Abstract
Previous studies have proven that it is almost impossible for light cycle oil (LCO) to attain automotive diesel fuel specifications by hydroprocessing. In this study, in order to overcome the inhibitory properties of LCO such as high refractory sulfur species content and high aromatic content, a distillation of LCO up to 350 °C was performed with the objective of isolating the heavy sulfur species and polyaromatic compounds which are difficult to be removed via hydroprocessing. Considering the boiling point of refractory heavy sulfur species, it is expected that these sulfur species, which are difficult to be hydrodesulfurized, will be isolated along with the heavy LCO fraction (350+). Moreover, it is expected that some additional properties such as density, aromatic content, and cetane number will be improved after distillation. The light cut of LCO (350−), LCO_cut, which had an improved content of inhibitory compounds, was used as a feed in a hydroprocessing unit in order to get a final product that cou...
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