Residual oil hydrogenation process method and reactor

Abstract

The invention discloses a residual oil hydrogenation process and a residual oil hydrogenation reactor. The upper part of the hydrogenation reactor is provided with an atomization reaction zone, and the lower part of the hydrogenation reactor is provided with a liquid phase stabilizing zone; raw oil mixed with a suspension bed catalyst, and hydrogen enter a hydrogen dissolving mixer to be fully mixed, so that the hydrogen is dispersed in the raw oil in a slightly supersaturated state; the mixture is atomized by spraying equipment, and subjected to hydrogenation and cracking reaction in the atomization reaction zone of the reactor; the reacted liquid material enter the liquid phase stabilizing zone; and aromatic hydrocarbon-rich stabilizing oil enters from the upper part of the liquid phase stabilization zone to absorb and stabilize the liquid material dropped from the reaction zone. The atomization reaction zone with a continuous gas phase and a dispersed liquid phase and the liquid phase stabilizing zone with the aromatic hydrocarbon-rich stabilizing oil are provided, so that the collision of residual oil asphaltene colloids in the reaction process can be reduced, and coking is reduced; meanwhile, due to the introduction of aromatic stabilizing oil, the aggregation and phase splitting processes of asphaltene components in the cooling process after the reaction is finished are avoided, and coke formation is inhibited.

Description

technical field [0001] The invention relates to a novel residual oil hydrogenation process method and a reactor, which are mainly used in the technical field of petrochemical industry, especially in the aspects of residual oil hydrogenation treatment and cracking. Background technique [0002] As crude oil becomes heavier and inferior and the market demand for light products continues to grow, the deep processing of heavy and residual oil has become a real problem faced by refineries. At present, there are two main process routes of decarburization and hydrogenation for the lightening of heavy and residual oil. Compared with the decarbonization process, residual oil hydrocracking has many advantages, especially in the treatment of high sulfur content and residue oil treatment. However, when the conventional fixed-bed residual oil hydrogenation technology treats inferior heavy oil with high metal and high carbon residue, not only the conversion rate is low, but also the cata...

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Problems solved by technology

However, the reaction temperature and shell temperature should not be coordinated and controlled, and the reacted material is still prone to phase separation and coking during the cooling process

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