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High-adsorbability hydrocarbon adsorption material and related preparation method

An adsorption material and high adsorption technology, which is applied in the field of hydrocarbon adsorption materials and environmental protection, can solve the problems affecting the normal operation of the engine and the reduction of intake air flow

Active Publication Date: 2020-07-07
上海星缇新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Traditional hydrocarbon adsorption materials will add fibers to improve the adsorption performance, which will lead to a decrease in the intake flow rate. At the same time, after the fibers have been circulated for a long time, the fine particles falling off the fibers will enter the engine system, seriously affecting the normal operation of the engine. run

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  • High-adsorbability hydrocarbon adsorption material and related preparation method
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  • High-adsorbability hydrocarbon adsorption material and related preparation method

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preparation example Construction

[0039] The preparation method of the above-mentioned highly adsorbable hydrocarbon adsorption material comprises the following steps:

[0040] (1) pickling the single-walled carbon nanotubes to remove impurities, and then pre-mixing the purified single-walled carbon nanotubes with a solvent in a mechanically stirred manner;

[0041] (2) High-power ultrasonic waves disperse the single-wall carbon nanotubes, refine the mineral fillers with a ball mill, and then uniformly mix with the single-wall carbon nanotubes;

[0042] (3) The mixture of the single-walled carbon nanotubes and the mineral filler is first produced into a sheet by a calender, and then the solvent is removed through an online high-temperature drying tunnel to prepare a sheet of a highly adsorbable hydrocarbon adsorption material.

Embodiment 1

[0047] (20% by weight single-wall carbon nanotube+70% by weight diatomaceous earth+10% by weight PVDF)

[0048] (1) pickling the single-walled carbon nanotubes to remove impurities, and then pre-mixing the purified single-walled carbon nanotubes with a solvent in a mechanically stirred manner;

[0049] (2) High-power ultrasonic waves disperse the single-wall carbon nanotubes, refine the mineral fillers with a ball mill, and then uniformly mix with the single-wall carbon nanotubes;

[0050] (3) The mixture of the single-walled carbon nanotubes and the mineral filler is first produced into a sheet by a calender, and then the solvent is removed through an online high-temperature drying tunnel to prepare a sheet of a highly adsorbable hydrocarbon adsorption material.

[0051] SEM (scanning electron microscope) was used to measure the distribution of the adsorption pore size, and the result was 2 nm to 50 nm.

Embodiment 2

[0053] (30% by weight single-wall carbon nanotube+60% by weight diatomaceous earth+10% by weight PVDF)

[0054] (1) pickling the single-walled carbon nanotubes to remove impurities, and then pre-mixing the purified single-walled carbon nanotubes with a solvent in a mechanically stirred manner;

[0055] (2) High-power ultrasonic waves disperse the single-wall carbon nanotubes, refine the mineral fillers with a ball mill, and then uniformly mix with the single-wall carbon nanotubes;

[0056] (3) The mixture of the single-walled carbon nanotubes and the mineral filler is first produced into a sheet by a calender, and then the solvent is removed through an online high-temperature drying tunnel to prepare a sheet of a highly adsorbable hydrocarbon adsorption material.

[0057] SEM (scanning electron microscope) was used to measure the distribution of the adsorption pore size, and the result was 2 nm to 50 nm.

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Abstract

The invention provides a high-adsorbability hydrocarbon adsorption material. The composite material comprises 20-40 parts by weight of single-walled carbon nanotubes and 50-70 parts by weight of a mineral filler, wherein the single-walled carbon nanotubes are dispersed to form a three-dimensional reticular structure, and the mineral filler is dispersed in meshes of the three-dimensional reticularstructure and abuts against the inner walls of the meshes. The diameter of the single-walled carbon nanotubes is 1.5 nm to 2 nm, the length of the single-walled carbon nanotubes is 5-10 [mu]m, and thenumber of the single-walled carbon nanotubes is about 10<15> / g. The mineral filler is diatomite. The adsorption pore size of the high-adsorbability hydrocarbon adsorption material ranges from 2 nm to50 nm. Related methods of preparation are also provided. The high-adsorbability hydrocarbon adsorption material is high in adsorbability, capable of reducing the risk that tiny particles enter an engine, ingenious in design, simple in structure, easy and convenient to prepare, low in cost and suitable for large-scale application and popularization.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to the technical field of hydrocarbon adsorbing materials, in particular to a highly adsorbable hydrocarbon adsorbing material and a related preparation method. Background technique [0002] Carbon emissions have always been one of the most important issues in the automotive industry. The country has clear standards and time nodes for automotive carbon emissions. Automakers are in great need of materials and feasible solutions to reduce carbon emissions. [0003] Most of the domestic hydrocarbon adsorption products at this stage are activated carbon adsorption products, which are realized by physical adsorption of porous activated carbon particles. [0004] The larger the specific surface area of ​​activated carbon, the stronger the adsorption capacity. The adsorption effect is mainly provided by the three forms of macropores, transition pores and micropores; the si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30
CPCB01J20/205B01J20/30B01J20/3021B01J2220/42B01J2220/4806
Inventor 张晓东宋岳甘志星
Owner 上海星缇新材料有限公司