Inferior one heavy oil conversion process efficiency

The present invention discloses a low-quality heavy oil conversion process efficiency. The selection process is suspended bed plug-flow hydrogenation reactor, with the two-stage ebullated bed to a hydrogenation reactor, to take full advantage of both reactors, optimizing gas-liquid separation system, capable of handling high asphaltenes, high metal and high carbon residue, sulfur inferior heavy oil. The present invention has wide adaptability of raw materials, high conversion, high yield, low energy consumption, good quality characteristics.