Catalytic reaction unit and reaction distillation tower

Abstract

The present invention discloses a catalytic reaction unit and a reaction distillation column, the catalytic reaction unit comprising: catalyst bed layers for filling a solid catalyst, the upper part of the solid catalyst filled in each catalyst bed layer having an inclined surface from the second layer; the liquid phase feeding subunit is arranged on the topmost first catalyst bed layer, and liquid phase feeding is guided downwards to the first catalyst bed layer; the gas-phase feeding subunit is arranged between the upper catalyst bed layer and the lower inclined surface, and gas-phase feed of each layer upwards enters the catalyst bed layer; the gas-phase channel and the gas-phase feeding subunit are in a relatively isolated state, and a gas-phase product generated after the gas-phase feeding material and the liquid-phase feeding material react on the catalyst bed layer directly enters the gas-phase channel. According to the invention, gas-phase reaction products can be separated from a reaction zone in time, and particularly, the gas-phase products can still be efficiently separated under the condition that secondary reaction can be carried out on the gas-phase products.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a catalytic reaction unit and a reactive distillation column applying the unit. Background technology [0002] Catalytic distillation originated in the field of chemical industry. It is a technology that completes the catalytic reaction and distillation operation in one container. It has many advantages, such as energy saving, high efficiency, good economy and so on. In view of the advantages brought by catalytic distillation technology, it has been relatively mature in the field of chemical industry. As early as the 1960s, American enterprises have begun to use the concept of catalytic distillation to solve the problem that it is difficult to separate mixtures containing normal olefins, isoolefins and alkanes by traditional distillation due to similar boiling points. Then, based on the characteristics of different reactions, a variety of catalytic distillation equipment came int...

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Problems solved by technology

[0006] The object of the present invention is to provide a catalytic reaction unit and a distillation tower using the reaction unit, so as to overcome the inability to effectively solve the problem of gaseous reaction products from reaction in time in the prior art. Disadvantages of zone separation, especially for the case where the gas phase product can undergo secondary reactions, efficient separation can still be carried out

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