Tangential circulating-flow-tube-type heterogeneous reactor

Abstract

The invention discloses a tangential circulating-flow-tube-type heterogeneous reactor. The tangential circulating-flow-tube-type heterogeneous reactor is characterized by comprising a plurality of groups of reaction circulating tubes, a gas-liquid separator and a liquid-solid rotational flow separator, wherein the plurality of groups of reaction circulating tubes are used for the mixed reaction of gases, liquids and solids; the reaction circulating tubes comprise reaction liquid ascending sections, tangential inlet sections, oblique descending outlet sections, reaction liquid drop sections and circular arc connecting sections; the reaction liquid ascending sections and the reaction liquid drop sections are communicated through the circular arc connecting sections; the upper ends of the reaction liquid ascending sections are communicated with the gas-liquid separator through the tangential inlet sections; the gas-liquid separator is communicated with the reaction liquid drop sections through the oblique descending outlet sections; the oblique descending outlet sections are positioned below the tangential inlet sections; the lower end of the gas-liquid separator is connected with the liquid-solid rotational flow separator. The tangential circulating-flow-tube-type heterogeneous reactor has the advantages that the tangential circulating-flow-tube-type heterogeneous reactor can achieve sufficient mixed reaction of three phases of a gas phase, a liquid phase and a solid phase and can separate the three phases of the gas phase, the liquid phase and the solid phase continuously after reaction, a rotary component is omitted, good airtightness is achieved, the reaction temperature is controlled stably, and high safety is realized.

Description

technical field [0001] The present invention relates to a tangential loop tubular heterogeneous reactor. Background technique [0002] With the development of the chemical industry, multiphase mixing and reaction systems are becoming more and more extensive. A large number of chemical reaction processes need to involve three phases of gas, liquid and solid, especially with the development of the catalytic industry, the number of heterogeneous reaction systems that introduce solid catalysts is increasing. How to achieve uniform gas-liquid-solid three-phase mixing has become the key to realize multiphase flow, mass transfer and reaction. Fluidized bed, slurry bed, etc. are widely used in the chemical industry for multiphase flow and reaction equipment, and play a significant role in the multiphase flow reaction process. However, for some special chemical reaction processes, these devices cannot achieve the desired effect. [0003] Hexamethylenediamine is an important chemic...

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Problems solved by technology

[0007] However, the low-pressure hydrogenation using Raney nickel as a catalyst in the above reaction process is a typical gas-liquid-solid three-phase flow and reaction system. The system flow is complicated, the reaction pressure is medium, and the reaction process releases heat.

In a tank reactor or a fixed bed reactor, the gas-liquid-solid three-phase mixing in the reaction system is incomplete; the heat generated by the reaction cannot be removed in time, which makes the reaction temperature unstable, which is not conducive to the smooth progress of the reaction; The reactor or fixed bed reactor cannot continuously complete the separation of gas-liquid-solid three-phase, and complex phase separation equipment is required after the reactor. The tank reactor is also equipped with rotating parts, and the rotation of the equipment may easily lead to gas leakage and static electricity. There are high security risks

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