| 摘要 |
This invention relates to oil refining, in particular to delayed coking to produce coke with 15-25% of volatiles, to be used as a coking additive in a coal coking charge in metallurgical coke production. This invention aims at improving the concentration of volatiles in coke and the efficiency of the plant. The proposed method includes preheating the primary charge, mixing it with a recirculate in a tank, which produces a secondary charge, heating it at 455-470°°C and introducing it into the coking chamber, and coking, producing a coking additive. It is useful to add an anti-foaming dope into the coking chamber 3-5 hours before the end of coking. It is advisable to add the dope in 2-4 areas around the perimeter of the coking chamber. |
