Crude oil desulfurization full by solvent extraction and hydrotreating

摘要

A solvent extraction process for the desulfurization of a feedstream full crude oil containing one or more sulfur compounds, comprising: a. mixing the complete oil selected oil from the group consisting of heavy, medium and light crude oils, and mixtures thereof, with a feed stream containing solvent one or more extraction solvents for one or more of the sulfur compounds, in one or more extraction solvents are not miscible with the crude oil and are selected from the group consisting of furfural, dimethyl formamide, propylene carbonate, ethylene carbonate, acetone, acetonitrile, diacetyl, diethylene glycol, methanol and - ( butylimino) diethanol; b. separating the liquid mixture into a first phase of crude oil of reduced sulfur content and a phase of solvent containing compounds dissolved sulfur and hydrocarbon compounds; c. phase recover crude oil sulfur content reduced as first feed stream for further processing; d. subjecting the solvent phase containing sulfur at a regeneration step in a solvent distillation column automatic and recover a solvent feed stream for use in step (a) above; and. subjecting hydroprocessing hydrocarbons with sulfur compounds dissolved recovered from the regeneration step of the solvent; and f. recovering a second liquid hydrocarbonaceous stream of reduced sulfur content from hidroprocesador.