Reactor

Abstract

The invention discloses a reactor which reaction media is liquid, the reactor includes at least one reaction tank, said reaction tank includes tank body and revolution axis which is installed in the tank and can rotate, said reaction tank also includes a container fixed on said axis, the whole outer wall of said container is equipped with holes which can penetrate reaction liquid and gas. The reactor provided by the invention can prevent the vitality of activator decline, extend life time of activator and has characteristics of high exchange efficiency, adequate reaction and wide application range.

Description

technical field [0001] The invention relates to a reactor, in particular to a reactor in which the reaction medium is liquid. Background technique [0002] In the fields of pharmaceutical industry, food industry, environmental protection, agriculture, light textile industry, chemical industry, etc., various reactions are often carried out by means of reactors, and most of the various reactions mentioned above require catalysts for the reaction. For reactions carried out in liquid media, in order to improve the reaction efficiency, the reactants and catalyst must be in effective contact. This is especially true when the catalyst is a solid. [0003] In the fields of biology, pharmaceutical industry, food industry, environmental protection, agriculture, etc., enzymes or enzyme-containing cells are a more attractive type of catalyst among many catalysts. Moreover, at present, enzymes or enzyme-containing cells are mostly used in immobilized forms, because immobilized enzymes / ...

AI Technical Summary

Problems solved by technology

[0006] As far as the packed bed reactor is concerned, the existing problems are: [1] the exchange efficiency between the substrate and the solid phase catalyst is low; [2] the reaction process is not easy to feed and gas, and it is not easy to adjust the pH value and temperature etc.; [3] Not suitable for viscous or insoluble substrates; [4] When using a solid phase catalyst with small particles, the bed pressure drop is large, which leads to easy clogging

[0007] As far as the stirred reactor is concerned, although it can adjust various reaction conditions according to needs, during the stirring process of the stirrer, since the solid phase catalyst is suspended in the substrate solution in the reaction tank, the solid phase catalyst Strong collisions will take place between the particles, between the solid-phase catalyst particles and the agitator, and between the solid-phase catalyst particles and the reaction tank wall (enzymology, edited by Chen Shigen and Zhou Runqi, Fudan University Press, Shanghai, 2001; Biological Reaction Engineering, edited by Qi Yizheng and Xia Jie, Chemical Industry Press, Beijing, 2004), which leads to the fragmentation and wear of solid-phase catalyst particles due to collisions, thereby reducing the activity of the solid-phase catalyst and shortening the service life. And the solid phase catalyst will produce fragments or slag due to fragmentation and wear, and these fragments or slag will be lost with the progress of the reaction, which will hinder the subsequent treatment of the reaction liquid, such as filtration and purification of the product, etc.

Moreover, it is well known that the greater the density and the faster the movement (rotational speed) of the solid-phase catalyst particles suspended in the solution, the higher the efficiency of the reaction; The more easily the catalyst fragments, the faster its activity declines

Therefore, the scope of application of the stirred reactor is limited, especially not suitable for solid-phase catalyst particles that are inherently fragile

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