Continuous immobilized multiphase reactor

Abstract

The invention provides a continuous immobilization type multi-phase reactor, which comprises a reactor barrel provided with a feeding hole and a discharging hole, and is characterized in that a gas feeding hole and a liquid feeding hole are respectively formed in the left end and the right end of the reactor barrel, the discharging hole is formed in the upper end of the reactor barrel, a reactor cavity capable of immobilizing a catalyst and having a smooth surface without dead angles is arranged in the discharging hole of the reactor barrel, and a gas filter, a liquid filter and a discharge filter are respectively and fixedly arranged in the gas feeding hole, the liquid feeding hole and the discharging hole. According to the invention, the catalyst does not enter the filter core of the discharge filter in the reaction process, so that the catalyst can be ensured to completely stay in the reactor, and the reaction can be ensured to be continuously and stably carried out all the time; and the continuous immobilization type multi-phase reactor has the advantages of capability of amplifying a process route, preferentially selecting materials, controllable shearing force and temperature, low energy consumption, high product yield and purity, cost reduction, safety in production and the like, and is suitable for the field of organic chemical synthesis industry.

Description

technical field [0001] The invention relates to a reaction device used in the field of organic chemical synthesis, especially suitable for gas-liquid, gas-solid, liquid-solid, liquid-liquid-gas or gas-liquid-solid three-phase reactions and the reaction performed thereby The multiphase reactor device of the method is a multiphase reactor capable of fixing a catalyst for continuous reaction. Background technique [0002] In the prior art, traditional fixed-bed reactors are widely used in heterogeneous catalytic reactions. Usually, the fixed bed reactor is composed of an upper head, a lower head and a kettle body. A solid catalyst is placed in the kettle body, and the gas enters from the upper seal. After the reaction occurs under the action of the solid catalyst inside the kettle body, it leaves the fixed bed reactor from the lower seal. . [0003] If the fixed bed reactor with the above structure is used, the solid catalyst inside the reactor body cannot be fixed in the rea...

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Problems solved by technology

[0003] If the fixed bed reactor with the above structure is used, the solid catalyst inside the reactor body cannot be fixed in the reactor body. When the gas or liquid flows through the reactor body, the catalyst in the reactor body will be taken out through the outlet, resulting in The amount of solid catalyst inside gradually decreases, which affects the effect of the whole reaction

[0004] In addition, the traditional multi-phase reactor also has the following defects: low output of fixed assets, low utilization rate of reactor batch production, low utilization rate of supporting public works and land occupation

The cost of personnel is high, the operation of personnel in the production process is cumbersome, and the risk of production misoperation is high

The cost of gas raw materials is high. Due to the large volume of the reactor, the nitrogen and hydrogen replacement operation process consumes a lot and is dangerous

The cost of catalyst raw materials is high, the catalyst frequently collides (stirring) during the production process, the process of dosing and recovery is easy to oxidize, dangerous and consumes a lot, and the catalyst recovery rate is low

High energy consumption and cost reactions are often accompanied by heating and cooling, meaningless energy consumption is large

In order to ensure safety and controllability, the reaction time is long (long production time)

Sampling during the reaction is difficult, sampling under pressure is dangerous, and the end point of the reaction cannot be accurately judged

The purity of the product is low, the reaction is difficult to terminate, the reaction kettle has a large liquid holding capacity, and the slow cooling process is prone to side reactions and impurities

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