Process for upgrading heavy crudes and residues.

• Improves crude from 10 to 23° API and reduces total sulfur from 5.7% to 1.1% by weight.
• Produces upgraded oil with low acidity, corrosiveness, viscosity, and coke-forming tendency.
• Low impurity levels.
• Increases the quality and yield of gasoil and intermediate distillate fractions.
• Higher production of gasoline, jet fuel, and diesel.