Process for Upgrading a High Endpoint Gas Oil Containing High Concentrations of Thiophenes and Nitrogen and Providing for a Reduced Hydrogen Consumption Rate.

摘要

A process and catalyst that provides for the upgrading of a high endpoint gas oil feedstock that contains significant concentrations of organic sulfur compound and organic nitrogen compounds. Included among the sulfur compounds are the dimethyl-dibenzothiophenes and derivative thereof. The catalyst of the process is an additive impregnated composition or a derivative thereof that further comprises cobalt and molybdenum. The process provides for the upgrading the high endpoint gas oil feedstock by significantly reducing the difficult to remove thiophene and nitrogen compounds and the process does this with a significantly reduced hydrogen consumption relative to processes using comparative catalysts.

主权项

1. A process for upgrading a high endpoint gas oil feedstock that comprises a significant concentration of organic sulfur compounds including dimethyl-dibenzothiophene and derivatives thereof and a significant concentration of organic nitrogen compounds, wherein said process comprises:
contacting said high endpoint gas oil feedstock with an additive impregnated composition, wherein said additive impregnated composition, comprises a support material, a cobalt component, a molybdenum component and a heterocyclic additive, in the presence of hydrogen and under process conditions that provide for an upgraded high endpoint gas oil having significantly reduced concentrations of organic nitrogen and organic sulfur compounds below those of said high endpoint gas oil feedstock and that provide for an hydrogen consumption rate.