Hydrogenation reactor and hydrogenation method thereof

Abstract

The invention discloses a hydrogenation reactor and a hydrogenation method thereof. The hydrogenation reactor comprises an inner cylinder and a reactor shell, the inner cylinder is conical, and an annular space is formed between the inner cylinder and the reactor shell; the edge of the bottom of the inner cylinder is connected with the inner wall of the reactor in a sealed manner; the inner cylinder is filled with a hydrogenation catalyst I, the annular space is filled with a hydrogenation catalyst II, and the activity of the hydrogenation catalyst I is higher than that of the hydrogenation catalyst II; a hydrogen supplementing assembly is horizontally arranged in the reactor; a reactor raw material inlet is communicated with the bottom of the inner cylinder; a reactor product outlet is communicated with the lower part of the annular space; the material flows in the inner cylinder from bottom to top; and the material flows in the annular space from top to bottom. The method can effectively control the contact time of the material and different active catalysts in different temperature sections in the hydrogenation reaction, realizes the purposes of rapid reaction in low and medium temperature sections and inhibition of side reaction in high temperature sections, and improves the hydrogenation reaction rate and reaction depth.

Description

technical field

[0001] The invention belongs to the fields of chemical industry and petrochemical industry, and specifically relates to a hydrogenation reactor and a hydrogenation method. Background technique

[0002] Hydrogenation is a reaction process in which hydrogen interacts with compounds, usually in the presence of a catalyst. The hydrogenation process is already one of the most important reaction processes in the chemical industry and petroleum refining industry. The hydrogenation reaction is a reversible, exothermic, and molecular number reduction reaction, and low temperature and high pressure are conducive to shifting the chemical equilibrium to the direction of the hydrogenation reaction. The temperature required for the hydrogenation process depends on the activity of the catalyst used, and the one with higher activity can have a lower temperature. For the hydrogenation reaction with a small equilibrium constant under reaction temperature conditions, in order...

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