A method for preparing fullerene-like carbon spheres by micro-oxygen ablation at the end of high-temperature carbonization of biomass

A technology of fullerene carbon spheres and high-temperature carbonization, applied in chemical instruments and methods, carbon compounds, nano-carbons, etc., can solve problems such as unfavorable environment and ecological protection, high operational risk, and low fullerene yield. Achieve the effects of saving oil consumption, good economic benefits, and being conducive to ecology and environmental protection

Active Publication Date: 2022-05-27
GUANGXI ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Although the preparation method of fullerene has been improved several times, the raw materials used are mainly coal, petroleum, natural gas, graphite and other mineral raw materials and benzene, toluene and other chemical raw materials, and few green and renewable biomass raw materials are used to prepare rich The report on allerenes, among them, the invention patent with the publication number CN 102060290B discloses "a method for producing fullerenes by using biomass combustion", although the purpose of using renewable biomass as raw materials to prepare fullerenes has been achieved , but there are still many deficiencies, mainly in: 1. The operation is very dangerous. 4 to 8.0x10 4 It is carried out in 99.9% pure oxygen of Pa; the partial pressure of oxygen in air is about 2.0x10 4 Pa, the oxygen pressure of this patent is 2.25 to 4 times the partial pressure of oxygen in the air. The combustion of biomass in such a high concentration of pure oxygen will lead to violent combustion, difficult to control, and high risk; 2. Low yield , due to the violent combustion reaction of biomass in high-concentration pure oxygen, most of it turns into ashes, the loss of biomass is serious, and the yield is low; 3. The economic efficiency is low, and the method needs to use catalysts (Co, Ni, Sc, V , Cr, Mn, Fe, Cu, Y, Nb, Mo, Pd, W, Au), and pure oxygen is used as a combustion aid, and the yield of fullerene is extremely low, so the economic benefit is bound to be very low; 4. Mass production Substances burn ineffectively in pure oxygen, which is not conducive to environmental and ecological protection

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  • A method for preparing fullerene-like carbon spheres by micro-oxygen ablation at the end of high-temperature carbonization of biomass
  • A method for preparing fullerene-like carbon spheres by micro-oxygen ablation at the end of high-temperature carbonization of biomass
  • A method for preparing fullerene-like carbon spheres by micro-oxygen ablation at the end of high-temperature carbonization of biomass

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Embodiment 1

[0039] The present embodiment is combined with the attached Figure 1 A method for preparing fullerene-like carbon balls from micro-oxygen ablation at the end of biomass high temperature carbonization of the present invention is described, Figure 1 For the experimental apparatus of steps (2) to (5), the apparatus comprises an inert gas cylinder 1, an air cylinder 2, wherein the inert gas cylinder 1 and the air cylinder 2 are connected with the gas mixing device 3, respectively, to be mixed into a micro-oxygen environment in the gas mixing device 3, the gas mixing device 3 and the inert gas cylinder 1 is provided with a first flow meter 7, the gas mixing device 3 and the air cylinder 2 is provided with a second flow table 8, the first flow table 7 and the second flow table 8 for observing the flow of gas The other end of the gas mixing device 3 is connected to one end of the quartz tubular furnace 4 for injecting the microoxide in the gas mixing device 3 into the reaction test tube ...

Embodiment 2

[0048] The present embodiment is combined with the attached Figure 1 A method for preparing fullerene-like carbon balls from micro-oxygen ablation at the end of biomass high temperature carbonization of the present invention is described, Figure 1 For the experimental apparatus of step (2) to step (5), the apparatus comprises an inert gas cylinder 1, an air cylinder 2, wherein the inert gas cylinder 1 and the air cylinder 2 are connected with the gas mixing device 3, respectively, to be mixed into a micro-oxygen environment in the gas mixing device 3, the gas mixing device 3 and the inert gas cylinder 1 is provided with a first flow table 7, the gas mixing device 3 and the air cylinder 2 is provided with a second flow table 8, the first flow table 7 and the second flow table 8 for observing the flow of gas The other end of the gas mixing device 3 is connected to one end of the quartz tubular furnace 4 for injecting the microoxide in the gas mixing device 3 into the reaction test tub...

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Abstract

The invention provides a method for preparing fullerene-like carbon spheres by micro-oxygen ablation at the end of high-temperature carbonization of biomass, which relates to the technical field of fullerene preparation and includes the following steps: (1) preparation of biomass raw materials, (2) biomass thermal cracking of biomass, (3) carbonization of biomass, (4) graphitization of biomass, (5) end micro-oxygen ablation; the production process of the present invention has high safety, good operability, and the quality of fullerene products Well, the conversion rate of biomass is high, the economic benefits are good, and it is beneficial to ecological and environmental protection.

Description

Technical field [0001] The present invention relates to the field of fullerene preparation technology, specifically to a biomass high temperature carbonization terminal micro-oxygen ablation preparation of fullerene carbon sphere method. Background [0002] Fullerene is a class of spherical crystals composed of a flat 6-sided (may also be sandwiched with 5-sided) structural units of carbon, and a soccer-like fullerene composed of 20 hexagons composed of 60 carbon atoms is called C60, also known as "carbon football", with single-walled and multi-walled structures, in addition to spherical, there are a variety of deformations, can be elliptical, or tubular structure, can be called fullerene. Fullerene is a material with many excellent properties, its hardness is stronger than diamond; its degree of elasticity (ductility) is 100 times stronger than steel; its conductivity is stronger than copper, and its weight is only one-sixth of that of copper. It is conceivable that our future l...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C01B32/184C01B32/194
CPCC01B32/184C01B32/194
Inventor杜奇石冼学权唐培朵黎演明龙思宇黄日波
OwnerGUANGXI ACAD OF SCI