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A micro reaction device based on hollow foam material and its application

A technology of micro-reaction and foam materials, applied in chemical/physical/physicochemical processes, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as difficult catalyst loading, low effective reaction area, complex preparation process, etc., to achieve Efficient heat transfer, wide range of materials and simple technical process

Active Publication Date: 2021-05-18
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a micro-reaction device based on hollow foam material and its application to solve the problems in the prior art such as low effective reaction area, low mass transfer efficiency, difficulty in loading catalyst, poor corrosion resistance, complicated preparation process, etc.

Method used

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  • A micro reaction device based on hollow foam material and its application
  • A micro reaction device based on hollow foam material and its application
  • A micro reaction device based on hollow foam material and its application

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application specific Embodiment approach

[0088] In the specific implementation of the micro-reaction device based on hollow foam material and its application, the present invention uses hollow foam material with different physical / chemical structures and different materials as the material for the main functional area of ​​the reaction. Interface, collecting cavity, fluid-tight barrier layer, hollow foam material microchannel wall reaction zone, design the micro reaction unit assembly of the micro reaction device based on hollow foam material according to the present invention, and enumerate the corresponding application specific implementation methods as follows:

[0089] Such as figure 1 As shown, it can be seen from the macroscopic appearance that the micro-reaction device uses hollow foam material as the main functional area of ​​the micro-reaction device. ) are connected in three dimensions to form a network structure of openings (b); wherein, the supporting skeleton (a) itself has a size-controllable, hollow mic...

Embodiment 1

[0124] This embodiment adopts the structural design of cylindrical micro-reaction unit components, see the attached Figure 19 . The main react ribbon consists of such as Figure 4 The shown physical structure or chemical structure is composed of hollow foam material with isotropic hollow microchannel pipe wall, and the macroscopic dimension of the hollow foam material cylinder is φ200mm, and the height is 500mm. Wherein, a is the inner cavity of the hollow microchannel; b is the inner wall surface of the hollow microchannel tube wall with a dense structure; c is the outer wall surface of the hollow microchannel tube wall with a dense structure. The wall body of the hollow microchannel is made of stainless steel, the outer diameter of the hollow microchannel is 2mm, and the inner diameter is 1mm. The micro reaction device composed of the reaction unit components is used for the preparation of glyoxylic acid, the fluid phase ① is a mixed solution, the solvent is tert-butanol,...

Embodiment 2

[0126] This embodiment adopts the structural design of cylindrical micro-reaction unit components, see the attached Figure 20 . The main reaction functional area is made of a hollow foam material, and the structure of the hollow microchannel tube wall of the hollow foam material is as follows: Figure 5 shown. The macroscopic dimensions of the hollow foam cylinder are φ300mm and 600mm high. Wherein, a is the inner cavity of the hollow microchannel; b is the inner wall surface of the hollow microchannel tube wall with a dense structure; c is the outer wall surface of the dense structure hollow microchannel tube wall through in-situ generation of catalytic active centers. The wall body of the hollow microchannel is made of pure silicon carbide, and the surface of the outer wall is prepared by ZSM-5 molecular sieve catalytic coating through in-situ hydrothermal synthesis reaction. The hollow microchannel has an outer diameter of 3 mm and an inner diameter of 1.5 mm. The micr...

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Abstract

The invention relates to the field of chemical reaction engineering, in particular to a micro reaction device based on hollow foam material and its application. The main functional area of ​​the micro-reaction device contains a hollow foam material, and the structure of the material is macroscopically constructed by a three-dimensionally connected support skeleton network, and the support skeleton itself is a three-dimensionally connected microchannel with a hollow structure. With the micro reaction device based on the hollow foam material of the present invention, the macroscopic three-dimensional communication opening size of the main functional area, the inner cavity size of the three-dimensional communication hollow microchannel, and the wall thickness of the hollow microchannel can all be adjusted. The micro reaction device has the following advantages: efficient material transfer and heat transfer in the macroscopic three-dimensional interconnected pore network, and the tube wall body of the hollow microchannel can effectively transfer the reactant-rich phase and product-rich phase in the reaction process. Insulation, heat generated or required by a reaction is transferred or exchanged across the body of the hollow microchannel wall.

Description

technical field [0001] The invention relates to the field of chemical reaction engineering, in particular to a micro reaction device based on hollow foam material and its application. Background technique [0002] A microreaction device is a three-dimensional structural element that can be used for chemical reactions and is manufactured with the help of special micromachining techniques on a solid matrix. Typically, they contain small channel sizes (less than 500 [mu]m in equivalent diameter) and a multiplicity of channels in which fluids flow and where desired reactions are required to take place. Due to its internal microstructure, the micro-reaction device has a very large surface area / volume ratio, which can reach hundreds or even thousands of times the specific surface area of ​​the stirred tank. The micro-reaction device has excellent heat and mass transfer capabilities, which can realize Instantaneous uniform mixing of materials and efficient heat transfer, so many r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/00B01J19/02
Inventor 张劲松高勇田冲杨振明杨晓丹
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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