초록 ▼

A process is set forth for the solvent extraction and hydroliquefaction of heavy hydrocarbon oils and residua having an API gravity at 60°F. of less than 20°in the presence of a hydrogen atmosphere and a hydrogen donor solvent at elevated temperature and pressure. Alternately, the hydrocarbon feed c

A process is set forth for the solvent extraction and hydroliquefaction of heavy hydrocarbon oils and residua having an API gravity at 60°F. of less than 20°in the presence of a hydrogen atmosphere and a hydrogen donor solvent at elevated temperature and pressure. Alternately, the hydrocarbon feed can be subjected to a vacuum distillation before solvent extraction or the liquefaction can be catalyzed in-situ. The process results in improved oil production and greater denitrogenation desulfurization and demetallization.

대표청구항 ▼

A process for the hydrogen donor solvent hydroliquefaction of a heavy hydrocarbon oil or residuum having an API gravity at 60°F. of less than 20°comprising the steps of: (a) contacting said heavy hydrocarbon oil or residuum with an extracting solvent to remove lighter hydrocarbon components which co

A process for the hydrogen donor solvent hydroliquefaction of a heavy hydrocarbon oil or residuum having an API gravity at 60°F. of less than 20°comprising the steps of: (a) contacting said heavy hydrocarbon oil or residuum with an extracting solvent to remove lighter hydrocarbon components which constitute solvent soluble components of the oil or residuum (b) mixing the solvent extracted residue oil or residuum with a hydrogen donor solvent having a boiling point of at least 375°F. to produce a liquefaction feedstock; (c) hydroliquefying said feedstock in the presence of a hydrogen atmosphere at a pressure of at least 500 psia and a temperature of at least 650°F.; (d) separating the hydroliquefied product of step (c) from any gas phase which exists in the product; (e) separating said hydroliquefied product into a distillable oil fraction and a non-distillable bottom fraction, and (f) recycling a portion of the distillable oil fraction to step (b) as at least a portion of the hydrogen donor solvent.