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Porous composite material for generating electric arcs in microwaves and preparation method thereof

A technology of porous composite materials and porous materials, applied in the field of porous composite materials and their preparation, can solve the problems of low working temperature, unsatisfactory efficiency and product composition, etc.

Active Publication Date: 2020-05-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many patents disclosing the technology of using this characteristic of microwave to carry out thermal cracking, such as patent CN102585860A, patent CN103252226A, patent CN106520176A, etc., but they all use ordinary microwave sensitive materials such as silicon carbide to generate heat and transmit heat in a microwave field. To the pyrolysis material, so as to achieve the purpose of pyrolysis, the working temperature of this method is not high, and the efficiency and product composition are not ideal

Method used

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  • Porous composite material for generating electric arcs in microwaves and preparation method thereof
  • Porous composite material for generating electric arcs in microwaves and preparation method thereof
  • Porous composite material for generating electric arcs in microwaves and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] (1) Measure 500ml of graphene oxide aqueous dispersion (JCGO-95-1-2.6-W, 10mg / ml, Nanjing Jicang Nano Technology Co., Ltd.) in a beaker;

[0062] (2) Take 2g of the porous skeleton made of phenolic resin (phenolic foam, average pore size 300 μm, porosity 99%, Changshu Oasis Flower Foam Co., Ltd.) and soak it into the graphene oxide aqueous dispersion, so that the solution fully enters the pores of the porous skeleton;

[0063] (3) Take out the soaked porous material, put it in a stainless steel tray, heat it in an oven at 180°C for 1 hour, dry it and pre-reduce it;

[0064] (4) Put the dried porous material into a household microwave oven (700w) for high-heat microwave treatment for 2 minutes, the pre-reduced graphene oxide is reduced to graphene, and the phenolic resin skeleton is carbonized into a carbon skeleton (average pore size 200 μm, porosity 99%) , to obtain a graphene-loaded carbon porous framework porous composite material that generates arcs in microwaves, a...

Embodiment 2

[0066] (1) Measure 500ml of carbon nanotube dispersion (XFWDM, 100mg / ml, Nanjing Xianfeng Nano Material Technology Co., Ltd.) into a beaker;

[0067] (2) Take 2 g of porous skeleton made of phenolic resin (phenolic foam, average pore size 200 μm, porosity 99%, Changshu Oasis Flower Foam Co., Ltd.) and soak it into the carbon nanotube dispersion, so that the carbon nanotube dispersion fully enters the porous skeleton the tunnel;

[0068] (3) Take out the soaked porous material, place it in a stainless steel tray, heat it in an oven at 80°C for 5 hours, and dry it;

[0069] (4) Put the dried porous material into a tube furnace, and carbonize it at 800° C. for 1 h under a nitrogen atmosphere to obtain a porous composite material (the average pore diameter of the carbon skeleton is 140 μm, and the pores rate of 99%), carbon nanotubes accounted for 30% of the total mass of the porous composite material.

Embodiment 3

[0071](1) Measure 500ml of carbon nanotube dispersion (XFWDM, 100mg / ml, Nanjing Xianfeng Nano Material Technology Co., Ltd.) into a beaker;

[0072] (2) Take 5 g of silicate fiber cotton-like porous skeleton (average pore diameter 150 μm, porosity 90%, Shandong Luyang Energy Saving Materials Co., Ltd.) soaked in the carbon nanotube dispersion, extruded several times to make the dispersion The liquid fully enters the pores of the porous framework;

[0073] (3) Take out the soaked porous material, put it in a stainless steel tray, place it in a 150° C. oven and heat it for 2 hours, and dry it to obtain a porous composite material with a carbon nanotube loaded silicate fiber porous skeleton that generates an arc in the microwave, carbon The nanotube accounts for 10% of the total mass of the porous composite material.

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Abstract

The invention relates to a porous composite material for generating electric arcs in microwaves and a preparation method thereof. The porous composite material comprises an inorganic porous skeleton and a carbon material loaded on the inorganic porous skeleton. The carbon material accounts for 0.001%-99% of the total mass of the porous composite material; the inorganic porous skeleton is an inorganic material with a porous structure, wherein the average pore diameter is 0.01-1000 microns and the porosity is 1%-99.99%. The porous composite material can be obtained by fully immersing the inorganic porous skeleton or an inorganic porous skeleton precursor into the carbon material and / or a carbon material precursor solution or dispersion liquid, and then heating, drying and carbonizing. The material has excellent mechanical properties, can generate electric arcs in a microwave field to quickly generate high temperature, and can be used in the fields of microwave high-temperature heating, biomass cracking, waste polymer material cracking, petrochemical cracking, carbon fiber composite material recovery, garbage treatment, VOC waste gas treatment, COD sewage treatment, high-temperature catalysis and the like.

Description

technical field [0001] The invention relates to the technical field of microwave heating, in particular to a porous composite material capable of generating arcs in microwaves and a preparation method thereof. Background technique [0002] More than 90% of chemical raw materials come from fossil energy such as petroleum, shale gas and coal. CO is produced in the non-renewable use of fossil energy 2 The development of environmentally friendly renewable energy has become one of the hot spots in the current energy field. For more sustainable economic and social development, there is an urgent need to replace fossil energy with renewable biomass energy. Among them, vegetable oil has become a research hotspot because of its low price and large-scale cultivation. From 2012 to 2013, the world produced a total of 462 million tons of major vegetable oils such as palm oil, rapeseed oil, sunflower oil and soybean oil. The rapid development of pyrolysis technology in recent years ha...

Claims

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Application Information

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IPC IPC(8): C04B38/08C04B35/524C04B35/622C04B35/80C04B35/52C04B35/84
CPCC04B38/08C04B35/524C04B35/622C04B35/52C04B2235/425C04B2235/422C04B2235/5232C04B38/0074C04B38/0054
Inventor 蒋海斌乔金樑张晓红刘文璐宋志海戚桂村高建明蔡传伦李秉海王湘赖金梅茹越张红彬韩朋张江茹姜超郭照琰
Owner CHINA PETROLEUM & CHEM CORP
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