Reaction kettle for enhanced exothermic reaction

Abstract

The invention relates to a reaction kettle for enhanced exothermic reaction, and belongs to the field of chemical engineering equipment, which solves the problem of poor mass transfer and heat transfer in the existing reaction kettle. The reaction kettle comprises an upper kettle body, a lower kettle body, a flange disc of the upper kettle body, a flange disc of the lower kettle body, a top liquidphase raw material inlet of the reaction kettle, a bottom liquid phase product outlet of the reaction kettle, a top vapor phase raw material inlet of the reaction kettle, a jacket, cooling water inlets of the jacket, cooling water outlets of the jacket, a flow guide cylinder, a baffle plate, a spiral pipe in the kettle, and an air distributor. The reaction kettle has the advantages that by arranging the air distributor and the flow guide cylinder, the size of air foam is small, the annular flow is formed in the reaction kettle, the air and liquid mass transfer can be favorably performed, andthe reaction rate is greatly improved; by arranging the multiple cooling water inlets and cooling water outlets in the jacket, the baffle plate and the spiral pipe in the kettle, the temperature of the cooling water is more uniformly distributed, the reaction heat can be quickly moved out of the kettle, and the enhanced exothermic reaction can be stably and quickly performed; the reaction kettle is suitable for the enhanced exothermic reaction with gas and liquid mass transfer, and the mass transfer and heat transfer efficiency is high.

Description

technical field [0001] The invention belongs to the field of chemical equipment and relates to a reaction kettle, in particular to a reaction kettle used for a strong exothermic system including gas-liquid mass transfer and reaction. Background technique [0002] Reactors are widely used in chemical, biotechnology, and medical industries because of their reliability, easy maintenance, and long life. They can be used for strong exothermic reactions such as vulcanization, oxidation, nitration, cyclization, and diazotization. Keeping the material concentration and temperature uniform is a key part of controlling the reaction process and product quality, and it is also conducive to safe production. Designing a reactor with good mass and heat transfer performance is the key to achieving the above goals. However, existing reactors have problems of poor mass transfer and heat transfer capabilities. The poor mass transfer is reflected in: for gas-liquid two-phase reaction, most of...

AI Technical Summary

Problems solved by technology

However, the existing reactors have problems of poor mass transfer and heat transfer capabilities

Poor mass transfer is reflected in: for gas-liquid two-phase reaction, most of the existing equipment uses a single pipe to directly pass the gas into the liquid phase, with large bubbles and low gas-liquid mass transfer coefficient, and the gas cannot be used efficiently, resulting in a slow reaction rate

In addition, the poor heat transfer performance leads to the untimely removal of the heat released by the reaction materials, which leads to safety problems

At present, many important chemical products such as phosphorus oxychloride and acetic acid have problems such as long reaction time and poor safety in the industrial production process due to poor gas-liquid mass transfer performance and poor heat transfer performance of the reactor.

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