14]  S. Rao,et al.  Fluidized bed drying of solids , 1990 .

[15]  K. Vorres,et al.  Drying of Beulah-Zap lignite☆ , 1992 .

[16]  Gordon McKay,et al.  The effect of temperature and particle size on the fluid bed drying of Northern Ireland lignite , 1990 .