Strong mixing reactor

Abstract

A strong mixing reactor relates to a strong mixing reactor suitable for liquid-liquid, liquid-solid and gas-liquid, gas-liquid-solid multiphase reaction processes with relatively low gas quantity. Thereactor is mainly and technically characterized in that energy is carried through liquid external circulation, and the circulation flow in a fluid is amplified in a mode of combined use of a venturimixed flow nozzle and an inner sleeve, so that each phase in the reactor is quickly, uniformly and strongly mixed; through the flow amplification effect of the coupling nozzle and the inner sleeve, mechanical stirring or gas carrying energy is replaced, and strong mixing of multi-phase fluids can be well achieved; and the reactor has the advantages of simple structure, uniform mixing of each phase, uniform particle suspension, high reactor efficiency and large fluid circulation flow in the reactor. According to the reactor, the effect of a multi-kettle series reactor is achieved through a simple structure, continuous operation of multiple reaction steps is achieved in a single reaction tower, the size of the reactor is reduced under the same reaction conversion rate, and the efficiency ofthe reactor is improved.

Description

technical field [0001] The invention relates to a reactor suitable for liquid-liquid, liquid-solid, gas-liquid and gas-liquid-solid multiphase reaction systems, in particular to a multi-stage strong mixing reactor. Background technique [0002] Liquid-liquid, liquid-solid, gas-liquid and gas-liquid-solid multiphase reaction systems are widely used in chemical, energy, environment, biochemical and other fields. Among these reaction systems, the stirred tank reactor has the most flexible application. The stirred tank adopts external mechanical stirring, and its liquid phase is violently turbulent, with good mixing characteristics and interphase mass transfer rate; at the same time, it can better ensure the uniform suspension of solid phase catalyst particles, thereby ensuring a higher utilization rate of the solid catalyst. However, the stirred tank reactor has several obvious disadvantages: 1) There are rotating parts of the stirring paddle in the kettle, and the requirement...

AI Technical Summary

Problems solved by technology

However, the stirred tank reactor has several obvious disadvantages: 1) There are rotating parts of the stirring paddle in the kettle, and the requirements for sealing are more stringent; 2) The stirring paddle reduces the volume of the reactor where heat exchange components can be installed; 3) The rotation loss of the stirring paddle High power, especially for large-scale process problems are more prominent

For gas-liquid systems with low demand for liquid-liquid, liquid-solid and reactive gases, the operating gas velocity can be matched by introducing inert gas, but the introduction of inert gas increases the complexity of the process and also requires the reactor to have Good gas-liquid separation ability

[0004] Patent CN107626268A discloses a kind of liquid-liquid two-phase reactor and patent CN208679154U discloses a kind of continuous reactor matching automatic continuous mixing and liquid-liquid separation device, all utilize the stirrer mixing material that is arranged on the central axis of the reactor; patent CN208661109U has announced a kind of Venturi jet loop esterification reactor, and its inlet material utilizes Venturi mixed-flow nozzle to promote mixing, but the fluid mixing in the reactor still relies on complicated stirring system

These patents all use the mixer to mix the materials, and the reactor structure is relatively complicated.

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