Production of High-Strength Coke from Formed Coal Containing Low-Quality Coal by Pressurized Carbonization

抄録

We studied the pressurized carbonization conditions that can produce high-strength coke at low temperature (800°C) from formed coals containing a large amount of non-caking or slightly-caking coal. It was found that as the rapid heating temperature range (room temperature → 450–600°C) increased, the amount of adherence between coal particles increased and the coke strength increased. The effect of the heating rate (10–40°C/min) became significant when the heating temperature exceeded 500°C, and increased with increasing heating rate. The strength also increased with increasing pressure, and the optimal pressure under the present conditions was 1 MPa.