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Method for manufacturing carbon molecular sieve with plant nutshell

A carbon molecular sieve and fruit shell technology is applied in the field of manufacturing carbon molecular sieve, which can solve the problems of serious environmental pollution and high manufacturing cost of carbon molecular sieve process, and achieve the effects of being beneficial to environmental protection, solving the problem of process pollution and easy industrialization.

Inactive Publication Date: 2012-01-25
胡耀明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for producing carbon molecular sieves from plant fruit shells, which can effectively solve the problems of serious environmental pollution and high manufacturing costs in the existing carbon molecular sieve process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Pulverize the collected and screened plant husks into coarse powder materials with a pulverizer, the particle size of the powder materials is in the range of 4 mesh to 80 mesh, and dry the coarse powder materials until the moisture content of the materials is 1.5%. ~3%, the dried coarse powder material is ground into a fine powder material in a ball mill. The binding agent put into the kneader, in parts by mass, the micropowder material / coal tar / water is 49 / 16 / 35, after being kneaded by the kneader, it is formed into a diameter of 1.5mm, a cylindrical material with a height of 5mm. The cylindrical material is put into a stainless steel container and then hoisted into a tilting rotary furnace for a carbonization under the protection of nitrogen: in the converter, the temperature is raised to 420°C at a heating rate of 10°C / min, and the temperature is kept at this temperature for 30 minutes, and then Under the protection of nitrogen, the primary carbonization is heated up...

Embodiment 2

[0031] The collected and screened plant husk crusher is crushed into a coarse powder material, the particle size of the powder material is in the range of 4 mesh to 80 mesh, the coarse powder material is dried until the moisture content of the material is 1 to 2.5%, and the dried Coarse powdered materials are ground into fine powdered materials in a ball mill. The particle size of the fine powder is controlled at 5 μm to 30 μm, and the optimal particle size of the fine powder is not more than 10 μm. Put the fine powdered material and the binder composed of coal tar and water into the kneader , in parts by mass, micropowder material / coal tar / water is 45 / 18 / 37, kneaded by a kneader to form a cylindrical material with a diameter of 1.2mm and a height of 3.0mm, and put the cylindrical material into a stainless steel container Then hang it into the tiltable rotary furnace, and carry out a carbonization under the protection of nitrogen: in the converter, the temperature is raised to ...

Embodiment 3

[0033] The collected and screened plant husk crusher is crushed into a coarse powder material, the particle size of the powder material is in the range of 4 mesh to 80 mesh, the coarse powder material is dried until the moisture content of the material is 1.5 to 4%, and the dried Coarse powder materials are ground into fine powder materials in a ball mill. The particle size of the fine powder is controlled at 5 μm to 30 μm, and the optimal particle size of the fine powder is not more than 10 μm. Kneader, in terms of mass parts, micropowder material / coal tar / water is 52 / 17 / 31, after being kneaded by the kneader, it is formed into a round material with a diameter of 2.8mm and a height of 9.5mm, and carbonization is carried out under the protection of nitrogen : In the converter, heat up to 450°C at a heating rate of 10°C / min, and keep it constant for 40 minutes at this temperature; then reheat the primary carbonized product to 780°C at a heating rate of 8-10°C / min, and keep the t...

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Abstract

The invention discloses a method for manufacturing a carbon molecular sieve with a plant nutshell, which sequentially comprises the following steps: a, crushing the plant nutshell into powdery material; b, drying and grinding the powdery material to obtain micro-powdery material; c, mixing and kneading the micro-powdery material with adhesives in a kneader; d, placing the kneaded material into a bar extruding machine for formation; e, placing the formed material into a converter for carbonization; and f, depositing the carbonized material with carbon to obtain a finished carbon molecular sieve. By adopting the method, the problem of environment pollution caused by the carbon molecular sieve process can be solved effectively, and the environment protection can be facilitated. Meanwhile, the finished carbon molecular sieve is manufactured with the plant nutshell sequentially via crushing, drying, grinding to produce the micro powder, placing of the micro powder along with the adhesives into the kneader, formation, carbonization and surface carbon deposition to obtain the finished carbon molecular sieve. Waste is fully utilized to manufacture high-value products, the manufacturing cost of the carbon molecular sieve is reduced, the process is simple, and industrialization can be realized easily.

Description

technical field [0001] The invention relates to a method for manufacturing carbon molecular sieves by utilizing plant husks. Background technique [0002] The domestic production of molecular sieves (CMS) started in the 1980s. After years of development, it has accumulated rich experience in the production of molecular sieves, and the quality of the products has reached the same level as that of Germany, Japan and other countries. [0003] However, domestic literature on the preparation of carbon molecular sieves from plant husks is relatively rare. As early as November 17, 1992, Dalian University of Technology applied for an invention patent application titled "Using walnut shells to manufacture carbon molecular sieves for air separation and nitrogen enrichment". And in the next few years, this technology was researched successively. However, with the advent of phenolic resin-based carbon molecular sieves, there are fewer and fewer technical reports on the preparation of ca...

Claims

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Application Information

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IPC IPC(8): C01B31/02
Inventor 胡耀明张斌斐姜精哲
Owner 胡耀明
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