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Preparation method of carbon-containing carrier containing cross-linked intercommunicated micron pore channels

A carbon carrier and pore technology, which is applied in the field of preparation of carbon-containing carriers, can solve problems such as the inability to form unobstructed pores, and achieve the effects of improving rapid adsorption capacity, high surface area, and improving mass transfer effect

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

This method only combines the two substances through adhesives through mechanical mixing, and cannot form smooth channels.

Method used

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  • Preparation method of carbon-containing carrier containing cross-linked intercommunicated micron pore channels
  • Preparation method of carbon-containing carrier containing cross-linked intercommunicated micron pore channels
  • Preparation method of carbon-containing carrier containing cross-linked intercommunicated micron pore channels

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Roast the silicon-aluminum composite soil at 600°C in a high-temperature furnace, mix 978g with 109g of activated carbon and 100g of polyethylene fiber silk, add 1359g of silica sol with a content of 20% and an appropriate amount of water, mix well, knead and extrude, 90 Dry at ℃ for 6 hours, roast at 300℃ for 4 hours under nitrogen protection, soak in DMF for 24 hours, filter out the solids and dry them, circulate the solids with an aqueous solution containing 1060g of sodium hydroxide for 5 hours, then filter them, dry at 90 for 6 hours, and use nitrogen protection conditions Calcined at 900°C for 6 hours to obtain composite carrier A, the properties of composite carrier A are shown in Table 1.

Embodiment 2

[0033] Roast the silicon-aluminum composite soil at 700°C in a high-temperature furnace, mix 1111g with 444g of activated carbon and 231g of polyester fiber filaments, add 1945g of silica sol with a content of 20% and an appropriate amount of water, mix well, knead and extrude, 90 Dry at ℃ for 6 hours, roast at 280℃ for 4 hours under nitrogen protection, soak in acetone for 24 hours, filter out the solids and dry them, circulate the solids with an aqueous solution containing 1204g of sodium hydroxide for 5 hours, filter them, and dry them at 90 for 6 hours, under nitrogen protection conditions Calcined at 700°C for 6 hours to obtain composite carrier B, the properties of composite carrier B are shown in Table 1.

Embodiment 3

[0035] Roast the silicon-aluminum composite soil at 800°C in a high-temperature furnace, mix 1041g with 1040g of activated carbon and 161g of acrylic fiber filaments, add 2601g of silica sol with a content of 20% and an appropriate amount of water, mix well, knead and extrude, 90°C Dry for 6 hours, roast at 270°C for 4 hours under nitrogen protection, soak in acetone for 24 hours, filter out the solids and dry them, circulate the solids with an aqueous solution containing 1127g of sodium hydroxide for 5 hours, then filter them, and dry them at 90 for 6 hours, under nitrogen protection conditions Calcined at 800°C for 6 hours to obtain composite carrier C, the properties of composite carrier C are shown in Table 1.

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Abstract

The invention discloses a carbon-containing carrier containing cross-linked intercommunicated micron pore channels and a preparation method of the carbon-containing carrier. The preparation method comprises the following steps of: (1) roasting silicon-aluminum composite soil at a high temperature, and treating the composite soil to obtain modified silicon-aluminum composite soil; (2) in the presence of water, uniformly mixing the modified silicon-aluminum composite soil, activated carbon, organic fibers and a binder, and carrying out forming and drying to obtain particles A; (3) dissolving and removing organic fibers in the particles A by using an organic solvent to obtain a material C; and (4) introducing the material C into a caustic soda solution for soaking treatment, filtering out the solution to obtain a material, and washing, drying and roasting the material to obtain the carbon-containing carrier. The carrier obtained by the preparation method is good in mechanical property, has a stepped pore size distribution through pore channel structure, and is beneficial to diffusion and adsorption of organic matters in pore channels.

Description

technical field [0001] The invention belongs to the technical field of catalytic materials, in particular to a preparation method of a carbon-containing carrier containing cross-linked and interconnected micron pores. Background technique [0002] The ozone catalytic oxidation process can treat organic pollutant wastewater that is difficult to biochemically degrade COD. Hydroxyl radicals are generated through ozone catalysis, which react with organic pollutants in the sewage, and the pollutants are completely degraded into carbon dioxide and water, thereby removing organic matter in the water. When conventional catalysts treat organic pollutants, the catalytic activity of the catalyst is difficult to achieve the expected effect due to insufficient adsorption activity. In order to further improve the removal rate of organic pollutants, the development of new catalytic materials with high adsorption performance with micro-nano pore structure can efficiently enrich organic matt...

Claims

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Application Information

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