| 摘要 |
<p>A process for treating input coal includes treating input coal in a pyrolysis step to form coal char. The pyrolysis step includes heating the coal substantially in the absence of oxygen to remove volatile material from the coal. The volatile material evolved from the coal in the pyrolysis step is treated to separate the volatile material into gases and liquids, wherein the liquids contain condensed volatile material. A portion of the liquids is directed to the coal char, and the returned portion of the liquids is mixed with the coal char, thereby returning some of the volatile material to the coal char.</p> |
