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Reaction device and method for producing graphene or carbon nanotubes

A carbon nanotube and reaction device technology, which is applied in the field of reaction devices for producing graphene or carbon nanotubes, and can solve the problem that there is no efficient and continuous production device and technological process, no industrialized implementation, and inability to realize production processes, etc. problems, to achieve the effect of improving the efficiency of the production process, improving the fluidity, and avoiding coking

Active Publication Date: 2015-05-27
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The prerequisite for the wide application of carbon nanomaterials is the development and maturity of low-cost batch technology. At present, gas-phase chemical deposition is mostly used in the production of carbon nanotubes. The process and reaction of fluidized bed production of carbon nanotubes proposed in the prior art device, and cannot achieve a fully continuous production process, the addition of catalyst or the removal of the final product is carried out in batches
However, the process of preparing graphene by vapor phase chemical deposition has not yet been implemented industrially, and there are no reports of efficient and continuous production devices and process flow.

Method used

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  • Reaction device and method for producing graphene or carbon nanotubes
  • Reaction device and method for producing graphene or carbon nanotubes

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Embodiment 1

[0032] This embodiment provides a reaction device for producing graphene or carbon nanotubes, and the application of this device in the production of graphene or carbon nanotubes.

[0033] Such as figure 1 As shown, the present invention provides a reaction device for producing graphene or carbon nanotubes, which includes an expansion section 1 , a reaction section 2 and a plurality of storage bins 3 . Wherein: the upper end of the expansion section 1 is connected with a catalyst feeding device 4; the reaction section 2 is connected with the lower end of the expansion section 1, and a gas distribution plate 21 is axially movable in the reaction section 2, and the gas The distribution plate 21 is provided with a plurality of ventilation holes (not shown in the figure), the outside of the reaction section 2 is surrounded by an electric furnace 5, and the lower end of the reaction section 2 is connected with a first air inlet pipe 22; 3 is connected to the reaction section 2 thr...

Embodiment 2

[0044] This embodiment provides a process for producing graphene or carbon nanotubes.

[0045] The present invention also provides a method for producing graphene or carbon nanotubes, the method for producing graphene or carbon nanotubes adopts the above-mentioned reaction device for producing graphene or carbon nanotubes (such as figure 1 and figure 2 shown), the method for producing graphene or carbon nanotubes may further comprise the steps:

[0046] a) providing a catalyst, which is put into the catalyst feeding device 4;

[0047] b) Inject argon or nitrogen from the first inlet pipe 22 connected to the lower end of the reaction section 2, and inject the argon or nitrogen into the reaction through a plurality of air holes provided on the gas distribution plate 21 in the reaction section 2. In the section 2, at the same time, open the electric furnace 5 surrounding the outside of the reaction section 2;

[0048] c) After the electric furnace 5 finishes heating the react...

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Abstract

The invention provides a reaction device and method for producing graphene or carbon nanotubes. The reaction device comprises an enlarging section, a reaction section and a plurality of bins, wherein the upper end of the enlarging section is connected with a catalyst feeding device, the reaction section is connected to the lower end of the enlarging section, gas distribution boards can axially move and pass in the reaction section, a plurality of vent holes are formed in the gas distribution boards, an electric furnace surrounds the reaction section externally, the lower end of the reaction section is connected with a first gas inlet pipe, the bins are connected with the reaction section through inlet pipes, valves are arranged on the inlet pipes, and protection gas inlets are formed in the bins. According to the reaction device and method for producing the graphene or carbon nanotubes, continuous addition of a catalyst and continuous extraction of a solid-phase product can be realized, the production can be carried out continuously, and the production process efficiency is greatly improved.

Description

technical field [0001] The present invention relates to a reaction device and method, in particular to a reaction device and method for producing graphene or carbon nanotubes in the technical field of chemical equipment. Background technique [0002] Carbon nanomaterials such as carbon nanotubes and graphene have been research hotspots in the field of carbon materials in the past ten years, because of their good electrical conductivity, physical and chemical stability and high mechanical strength, they are used in conductive additives, catalysis and composite reinforcement. Tough materials and other aspects have good application prospects. [0003] The premise of the wide application of carbon nanomaterials is the development and maturity of low-cost batch technology. At present, the gas phase chemical deposition method is mostly used in the production of carbon nanotubes. The process and reaction of the fluidized bed production of carbon nanotubes proposed in the prior art ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/04C01B31/02B82Y40/00C01B32/162C01B32/184
Inventor 宁国庆
Owner CHINA UNIV OF PETROLEUM (BEIJING)