SOLVING STABILITY PROBLEMS FROM PKN ORLEN'S RESIDUE HYDROCRACKER

摘要

A method selection of residual product processing, especially that of vacuum residuum, becomes more and more important recently but creates a serious technical and economic challenge for every refinery. One of possible approaches to this issue is an hydrocracking and hydrodesulfurization process of vacuum residue - Vacuum Residue Upgrading (VRU). This paper shows some aspects concerning stability of products received from the process when processing vacuum residue derived from Ural crude oil. Taking proper corrective measures in the process itself and respective product preparation we succeeded to improve product stability caused by specific chemical composition of vacuum residue received from Ural crude oil.