Continuous reactor suitable for high-viscosity and high-solid-content reactant system and application

Abstract

The invention relates to a continuous reactor suitable for a high-viscosity and high-solid-content reactant system and application of the continuous reactor. The continuous reactor comprises a shell, a flow guide cone, an inner sleeve, structured packing, a gas distributor and a cyclone hydraulic separator; a gas distributor is arranged at the bottom in the reactor, a diversion cone and an inner sleeve are arranged in the middle, and reaction internals such as a cyclone hydraulic separator are arranged at the top of the reactor; the flow guide cone is divided into a contraction type flow guide cone and a diverging type flow guide cone, the contraction type flow guide cone enables the fluid to contract inwards, and the diverging type flow guide cone enables the fluid to diverge outwards; structured packing is arranged in part of the inner sleeve and in an area surrounded by part of the inner sleeve and the shell; N M-stage reaction stages are horizontally arranged in parallel in the reactor to obtain M-stage N-column reactors, wherein M is less than or equal to 50, and N is less than or equal to 50. According to the invention, solid and liquid materials are better mixed by utilizing a multi-stage strong circulation field, and the reaction process is enhanced, so that the reaction conversion rate and the reaction rate are improved.

Description

technical field [0001] The invention belongs to the field of chemical engineering reaction engineering, in particular to a continuous reactor suitable for high-viscosity and high-solid content reaction system and its application. Background technique [0002] In a chemical reaction, the reaction process in which there are two different phase states of liquid and solid at the same time is called liquid-solid reaction. When the viscosity of the reactant or product is greater than 100cp and the solid content is greater than 5%, the viscosity increases and the solid particles Increasing the probability of hindering the contact of the reactants reduces the diffusion, heat transfer and mass transfer between the reactants, thus requiring more time and energy consumption to obtain a higher reaction conversion rate. This type of reaction is commonly found in petrochemical, Coal chemical industry, medicine, pesticide, synthetic resin and other fields. [0003] In industry, most of th...

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Problems solved by technology

[0006] Both patents CN1171667C and CN105400544A have proposed a multi-stage loop reactor, the introduction of multi-stage form is beneficial to the high-level amplification, but there is still a serious defect in the design of the reactor internals, that is, because the inner sleeve is always The gas rising zone causes the material in the inner sleeve and the inner wall of the reactor, especially the solid particle material, to be easily short-circuited and has no ability to recover. Therefore, the multi-stage loop reactor cannot be applied to high-viscosity and high-solid-content reaction systems.

[0007] It can be seen from the above that at present, the industrial reactors for processing high-viscosity and high-solid-content reaction systems are still intermittent stirring tanks. During the intermittent reaction process, the reactors need to be opened frequently manually, resulting in the volatilization of toxic gases generated by side reactions in the production process into the atmosphere. , affecting the environment and worker safety, the parameters of the batch reaction process are subject to human factors and are difficult to control, resulting in unstable or even unqualified product indicators

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