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High-adsorption hydrocarbon adsorption material and related preparation method

An adsorption material and high adsorption technology, applied in the fields of hydrocarbon adsorption materials and environmental protection, can solve the problems of reducing the intake air flow and affecting the normal operation of the engine, and achieve the effects of simple structure, reduced risk of entering the engine, and easy preparation.

Active Publication Date: 2022-08-02
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-adsorption hydrocarbon adsorption material and related preparation method
  • High-adsorption hydrocarbon adsorption material and related preparation method
  • High-adsorption hydrocarbon adsorption material and related preparation method

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preparation example Construction

[0038] The preparation method of the above-mentioned highly absorbent hydrocarbon adsorption material comprises the following steps:

[0039] (1) pickling the single-walled carbon nanotubes to remove impurities, and then premixing the purified single-walled carbon nanotubes with a solvent by mechanical stirring;

[0040] (2) Dispersing the single-walled carbon nanotubes by high-power ultrasonic waves, refining the mineral filler with a ball mill, and then uniformly mixing with the single-walled carbon nanotubes;

[0041] (3) The mixture of the single-walled carbon nanotubes and the mineral filler is first rolled out by a calender, and then the solvent is removed through an online high-temperature drying tunnel to prepare a sheet of highly absorbent hydrocarbon adsorption material.

Embodiment 1

[0046] (20% wt single-wall carbon nanotubes + 70% wt diatomaceous earth + 10% wt PVDF)

[0047](1) pickling the single-walled carbon nanotubes to remove impurities, and then premixing the purified single-walled carbon nanotubes with a solvent by mechanical stirring;

[0048] (2) Dispersing the single-walled carbon nanotubes by high-power ultrasonic waves, refining the mineral filler with a ball mill, and then uniformly mixing with the single-walled carbon nanotubes;

[0049] (3) The mixture of the single-walled carbon nanotubes and the mineral filler is first rolled out by a calender, and then the solvent is removed through an online high-temperature drying tunnel to prepare a sheet of highly absorbent hydrocarbon adsorption material.

[0050] The distribution of adsorption pore size was measured by SEM (Scanning Electron Microscope), and the result was 2 nm to 50 nm.

Embodiment 2

[0052] (30% wt SWNT + 60% wt diatomaceous earth + 10% wt PVDF)

[0053] (1) pickling the single-walled carbon nanotubes to remove impurities, and then premixing the purified single-walled carbon nanotubes with a solvent by mechanical stirring;

[0054] (2) Dispersing the single-walled carbon nanotubes by high-power ultrasonic waves, refining the mineral filler with a ball mill, and then uniformly mixing with the single-walled carbon nanotubes;

[0055] (3) The mixture of the single-walled carbon nanotubes and the mineral filler is first rolled out by a calender, and then the solvent is removed through an online high-temperature drying tunnel to prepare a sheet of highly absorbent hydrocarbon adsorption material.

[0056] The distribution of adsorption pore size was measured by SEM (Scanning Electron Microscope), and the result was 2 nm to 50 nm.

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Abstract

The invention provides a high-adsorption hydrocarbon adsorption material, comprising single-walled carbon nanotubes and mineral fillers. The single-walled carbon nanotubes are dispersed to present a three-dimensional network three-dimensional structure, and the mineral fillers are dispersed in the meshes of the three-dimensional network three-dimensional structure. Against the inner wall of the mesh, the single-wall carbon nanotubes are 20 to 40 parts by weight, and the mineral filler is 50 to 70 parts by weight. The diameter of single-walled carbon nanotubes is 1.5 nm to 2 nm, the length of single-walled carbon nanotubes is 5 μm to 10 μm, and the number of single-walled carbon nanotubes in 1 g is about 10 15 indivual. The mineral filler is diatomaceous earth. The adsorption pore size of the highly adsorbable hydrocarbon adsorbent is in the range of 2 nm to 50 nm. Related preparation methods are also provided. The high-adsorption hydrocarbon adsorption material of the present invention has strong adsorption performance and can reduce the risk of tiny particles entering the engine.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to the technical field of hydrocarbon adsorption materials, in particular to a highly absorbent hydrocarbon adsorption material and a related preparation method. Background technique [0002] Carbon emission has always been one of the important issues of concern to the automotive industry. The country has clear standards and time points for automotive carbon emissions. OEMs are in great need of materials and feasible solutions to reduce carbon emissions. [0003] At present, most of the hydrocarbon adsorption products in China are activated carbon adsorption products, which are realized by the physical adsorption of porous activated carbon particles. [0004] The larger the specific surface area of ​​the activated carbon, the stronger the adsorption capacity, and the adsorption effect is mainly provided by the macropores, transition pores and micropores; the size of...

Claims

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Application Information

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Patent Type & Authority Patents(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