Reaction device with outer circulation device and method for controlling the reaction process

Abstract

The invention discloses a reaction apparatus with external circulation equipment and a method for the reaction apparatus to control reaction process. The reaction apparatus comprises a reaction kettle as well as a fluid conveyer and a heat exchanger. One end of the fluid conveyer is connected to the lower part of the reaction kettle by a pipeline, while the other end is connected with the intake of heat exchanger by the pipeline, and the outlet of the heat exchanger is connected with the upper part of the reaction kettle by the pipeline, thereby constructing an external circulation passage for reactants. Stir and heat exchange are carried out to the reactants by the external circulation passage. The control carried out to the liquid-phase reaction by adopting the reaction apparatus with external circulation equipment and the method for the reaction apparatus to control reaction process is characterized by high heat exchange rate in the reaction process and suitability to a reactant system with a wide viscosity range, meanwhile, the construction cost and operational cost are both relatively low.

Description

technical field [0001] The invention relates to a reaction device in the field of chemical engineering, in particular to a reaction device with external circulation equipment and a method for controlling the reaction process by using the same. Background technique [0002] The liquid phase reaction in chemical production or experiment process is often accompanied by relatively severe endothermic or exothermic phenomena, and as the reaction proceeds, the viscosity of the reaction system will change in a wide range. In this way, in order to ensure the smooth reaction To carry out, it is necessary to control the temperature of the reaction and effectively stir the materials, and how to effectively control the temperature of the reaction system and the stirring effect of the materials is a problem that must be considered in chemical production or experiments. [0003] For the reaction accompanied by severe endothermic or exothermic phenomena, in order to control the temperature ...

AI Technical Summary

Problems solved by technology

However, the multi-reservoir structure and the method for controlling the reaction process also have the problems of complex structure, high production cost and maintenance cost.

[0006] In summary, in the prior art, the reaction equipment and treatment means for the situation of severe endothermic or exothermic phenomena in the reaction process have limited ability to exchange heat. The multi-reservoir process adopted by the changing situation has the disadvantage of increasing the cost of the device

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