| 摘要 |
A process of delayed coking with modified feedstock is described maximising the volume of diesel oil and minimising the volume of coke produced by means of feedstock which comprises, in a first embodiment of the invention: the bottom product (8) of the vacuum distillation tower (6), known in the prior art as vacuum residuum, and a fraction (7′) of heavy vacuum gas oil (7) obtained in the aforesaid vacuum distillation. In a second embodiment of the present invention the bottom residuum (5) proceeding from the atmospheric distillation tower (2), known in the prior art as atmospheric residuum, is employed as feedstock of a Delayed Coking Unit (9). |
