TOWARD COMPREHENSIVE HYDROCRACKING CHEMISTRY VIA BREAKTHROUGH VGO CHARACTERIZATION

摘要

The worldwide demand of fuels is expected to continue growing in the next decade. To satisfy these requirements and to respect more stringent regulations, the petroleum industry has to face the challenge of upgrading the heavier cuts, such as vacuum gasoils (VGO), into valuable products like diesel. Purposely, conversion processes as hydrocracking (HCK), usually combined before with hydrotreatment (HDT) for purification, are used to transform VGO. In order to study and to optimize the kinetics of HDT or HCK step, characterization of aromatics, saturates and heteroatomic compounds present in VGO and their hydrotreated or converted products is essential. This paper focuses on the analytical aspect (i) to improve the knowledge of VGO at molecular level and (ii) to provide more accurate data for specific classes of compounds during HDT step.