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Metal-based autocatalytic reactor based on 3D printing as well as preparation method and application of metal-based autocatalytic reactor

A 3D printing and self-catalysis technology, applied in the field of reactors, can solve the problems of low mechanical strength, slow molding speed, and reduction of catalysts, and achieve the effects of increasing effective catalytic area, optimizing catalytic function, and facilitating new designs

Pending Publication Date: 2022-02-15
上海簇睿低碳能源技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the manufacturing process of the catalyst and the reactor is independent of each other, the molding speed is relatively slow, and the mechanical strength of the catalyst is low. Problems such as powdering, crushing and falling off in long-term use may lead to blockage of the catalyst or reactor pores and catalytic activity. reduce

Method used

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  • Metal-based autocatalytic reactor based on 3D printing as well as preparation method and application of metal-based autocatalytic reactor
  • Metal-based autocatalytic reactor based on 3D printing as well as preparation method and application of metal-based autocatalytic reactor
  • Metal-based autocatalytic reactor based on 3D printing as well as preparation method and application of metal-based autocatalytic reactor

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preparation example Construction

[0052] In this application, the applicant provides a metal-based autocatalytic reactor using 3D printing technology and its preparation method. The preparation method includes the following steps:

[0053] 1) Use 3D software to design the structure of the autocatalytic reactor, and the skeleton of the structure is filled with repeating structural units;

[0054] 2) Use metal powder as the printing material, set the printing parameters, and perform 3D printing in a protective atmosphere;

[0055] 3) Annealing to separate the printed part from the substrate;

[0056] 4) Roasting, reduction treatment.

[0057]In a specific embodiment, the three-dimensional software is selected from one of AutoCAD, 3DMAX, SolidWorks and Materialize Magics. For example, choose Materialize Magics. More specifically, use Materialize Magics to create the structural module, and then select the structure, that is, select a certain repeating structural unit to fill the skeleton structure of the autoca...

Embodiment 1

[0088] The preparation method of iron-based autocatalytic reactor in the present embodiment comprises the steps:

[0089] Step (1): Use the modeling software Materialize Magics to design a 3D model of a cylindrical reactor with a pore structure that has been optimized by the fluid simulation software (CFD). The diameter D of the reactor is 10mm, the height H is 50mm, and the bottom / top holes The diameter d of the reactor is 1.5mm, and the size of the internal filling repeating structural unit is 1.0mm in the XYZ direction, and the structural model of the 3D autocatalytic reactor is converted into stl. format.

[0090] Step (2): Prepare suitable metal powder as the printing material. The metal powder is made of iron. The particle size of the above metal powder is required to be 10-60 μm, the sphericity of the particles is not less than 95%, and the metal particles are guaranteed to be dry enough. Set the printing process parameters as follows: the laser power is 300W, ensuring ...

Embodiment 2

[0095] The preparation method of nickel-based autocatalytic reactor in the present embodiment comprises the steps:

[0096] Step (1): Use the modeling software Materialize Magics to design a 3D model of a cylindrical reactor with a pore structure that has been optimized by the fluid simulation software (CFD). The diameter D of the reactor is 10mm, the height H is 50mm, and the bottom / top holes The diameter d of is 1.5mm, the size of the repeating structural units filled inside is 1.0mm in the XYZ direction, and the structural model of the 3D self-catalytic reactor is converted into stl. format.

[0097] Step (2): Prepare suitable metal powder as the printing material. The metal powder is made of nickel. The particle size of the above metal powder is required to be 10-60 μm, the sphericity of the particles is not less than 95%, and the metal particles are guaranteed to be sufficiently dry. Set the printing process parameters as follows: the laser power is 350W, ensuring that th...

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Abstract

The invention provides a metal-based autocatalytic reactor based on 3D printing and a preparation method and application of the metal-based autocatalytic reactor. The preparation method comprises the following steps that: (1) a structure of the autocatalytic reactor is generated through three-dimensional software, and a framework of the structure is filled with repeated structural units; (2) metal powder is adopted as a printing raw material, printing parameters are set, and 3D printing is conducted under the protective atmosphere; 3) annealing is conducted: a printed piece is separated from a substrate; and 4) roasting and reduction treatment are conducted. The metal-based autocatalytic reactor integrally formed through the 3D printing technology has the double functions of a reactor and a catalyst, the integral forming speed is high, the structural precision is high, the mechanical strength is high, and the catalyst is not prone to falling off; and the problems that a traditional catalyst is insufficient in mechanical strength and prone to pulverization and breakage after long-term use to cause reaction channel blockage, and surface active components fall off to reduce reaction activity can be effectively solved.

Description

technical field [0001] The invention relates to the field of reactors, in particular to a metal-based autocatalytic reactor based on 3D printing and its preparation method and application. Background technique [0002] Catalyst and reactor are two important components of a catalytic system. Catalysts can change reaction pathways, improve reaction efficiency, or selectively produce target chemical substances, and their research mainly focuses on preparation methods, reaction mechanisms, structural characterization, and catalyst performance. Reactors have the important function of providing a suitable environment for various catalytic reactions. The research on reactors mainly focuses on reactor types and functionalization, enhanced heat and mass transfer, and reduced pressure drop. So far, the research on catalysts and reactors is still two different directions. The functional integration of catalysts and reactors for effective control of chemical reactions is still scarce....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/02B33Y80/00B33Y10/00B33Y70/00
CPCB01J8/02B33Y80/00B33Y10/00B33Y70/00
Inventor 孙予罕王慧胡振郑吕科白玉佳
Owner 上海簇睿低碳能源技术有限公司
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