Raw coal samples received from Ban Poo Mine, Lampoon province were crushed and prepared into four particle size range (0.5-1.0 mm. , 1.0-2.0 mm. ,2.0-4.0 mm. and 4.0-6.0 mm.). The experiments were devided in two parts. In part one, it was carbonized in a Modified Fisher Assay retort at final temperatures 250-600 °C with a heating rate of 5 °C/min. The result showed that the yield of char was 53.0 (%W), tar oil 3.4 (%W) and gas 15.6 lits at 600 °C. In part two, it was carbonized in a fluidized bed reactor at 325-600 °C at the same heating rate. The result showed that the yield of char was 51.0(%W) with 0.3 (%W) tar oil at 600 °C. The proximate analysis of char were fixed carbon 65.8%, volatile matter 17.6%, ash content 16.5% and calorific value 6,457 cal/g at 600°C. Coal tar consisted of saturated hydrocarbon: unsaturated hydrocarbon: aromatics in the order 0.3081: 0.3051: 0.3868. Noncondensible gases from carbonization in fluidized bed composed of methane, carbondioxide and oxygen.
