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

A carbon molecular sieve, anti-static technology, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as raw material cost performance differences, and achieve the effects of low production cost, avoidance of explosion problems, and high adsorption capacity

Inactive Publication Date: 2014-04-30
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] Furfural resin is used as raw material, placed in a constant temperature drying oven, and the temperature is respectively selected at 50°C or 60°C or 70°C or 80°C or 90°C or 100°C, followed by drying for 2h or 3h or 4h or 6h or 10h, and the drying The final high molecular polymer is pulverized to particles below 1.5cm with a pulverizer, and the high molecular polymer after pulverization does not reach the required particle size, and 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 additives 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, and the binder It is acrylamide or polyvinyl alcohol or carboxymethyl cellulose or phenolic resin or lignin, and the auxiliary agent is starch or triethanolamine or polyethylene glycol....

Embodiment 2

[0046] (1), raw material processing:

[0047] Use furfural resin as raw material, put it in a constant temperature drying oven at a temperature of 55°C or 65°C or 75°C or 85°C or 95°C or 120°C, dry for 1h or 5h or 9h or 14h or 18h, and dry the high Molecular polymers are crushed with a pulverizer to particles below 1.5cm, and the crushed high molecular polymers cannot reach the required particle size. They are further finely pulverized by ball milling or air milling to obtain particle sizes of 2 microns or 4 microns or 6 micron or 8 micron particles;

[0048] (2), molding:

[0049] Mix the finely pulverized high molecular polymer with binder and 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, and the binder It is acrylamide or polyvinyl alcohol or carboxymethyl cellulose or phenolic resin or lignin, and the auxiliary agent is starch or triethanolamine or polyethylene glycol. It is extruded with a hydraulic press and the molding pressure i...

Embodiment 3

[0058] (1), raw material processing:

[0059] Use urea-formaldehyde resin as a raw material, put it in a constant temperature drying oven at a temperature of 70°C or 80°C or 90°C or 100°C or 110°C or 120°C, and dry it for 2 hours or 4 hours or 6 hours or 8 hours or 10 hours. Molecular polymers are crushed to particles below 1.5cm with a pulverizer, and the crushed polymers do not reach the required particle size. They are further finely pulverized by ball mills or air mills to obtain particle sizes of 2.5 microns or 4.5 microns or 6.5 micron or 8.5 micron particles;

[0060] (2), molding:

[0061] Mix the finely pulverized high molecular polymer with binder and 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, and the binder It is acrylamide or polyvinyl alcohol or carboxymethyl cellulose or phenolic resin or lignin, and the auxiliary agent is starch or triethanolamine or polyethylene glycol. It is extruded with a hydraulic press and the mo...

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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 in particular to a preparation method of a carbon molecular sieve adsorbent, especially a preparation method of a carbon molecular sieve adsorbent with antistatic performance. Background technique [0002] Carbon Molecular Sieves (Carbon Molecular Sieves, CMS) is a new type of adsorbent, because carbon molecular sieves have a special microporous structure and extremely high reactivity and adsorption enrichment and reaction performance in nanometer space, and also have high melting point, acid resistance Due to the nature of alkali corrosion, carbon molecular sieves are widely used in various fields such as nitrogen and hydrogen production in the chemical industry, sewage treatment in environmental protection, and methane recovery from landfill gas. [0003] my country is a big coal producing country, and the low-concentration coalbed methane emitted by ...

Claims

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Application Information

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Patent Type & Authority Patents(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