It also describes the economy of delayed coking process and gives comparison with other main residue conversion processes (RFCC and residue hydroprocessing processes).

On the basis of analysis of the process mechanism, the model for soft measurement of the dry-point of crude gasoline delayed coking is established by using PLS-RBFN parallel method.

It is pointed out that process capacity and technology level of the existing delayed coking units should be further increased to develop their roles in residue processing.