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The optimization of a refinery with fuels and lubes portfolio is considered a challenge since there are several tradeoffs which need to be addressed. This includes the crude selection, which is based on physical properties for fuel oil slates and on molecular properties (e.g. VI) for the lube base oil slates. This is in addition to the split of the downstream feedstock, i.e. Vacuum Gas Oil (VGO), which needs to be distributed to several conversion units, and the tradeoff between the yield and quality of the lube base oil which are determined in the hydrocracking unit. This paper discusses the main tradeoffs in a refinery with the fuel and lubes portfolio and proposes a systematic formulation to address these tradeoffs.
Inspec keywords: fuel; oil refining; lubricating oils; optimisation; petroleum; crude oil; cracks
Subjects: Engineering materials; Fracture mechanics and hardness (mechanical engineering); Optimisation; Industrial processes; Fuel processing industry; Mining, oil drilling and natural gas industries; Products and commodities