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Preparation method of carbon molecular sieve adsorbent with anti-static performance

A carbon molecular sieve and anti-static technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of raw material cost and performance differences, and achieve low production costs, avoid explosion problems, and low pollution.

Inactive Publication Date: 2012-08-15
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In these invention patents and literature reports, the cost of raw materials and the performance of raw materials are very different, and in domestic and foreign patents and literature reports, there is no research on the antistatic properties of carbon molecular sieves.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Raw material processing:

[0035] Take furfural resin as raw material, place it in a constant temperature drying box, choose 50℃ or 60℃ or 70℃ or 80℃ or 90℃ or 100℃, and then dry for 2h or 3h or 4h or 6h or 10h in sequence, and then dry The latter high molecular polymer is pulverized to particles below 1.5 cm with a pulverizer. The pulverized high molecular polymer does not reach the required particle size. It is further finely pulverized with a ball mill or an air mill to obtain a particle size of 1 micron or 3 micron or 5 micron or 7 micron particles;

[0036] (2) Forming:

[0037] Mix the finely pulverized high molecular polymer with the binder and the auxiliary agent in a mass ratio of 1:1:0.1 or 1.5:1:0.1 or 2:1:0.1 or 2.5:1:0.1. The binder It is acrylamide or polyvinyl alcohol or carboxymethyl cellulose or phenolic resin or lignin, and the auxiliary is starch or triethanolamine or polyethylene glycol. It is extruded by a hydraulic press, and the molding pressure is...

Embodiment 2

[0046] (1) Raw material processing:

[0047] Using furfural resin as raw material, place it in a constant temperature drying box at a temperature of 55℃ or 65℃ or 75℃ or 85℃ or 95℃ or 120℃ for 1h or 5h or 9h or 14h or 18h. The molecular polymer is pulverized to particles below 1.5 cm with a pulverizer. The pulverized polymer does not reach the required particle size. It is further finely pulverized with a ball mill or an air mill to obtain a particle size of 2 microns or 4 microns or 6 micron or 8 micron particles;

[0048] (2) Forming:

[0049] Mix the finely pulverized high molecular polymer with the binder and the auxiliary agent in a mass ratio of 1.2:1:0.1 or 1.7:1:0.1 or 2.5:1:0.1 or 2.9:1:0.1. The binder It is acrylamide or polyvinyl alcohol or carboxymethyl cellulose or phenolic resin or lignin, and the auxiliary is starch or triethanolamine or polyethylene glycol. It is extruded and molded by a hydraulic press, and the molding pressure is 15MPa or 25MPa or 35MPa or 45MPa. ...

Embodiment 3

[0058] (1) Raw material processing:

[0059] Using urea-formaldehyde resin as raw material, place it in a constant temperature drying oven at a temperature of 70℃ or 80℃ or 90℃ or 100℃ or 110℃ or 120℃, and dry for 2h or 4h or 6h or 8h or 10h. The molecular polymer is pulverized to particles below 1.5 cm with a pulverizer. The pulverized polymer does not reach the required particle size. It is further finely pulverized with a ball mill or an air mill to obtain a particle size of 2.5 microns or 4.5 microns or 6.5 micron or 8.5 micron particles;

[0060] (2) Forming:

[0061] Mix the finely pulverized high molecular polymer with the binder and the auxiliary agent in a mass ratio of 1.1:1:0.1 or 1.5:1:0.1 or 2.4:1:0.1 or 2.7:1:0.1. It is acrylamide or polyvinyl alcohol or carboxymethyl cellulose or phenolic resin or lignin, and the auxiliary is starch or triethanolamine or polyethylene glycol. It is extruded and molded by a hydraulic press, and the molding pressure is 19MPa or 26MPa or...

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Abstract

The invention discloses a preparation method of a carbon molecular sieve adsorbent with the anti-static performance. The preparation method comprises the steps of carrying out grinding, fine grinding, molding, carbonizing, activating, carbon depositing and hole adjusting processes and the like on macromolecule furfuryl alcohol resin and urea resin polymer which are used as raw materials. By using the method, a carbon molecular sieve for pressure swing adsorption and separation of CH4 gas from low-concentration gas is prepared. The carbon molecular sieve has the advantages of high CH4 adsorption amount, large selective adsorption coefficient, high intensity, low cost and no pollution, and can effectively prevent the explosion of the low-concentration gas.

Description

Technical field [0001] The invention relates to the technical field of separation and purification of industrial gases, and more specifically to a preparation method of a carbon molecular sieve adsorbent, in particular to a preparation method of a carbon molecular sieve adsorbent with antistatic properties. Background technique [0002] Carbon Molecular Sieves (CMS) is a new type of adsorbent. Because carbon molecular sieve has a special microporous structure and nanometer space, it has extremely high reactivity and adsorption enrichment and reaction performance. It also has high melting point and acid resistance. Because of the nature of alkali corrosion, carbon molecular sieves are widely used in various fields such as nitrogen production in the chemical industry, sewage treatment in environmental protection, and methane recovery from landfill gas. [0003] my country is a large coal producing country, and the amount of low-concentration CBM emitted from coal mining is as much as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30
Inventor 李广学李家鸣姜丰卜佳赵明珠詹华露褚杨
Owner ANHUI UNIV OF SCI & TECH
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