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Metal nanoparticle loaded activated carbon and production equipment thereof

A technology of metal nanoparticles and production equipment, which is applied in the separation of dispersed particles, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc. problem, to achieve the effect of reducing energy consumption and uniform particle size distribution

Pending Publication Date: 2019-02-22
CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional production equipment is composed of mixing equipment and drying equipment. During the production process, a large amount of material transfer is involved, which consumes manpower. Although manual operation can be saved by automatic feeding equipment, the high impact force of automatic feeding equipment is also a kind for activated carbon itself. At the same time, if the impregnation process chooses to use a volatile solution such as ammonia water, the solvent will also be volatilized during the material transfer process, which will not only affect the health of the operator, but also pollute the environment

Method used

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  • Metal nanoparticle loaded activated carbon and production equipment thereof
  • Metal nanoparticle loaded activated carbon and production equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] 1) Preparation of metal nanoparticle dispersion: Weigh 8.5g of nano-copper oxide, 0.8g of nano-zinc oxide, 0.6g of nano-titanium oxide, 0.1g of nano-silver oxide, 1.2g of hexamethyltetramine, prepare methanol aqueous solution 100g, methanol The volume ratio with water is 0.8:1;

[0066] 2) Weigh 231g of coal-based columnar activated carbon with a particle size of 1.8mm-2.2mm;

[0067] 3) fully mixing the above-mentioned metal nanoparticle dispersion with the activated carbon carrier;

[0068] 4) placed in a nitrogen atmosphere at 100°C, and dried with a moisture content of ≤1.2%, that is, to obtain a metal nanoparticle-loaded activated carbon with a metal nanoparticle loading of 4.32% of the mass of the activated carbon;

[0069] 5) Conduct harmful gas protection time test.

Embodiment 2

[0071] 1) Preparation of metal nanoparticle dispersion: Weigh 7g of nano-copper oxide, 1g of nano-zinc oxide, 2g of nano-molybdenum trioxide, 0.4g of nano-tungsten trioxide, 1g of triethylenediamine, and prepare 50g of methanol aqueous solution to make metal nanoparticle Particle dispersion, the volume ratio of methanol to water is 1:1;

[0072] 2) Weigh 124g of coal-based columnar activated carbon with a particle size of 0.8mm-1.2mm;

[0073] 3) fully mixing the above-mentioned metal nanoparticle dispersion with the activated carbon carrier;

[0074] 4) placed in an air atmosphere at 110°C, and dried at least with a moisture content of ≤1.2%, that is, to obtain a metal nanoparticle-loaded activated carbon with a metal nanoparticle loading of 8.47% of the mass of the activated carbon;

[0075] 5) Conduct harmful gas protection time test.

Embodiment 3

[0077] 1) Preparation of metal nanoparticle dispersion: Weigh 8g of nano-copper oxide, 1g of nano-cuprous oxide, 0.5g of nano-nickel oxide, 0.5g of nano-titanium oxide, 2g of diethylenetriaminepentaacetic acid, prepare 250g of methanol aqueous solution, methanol and The volume ratio of water is 1.1:1;

[0078] 2) Weigh 424g of coal-based columnar activated carbon with a particle size of 3.8mm-4.2mm;

[0079] 3) fully mixing the above-mentioned metal nanoparticle dispersion with the activated carbon carrier;

[0080] 4) placed in an air atmosphere at 105°C, and dried at least with a moisture content of ≤1.2%, that is, to obtain a metal nanoparticle-loaded activated carbon with a metal nanoparticle loading of 2.36% of the mass of the activated carbon;

[0081] 5) Conduct harmful gas protection time test.

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Abstract

The invention discloses metal nanoparticle loaded activated carbon. According to the metal nanoparticle loaded active carbon, metal nanoparticle dispersion liquid and an activated carbon carrier are fully mixed and then are put into high-temperature airflow to be dried so as to obtain the metal nanoparticle loaded activated carbon, the loading capacity of metal nanoparticles is 2-14% of the mass of the activated carbon carrier, and the mass of the metal nanoparticle dispersion liquid is 48-70% of the mass of the activated carbon carrier. The invention further discloses related production equipment used for the metal nanoparticle loaded activated carbon and a preparation method for the metal nanoparticle loaded activated carbon. The metal nanoparticle loaded activated carbon obtained by utilizing the preparation method for the metal nanoparticle loaded activated carbon has the advantages that the particle size distribution of the loaded metal nanoparticles is uniform, the physical adsorption performance and the chemical catalytic performance of the activated carbon are balanced and efficient, a preparation process is simple, and non-polar harmful gas such as benzene vapor, chloroethane vapor and formaldehyde and strong-polarity harmful gas such as cyanogen chloride and hydrocyanic acid can be effectively adsorbed.

Description

technical field [0001] The invention belongs to the field of special activated carbon production technology, and relates to a metal nanoparticle-loaded activated carbon and production equipment thereof. Background technique [0002] Activated carbon is a class of inorganic materials mainly made of carbonaceous materials with a unique intrinsic adsorption structure. It is usually used in the fields of toxic gas purification, toxic sewage treatment, chemical purification and separation. Loaded activated carbon refers to loading different types of metal elements in different types of micropores in activated carbon by impregnation, so that activated carbon has chemical catalytic effect while ensuring physical adsorption. The impregnated and loaded activated carbon not only has excellent adsorption properties for conventional non-polar gases, but also has a good adsorption effect for highly polar, highly toxic and harmful gases. At the same time, for special difficult-to-adsorb ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89B01J23/888B01J23/80B01J23/755B01D53/86
CPCB01D53/86B01J23/755B01J23/80B01J23/8885B01J23/8953
Inventor 赵宇岳凯杨鑫吴双九
Owner CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
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