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Novel reactor and processing method thereof

A reactor, a new type of technology, applied in the field of reactors, can solve the problems of low mass transfer and heat transfer efficiency, uneven material mixing, etc., and achieve the effect of improving mixing efficiency, efficient mixing, and simple and efficient processing methods

Active Publication Date: 2022-03-08
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: The technical problem to be solved by the present invention is to provide a new type of reactor for the deficiencies of the prior art, which solves the problems of uneven mixing of materials in the reaction channel in the reactor, low efficiency of mass transfer and heat transfer, etc. Mixing to improve mass and heat transfer efficiency

Method used

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  • Novel reactor and processing method thereof
  • Novel reactor and processing method thereof
  • Novel reactor and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: CFD calculation simulation reactor mixing efficiency

[0038] The outer diameter of the reactor shell 1 is 11mm, the inner diameter is 10mm, the long axis of the built-in ellipsoid baffle 2 is 11mm, the short axis is 6mm, the distance between the two ellipsoids is 15mm, the angle is 90°, the length of the mixing channel 200mm, such as figure 1 and figure 2 shown. Select liquid water with a density of 998.2kg / m 3 , the viscosity is 0.001003kg / m-s, and the velocity value is 0.01m / s. The laminar flow model is used to simulate the CFD calculation of the reactor, and the mixing efficiency, time to effect and length to effect are calculated at different lengths.

[0039] The results show that the effective length of the reactor structure is 180mm, and the effective time is 18s, such as image 3 shown. (Achieving effect length / time: the length and time required when the fluid mixing efficiency is 90%.

Embodiment 2

[0040] Example 2: CFD calculation and simulation of reactor mixing efficiency without built-in baffles

[0041] The outer diameter of the reactor is 11 mm, the inner diameter is 10 mm, and the length of the mixing channel is 500 mm. Select liquid water with a density of 998.2kg / m 3 , the viscosity is 0.001003kg / m-s, and the velocity value is 0.01m / s. Using the laminar flow model to carry out CFD calculation and simulation of the reactor, calculate the mixing efficiency at different lengths and perform linear fitting, such as Figure 4 shown.

[0042] The results show that the mixing effect of the reactor without built-in baffle structure increases linearly, and the fitting equation is: y=4.26278*10 -4 +0.16785; According to the linear fitting equation, it can be predicted that the effective length is 1717mm, and the effective time is 171.7s, and its mixing efficiency is obviously lower than that of the reactor with baffle plate structure.

Embodiment 3

[0043] Example 3: Reactor processing method - 3D printing by photocuring

[0044] First, use 3D modeling software to design the mold of the channel structure, and then import the STL file into the 3D printer modeling software, set the penetration depth of UV curing to 55 μm, and the curing time of each layer is 3 seconds, and the printing is completed after waiting for 350 minutes.

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Abstract

The invention discloses a novel reactor and a processing method thereof. The novel reactor comprises a shell and a built-in baffle, a plurality of inlet channels are formed in the front end of the shell, a mixing channel is formed in the middle, and an outlet is formed in the rear end; the built-in baffles are arranged in the mixing channel at intervals in the fluid flowing direction, the two sides of each built-in baffle and the shell are integrally formed, and the fluid flowing through the built-in baffles is divided into an upper fluid and a lower fluid. The reactor can be prepared by any 3D printing forming technology of fused deposition forming, light curing forming, material spraying forming, material extrusion forming, adhesive powder spraying forming, powder bed smelting and sheet stacking. According to the reactor, a plurality of baffle structures of repetitive units are arranged in the mixing channel, and fluid entering from two inlets continuously changes a flowing path through impact of the baffles, so that the mixing process is enhanced, the mixing efficiency is improved, and efficient mixing is completed within a short time.

Description

technical field [0001] The invention belongs to the technical field of reactors, in particular to a novel reactor and a processing method thereof. Background technique [0002] Chemical reactions have always been limited by traditional chemical reactors. Mass transfer and heat transfer will change with the size of the reactor, making it difficult to achieve uniform distribution of temperature and energy. Therefore, many new types of reactors and their internals have been developed in recent years to enhance process intensification. [0003] Because of its high specific surface area, the reactor reduces the diffusion distance between reactants, and the embedding of internal components enhances the disturbance between fluids, improves the efficiency of mass transfer and heat transfer, and can realize the scale-up production from small scale to pilot scale. At the same time, combining the reactor with CFD computational fluid dynamics can realize the numerical calculation and f...

Claims

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Application Information

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IPC IPC(8): B01J19/24B01J19/00B33Y80/00
CPCB01J19/2415B01J19/0053B01J19/006B33Y80/00B01J2219/00765
Inventor 郭凯赵双飞圣莲珠何伟朱宁
Owner NANJING UNIV OF TECH
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