Reaction rectification reactor

Abstract

The invention discloses a reaction rectification reactor. The reaction rectification reactor comprises a reaction section, a rectification section and a reflux condensation part from bottom to top, wherein a liquid outlet, a gas inlet and a gas distribution plate are arranged on the reaction section from bottom to top; a downspout and the gas distribution plate are arranged in the reactor; the upper end of the downspout is fixed on the gas distribution plate; a liquid inlet is formed in the reactor side wall between the reaction section and the rectification section; holes are evenly formed in the gas distribution plate. Compared with the prior art, the reaction rectification reactor has the beneficial effects that (1) a gas feeding manner of a gas phase is even, the amplitude of fluctuation of a reaction liquid level is small, the liquid level is easily controlled, and the problems of difficult connection between a large-diameter gas inlet pipeline and a gas distributor and processing difficulty of the gas distributor are avoided; (2), one part of reaction heat can be removed by gas carrying a gasified solvent, the temperature is controlled to be stable, and the problems of overheating locally and removing the reaction heat difficultly are avoided; (3), the rectification section and a condenser are capable of better separating certain components which are difficulty separated.

Description

technical field [0001] The invention relates to a reactive rectification device, in particular to a reactive rectification reactor. Background technique [0002] In the traditional gas-liquid phase reactor, the gas bubbles in the liquid phase area, and the gas distributor is used to uniformly disperse the gas phase flow to perform sufficient gas-liquid mass transfer. There are many forms of the distributor, which depend on the gas phase state and application. Occasion, gas phase load, operating pressure, allowable pressure drop, tower diameter and other factors. For industrial production, especially large-volume production, if the gas distribution is not good, the gas-phase bubbling will cause the liquid-phase reaction zone to fluctuate widely, which is not conducive to the automatic control of the liquid level. For the conditions of large volume and low reaction pressure, the diameter of the gas delivery pipe will be relatively large, such as the commonly used ring-type di...

AI Technical Summary

Problems solved by technology

For industrial production, especially large-volume production, if the gas distribution is not good, the gas phase bubbling will cause a large floating range of the liquid level in the liquid phase reaction zone, which is not conducive to the automatic control of the liquid level

For the conditions of large volume and low reaction pressure, the diameter of the gas delivery pipe will be relatively large, such as the commonly used ring-type distributor, that is, opening holes in the circular tube wound into a ring. This distributor is processed, installed and compatible with It is very difficult to connect the intake pipe

In addition, in the traditional gas-liquid phase reactor, the gas bubbled from the liquid phase zone usually directly passes through the gas-liquid separator and condenser to separate the entrained liquid, and it is difficult to separate some components that are difficult to separate. index

[0003] In view of the above situation, at present those skilled in the art are committed to researching a gas-liquid phase reactor of a reactive distillation reactor type, and the reaction of this reactive distillation reactor can be carried out in the liquid phase zone of the tower still or in the rectification section. , when the reaction is carried out in the liquid phase area of ​​the tower kettle, the gas distribution problem is also involved in the gas-liquid phase reactor in the traditional sense. When the reaction is carried out in the rectification section, that is, the gas enters from the bottom of the packing, and the liquid is sprayed from above the packing , they react in the packing section, in this way the gas-liquid contact is sufficient, but for exothermic reactions, the partial overheating of the reaction in this way and the removal of reaction heat are technical problems

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