A103 高温空気吹きガス化システムの石炭ガス化特性

抄録

A new concept slagging gasifier is proposed. The gasifier is the pebble bed gasifier, which contains a fixed ceramic ball bed under an entrained bed. The inner pressure is almost atmospheric pressure. Gasification experiment fueled by pulverized Datong coal was done in a 200 kg/day capacity pebble bed gasifier. Temperature distribution was measured. Based on the results of experiments, energy balance and material balance was calculated. The calorific value of syngas was 1,187 kcal/Nm3. The cold gas efficiency as high as 78% was achieved. Gasification experiment fueled by crushed Skyline coal with the mean particle diameter of 1mm was also done. The calorific value of syngas was 890 kcal/Nm3,and the cold gas efficiency was 65%.