| 摘要 |
<p>A delayed coking apparatus for manufacturing product coke having excellent quality from a raw heavy oil of various properties includes a heating furnace and a coking chamber which are connected by piping in the mentioned sequence. The apparatus is provided with an intermediate chamber which has a smaller capacity than that of the coking chamber and which is equipped with independent means for controlling pressure and temperature. The substantially entire amount of the substance to be treated in the intermediate chamber is supplied to the coking chamber. Thus, it is possible to set optimal initial thermal decomposition conditions in accordance with a change in various properties of a raw heavy oil, and it becomes possible to improve the quality of the product coke obtained from the same raw heavy oil.</p> |
