PROCESS FOR PRODUCING ULTRA LOW SULFUR AND LOW AROMATIC DIESEL FUEL

摘要

On the basis of the finding that hydrogenation reactivity with aromatics, as well as desulfurization reactivity, is closely correlated with the distillation properties of feedstock straight-run gasoil, the disclosed process is provided for separating the straight-run gasoil effluent from a crude distillation unit so as to afford a feedstock having properties good enough to be treated in a post-hydrodesulfurization process, thereby not only utilizing pre-existing hydrodesulfurizaion units to the maximum, but also significantly reducing aromatic levels. The process allows the production of diesel fuel meeting the WWFC category-4 standard, requiring the minimum possible investment in new facilities.