Carbon nanotube, device and method for preparing hydrocarbon by catalytic cracking through circulating intermittent pushing method

A technology of hydrocarbons and carbon nanotubes, applied in the direction of carbon nanotubes, carbon compounds, chemical instruments and methods, etc., can solve the problem that the cracking time of carbon source gas cannot be precisely controlled, and achieve simple structure, complete reaction and less impurities Effect

Pending Publication Date: 2022-01-07
成都莱尔纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a carbon nanotube, device and method prepared by catalytic cracking of hydrocarbons in a circulating intermittent method, which can control the carbon source gas under the action of the catalyst by controlling the intermittent time. The cracking time solves the problem that the cracking time of carbon source gas cannot be precisely controlled, thereby precisely controlling the cracking and growth time of carbon nanotubes, which is beneficial to control the quality of the prepared carbon nanotubes, and can adjust the intermittent time, that is, the cracking growth time and carbon The flow rate of the source gas realizes the common use of one equipment to prepare various carbon nanotubes, and the carrier circulates in the sealed system, and only the material is bagged and removed from the sealed system, which greatly improves the operation efficiency and safety reliability

Method used

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  • Carbon nanotube, device and method for preparing hydrocarbon by catalytic cracking through circulating intermittent pushing method
  • Carbon nanotube, device and method for preparing hydrocarbon by catalytic cracking through circulating intermittent pushing method
  • Carbon nanotube, device and method for preparing hydrocarbon by catalytic cracking through circulating intermittent pushing method

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Embodiment 1

[0044] Such as figure 1 , 5 , Shown in 6, a kind of device of the catalytic cracking hydrocarbon of a kind of circulation type intermittent push method:

[0045] It includes two end-to-end push generation units, and the push generation unit is composed of a feeding glove box 5, a tube furnace 8, a receiving glove box 6, and a discharging glove box 6, wherein the feeding glove box 5, the tube furnace Type furnace 8 and receiving glove box 6 are sequentially sealed and connected, and receiving glove box 6 is sealed and connected with discharging glove box 2 through connecting transition cabin 3; They are all sealed and connected with the feeding glove box 5 of the other transfer generation unit through a transfer transition chamber 4, thereby forming a closed closed loop connected end to end; inside the two transfer generation units, there are multiple carriers containing catalysts. With intermittent shifting, controlling the passing time of the carrier in the tube furnace 8 c...

Embodiment 2

[0058] Such as figure 1 , 5 , Shown in 6, a kind of device of the catalytic cracking hydrocarbon of a kind of circulation type intermittent push method:

[0059]It includes two end-to-end push generation units, and the push generation unit is composed of a feeding glove box 5, a tube furnace 8, a receiving glove box 6, and a discharging glove box 6, wherein the feeding glove box 5, the tube furnace Type furnace 8 and receiving glove box 6 are sequentially sealed and connected, and receiving glove box 6 is sealed and connected with discharging glove box 2 through connecting transition cabin 3; They are all sealed and connected with the feeding glove box 5 of the other transfer generation unit through a transfer transition chamber 4, thereby forming a closed closed loop connected end to end; inside the two transfer generation units, there are multiple carriers containing catalysts. With intermittent shifting, controlling the passing time of the carrier in the tube furnace 8 ca...

Embodiment 3

[0084] Embodiment 3 and embodiment 2 device, method, implementation steps are all the same, the difference is that the cracking furnace tube 7 of embodiment 3 is arranged in three or two, and the carbon source gas in each cracking furnace tube 7 The flow rate is 4.5m 3 / h, the diameter of the finally prepared carbon nanotubes is mainly distributed between 30-50nm.

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Abstract

The invention relates to the technical field of preparation of carbon nanotubes, and discloses a carbon nanotube, a device and a method for preparing hydrocarbon by catalytic cracking through a circulating intermittent pushing method. The device comprises a pushing generation unit formed by sequentially connecting a feeding glove box, a tubular furnace and a receiving glove box in a sealed mode. A carrier containing a catalyst is transferred in the pushing generation unit. The method comprises the steps of catalyst filling, pushing and preheating activation, catalytic cracking, carbon nanotube collection and carrier circulation. The carbon nanotube is in a hollow fiber shape. The device has the beneficial effects that the cracking growth time of the carbon nanotubes can be accurately controlled, the generation of amorphous carbon is avoided, the product quality is favorably improved, the device can be suitable for preparing various carbon nanotubes from different catalysts and different carbon source gases, a carrier circulates in a sealing system, and the operation efficiency, safety and reliability are greatly improved.

Description

technical field [0001] The invention relates to the technical field of carbon nanotube preparation, in particular to a carbon nanotube, a device and a method prepared by catalytically cracking hydrocarbons by a circular intermittent moving method. Background technique [0002] As a one-dimensional nanomaterial, carbon nanotubes are light in weight, perfectly connected in a hexagonal structure, and have many unusual mechanical, electrical, and chemical properties. In recent years, with the in-depth research of carbon nanotubes and nanomaterials, their broad application prospects are constantly showing. Since carbon nanotubes have a hollow structure, they can be used as miniature molds. That is, it can be filled with metals, oxides and other substances to prepare the thinnest nanoscale wires and the like, which will be used in future molecular electronic devices or nanoelectronic devices. It can also make carbon nanotube-reinforced plastics, carbon nanotube-reinforced cerami...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/16B82Y40/00
CPCC01B32/16B82Y40/00C01B2202/36Y02P20/133
Inventor 岳山岳凡钦
Owner 成都莱尔纳米科技有限公司
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