Abstract
The results obtained for the manufacture of formed coke by a pilot plant installed in the Institute were reported for the first time. The plant consists of (a) a heating furnace of fluidization bed heated both internally and externally (170kg/hr capacity), (b) a double-roller press (It/cm2 pressure, 100-400kg/hr capacity) and (c) a carboniser (100-200kg/hr capacity). A suitably blended material (100-80% non-caking coal with 0-20% strongly caking coal) was first heated at 450°C for 3 minutes in (a), and briquetted while still hot by (b), giving briquettes with a drum index of 60-65%. These briquettes were finally carbonised in (c). It was found that coke with sufficient strength for metallurgical use could be expected by this method.
