After treatment, the oil slurry is mixed with atmospheric residue and fed into the vacuum distillation unit
Thread Content
Dear experts, I would like to ask: after degreasing, the oil slurry is mixed with atmospheric residue and then fed into a vacuum distillation unit, followed by a solvent deasphalting unit. What is the process flow in this case? What products can be obtained?
How is slurry de-ashed? Is it about removing the catalyst contained within it?
This post was last edited by Refiner on 2018-9-25 at 17:16. Yes, additives are used to facilitate sedimentation, causing the catalyst particles in the slurry to settle to the bottom of the tank; the clarified oil can then be sent to coking or used as a fuel substitute for residue. After further treatment, the slurry can be used in residue hydrogenation processes. The Institute of Rock Mechanics is conducting experiments
What parameters of coking are affected by feeding oil slurry directly into the coker?
Coking, light oil yield, coke ash content
The friend upstairs is right; if the oil slurry is not treated before being fed into the coking process, dust will accumulate, which reduces the efficiency of the heating furnace. Severe coking occurs, and the ash content in the coke increases, affecting its quality. The slurry improves significantly after degreasing
The treated oil slurry is sent to a vacuum distillation unit to separate the diesel and some of the wax oils contained in it, thereby preventing them from contaminating the solvent in the solvent deasphalting process. The oil separated through solvent deasphalting can be used for hydrotreating residue oil or wax oil for cracking purposes, while the remaining material from deasphalting is used to produce asphalts.