Reaction system for hydroformylation reaction

Abstract

The invention provides a reaction system for hydroformylation reaction. The reaction system at least comprises a reaction kettle; the reaction kettle comprises a kettle body, a Venturi ejector and a gas distribution plate; the gas distribution plate is arranged in the kettle body and divides the kettle body into a gas-liquid contact reaction cavity and a gas material chamber; the Venturi ejector is positioned at the top of the kettle body, and a material outlet of the venturi ejector is positioned in the gas-liquid contact reaction cavity; the bottom of the gas-liquid contact reaction cavity is connected with a reaction material outlet channel; and the gas material chamber is communicated with a gas feeding inlet channel. When the reaction system is used for hydroformylation reaction, the contact area of gas and liquid can be increased and continuously updated, the mass transfer effect is enhanced, the reaction conversion rate can be increased, the reaction time can be greatly shortened, and the reaction can be continuously carried out.

Description

technical field [0001] The invention relates to the field of chemical reaction preparation, in particular to a reaction system for hydroformylation reaction. Background technique [0002] The hydroformylation reaction of olefins refers to the process in which carbon monoxide, hydrogen and olefins form aliphatic aldehydes with one more carbon atom than the original olefins under pressure in the presence of a catalyst, so it is also called "formylation (reaction)" or "hydroformyl chemical reaction". [0003] In olefin hydroformylation reaction, catalyst aqueous solution, CO / H 2 , The product aldehyde forms gas-liquid-liquid three-phase, so the reaction adopts a slurry bed reactor. [0004] The Chinese patent CN 111217686 A introduces a Venturi ejector reactor. The advantage is that the conversion of static pressure energy and kinetic energy is cleverly used to realize the circulation of the reaction gas, which reduces energy consumption; the disadvantage is that the circulat...

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Problems solved by technology

[0007] In view of the above-mentioned shortcoming of prior art, the object of the present invention is to provide a kind of reaction system for hydroformylation reaction, it has the characteristics of high-efficiency heat and mass transfer, is used to solve the problem of hydroformylation in the prior art The above-mentioned problems in the reaction reactor, such as the limited gas circulation of the Venturi injector type, the uneven gas distribution of the annular gas distribution plate, etc., the existence of these problems make the heat transfer and mass transfer efficiency of the hydroformylation reactor low, prolonged reaction time

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