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Activated carbon composite material with three-dimensional porous structure and preparation method thereof

A technology of three-dimensional channels and composite materials, which is applied in the field of composite materials and preparations with three-dimensional channel structures, can solve the problems of poor adsorption effect, easy wear of activated carbon catalysts, insufficient driving force, etc., to improve the ability to deal with organic pollutants, The effect of improving the rapid adsorption capacity and increasing the adsorption reaction rate

Active Publication Date: 2021-07-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional catalysts are mainly made of activated carbon, ceramsite, and alumina carriers loaded with active metals. A single activated carbon catalyst is easy to wear and has a high loss rate during use; ceramsite catalysts have a low specific surface area and low activity; alumina The catalyst has a single pore structure and is not suitable for treating complex composition pollutants
When conventional catalysts are used to treat organic pollutants, due to the poor adsorption effect on complex molecular components, the reaction rate is low and the driving force is insufficient. It is difficult to achieve the removal effect of pollutants at high concentrations, so the activity of treating organic pollutants is affected.

Method used

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  • Activated carbon composite material with three-dimensional porous structure and preparation method thereof
  • Activated carbon composite material with three-dimensional porous structure and preparation method thereof
  • Activated carbon composite material with three-dimensional porous structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] After mixing activated carbon and inorganic oxide composite soil treated at 700°C, add 10% by mass of alkali-soluble carboxymethyl cellulose fiber chopped slurry and mix evenly, then add 30% by mass of sodium silicate binder After kneading evenly, extrude into strips, dry at 90°C for 4 hours, and cure for 3 hours at 270°C under the protection of nitrogen to obtain a precursor. Take the precursor and add it to a sodium hydroxide solution with a mass concentration of 8.0%. After circulating the sodium hydroxide solution for 3 hours, filter it, dry the solid particles at 90°C for 6 hours, and roast them under the protection of nitrogen at 750°C for 3 hours to obtain the activated carbon composite carrier A1. The amounts of reagents used are listed in Table 1. The properties of the composite carrier are shown in Table 2.

[0037] The composite carrier A1 was taken, impregnated with an impregnation solution containing Ce-Cu, dried at 110°C for 10 hours, and calcined at 550°...

Embodiment 2

[0039] After mixing activated carbon and inorganic oxide composite soil treated at 800°C, add 20% by mass of alkali-soluble polyester cellulose fiber chopped slurry and mix evenly, then add 25% by mass of sodium silicate binder and knead After uniformity, extrude into strips, dry at 110°C for 4 hours, and cure for 3 hours at 270°C under the protection of nitrogen to obtain a precursor. Take the precursor and add it to a sodium hydroxide solution with a mass concentration of 7.0%. After circulating the sodium hydroxide solution for 3 hours, filter it, dry the solid particles at 110°C for 4 hours, and roast them under the protection of nitrogen at 650°C for 5 hours to obtain the activated carbon composite carrier B1. The amounts of reagents used are listed in Table 1. The properties of the composite carrier are shown in Table 2.

[0040] The composite carrier B1 was taken, impregnated with an impregnation solution containing Ce-Fe, then dried at 110°C for 10 hours, and calcined...

Embodiment 3

[0042] After mixing activated carbon and inorganic oxide composite soil treated at 900°C, add 15% by mass of alkali-soluble hydroxyethyl cellulose fiber chopped slurry and mix evenly, then add 30% by mass of sodium silicate binder After kneading evenly, extrude into strips, dry at 100°C for 6 hours, and cure for 3 hours at 300°C under the protection of nitrogen to obtain a precursor. Take the precursor and add it to a sodium hydroxide solution with a mass concentration of 8.0%. After circulating the sodium hydroxide solution for 4 hours, filter it, dry the solid particles at 110°C for 8 hours, and roast them under the protection of nitrogen at 700°C for 5 hours to obtain the activated carbon composite carrier C1. The amounts of reagents used are listed in Table 1. The properties of the composite carrier are shown in Table 2.

[0043] The composite carrier C1 was taken, impregnated with an impregnating solution containing Ce-Mn, then dried at 110°C for 10 hours, and calcined a...

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Abstract

The invention provides an activated carbon composite material with a three-dimensional porous structure and a preparation method thereof. The composite material comprises activated carbon, inorganic oxide composite soil, a 4A molecular sieve and a binder component. The composite material is provided with three-dimensional pore channels, and the three-dimensional pore channels are communicated with one another through cross-linked intercommunicating pore channels. The preparation method comprises the following steps of: uniformly mixing various materials, treating the mixture with a sodium hydroxide solution, and performing separating, drying and roasting to obtain the composite material. The composite material obtained by the preparation method disclosed by the invention has a stable three-dimensional pore channel structure, and can well adsorb and remove organic pollutants.

Description

technical field [0001] The invention belongs to the technical field of catalytic materials, in particular to a composite material with a three-dimensional pore structure and a preparation method. Background technique [0002] A large number of organic pollutants produced in the process of industrial production have seriously affected the living conditions of human beings and the ecological environment, and have become an increasingly serious social and economic problem. In particular, it is more difficult to treat organic wastewater that is difficult to biodegrade. Ozone catalytic oxidation The technology is to generate hydroxyl radicals by stimulating ozone, and then undergo a series of free radical chain reactions with organic pollutants, and gradually degrade organic pollutants into harmless low-molecular-weight organic compounds, and finally degrade them into CO 2 、H 2 The technology of O and other mineral salts can effectively solve the problem of reducing COD in diffi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/70B01J29/76B01J32/00B01J20/20B01J20/30C02F1/28C02F1/72C02F1/78C02F101/30
CPCB01J29/7003B01J29/7607B01J29/7053B01J20/20B01J20/12B01J20/18C02F1/281C02F1/283C02F1/78C02F1/725B01J2220/4806B01J2220/4812B01J2220/4825B01J2220/42B01D2253/11B01D2253/102B01D2253/1085C02F2101/30
Inventor 蒋广安赵越单广波李宝忠郭宏山
Owner CHINA PETROLEUM & CHEM CORP
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