| 摘要 |
A production method for a coking additive for coal which is added to charging coal charged to a coke oven, characterized in that distillation vapor containing low boiling-point components produced from a distillation column (10) is fed back to a produced COG line (2) which cools/gas-processes COG produced from the coke oven (1) and processes the distillation vapor together with the COG. |
