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Hydrophobic cellular metal organic skeleton for waste gas treatment and preparation method thereof

A technology of honeycomb metal and organic framework, applied in the direction of separation methods, alkali metal compounds, chemical instruments and methods, etc., can solve the problems of reducing the adsorption capacity of honeycomb activated carbon, reducing the specific surface area of ​​honeycomb activated carbon, increasing product cost, etc., to achieve low production cost , Increase lubricity, good water resistance

Inactive Publication Date: 2013-06-26
HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the process of preparing hydrophobic honeycomb activated carbon, it is often necessary to add phenolic resin and organic plasticizer, or to add phenolic resin, silicon carbide, and titanium carbide. On the one hand, these additives are relatively expensive, which increases the cost of the product. The use reduces the specific surface area of ​​honeycomb activated carbon, thereby greatly reducing the adsorption capacity of honeycomb activated carbon

Method used

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  • Hydrophobic cellular metal organic skeleton for waste gas treatment and preparation method thereof

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Effect test

Embodiment 1

[0026] A method for preparing a hydrophobic honeycomb metal-organic framework for industrial waste gas treatment, comprising the following steps:

[0027] (1) Mix MIL-101 (Co), methylcellulose powder, polytetrafluoroethylene emulsion with a solid content of 20%, and water in a kneader at a mass ratio of 100:5:30:10 to make a plastic Mud.

[0028] (2) Put the plastic mud into the barrel of the vacuum extruder, start the vacuum system of the vacuum extruder, make the vacuum of the mud in the barrel reach 0.08MPa, and keep it under this vacuum for 10 minutes. Then extrude under the pressure of 20MPa to make a square honeycomb body as required. The side length and height of the square honeycomb body are 65 and 100 centimeters respectively, and the cell density of the honeycomb body is 8 holes / cm 2 .

[0029] (3) After drying the green honeycomb body at 100°C for 4 hours, dry it at 180°C for 6 hours to obtain a hydrophobic honeycomb metal-organic framework MIL-101(Co)(A-1).

[0...

Embodiment 2

[0032] A method for preparing a hydrophobic honeycomb metal-organic framework for industrial waste gas treatment, comprising the following steps:

[0033] (1) Mix MIL-101(Mn) powder, polyvinyl alcohol powder, polytetrafluoroethylene emulsion with a solid content of 20%, and water in a kneader at a mass ratio of 100:3:40:5 to make a plastic Mud.

[0034] (2) Put the plastic mud into the barrel of the vacuum extruder, start the vacuum system of the vacuum extruder, make the vacuum of the mud in the barrel reach 0.08MPa, and keep it under this vacuum for 10 minutes. Then extrude under the pressure of 20MPa to make a square honeycomb body as required. The side length and height of the square honeycomb body are 100 and 100 centimeters respectively, and the cell density of the honeycomb body is 16 holes / cm 2 .

[0035] (3) The honeycomb green body was dried at 150°C for 3 hours, and at 160°C for 10 hours to obtain a hydrophobic honeycomb MIL-101(Mn) (A-2).

[0036] Performance te...

Embodiment 3

[0038] A method for preparing a hydrophobic honeycomb metal-organic framework for industrial waste gas treatment, comprising the following steps:

[0039] (1) Mix MIL-101(Mn) powder, carboxymethyl cellulose powder, silicone-modified acrylic emulsion with a solid content of 18%, and water in a kneader at a mass ratio of 100:5:40:5, Made into plastic clay.

[0040] (2) Put the plastic mud into the barrel of the vacuum extruder, start the vacuum system of the vacuum extruder, make the vacuum of the mud in the barrel reach 0.085MPa, and keep it under this vacuum for 10 minutes. Then extrude under the pressure of 18MPa to make a cylindrical honeycomb body as required. The diameter and height of the cylindrical honeycomb body are 50cm and 100cm respectively, and the cell density of the honeycomb body is 32 holes / cm 2 .

[0041] (3) Dry the green honeycomb body at 100°C for 4 hours and at 180°C for 8 hours to obtain hydrophobic honeycomb MIL-101(Mn) (A-3).

[0042] Performance tes...

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Abstract

The invention discloses a hydrophobic cellular metal organic skeleton for purification treatment of industrial waste gas and a preparation method of the metal organic skeleton. The method comprises the following processes of: mixing the metal organic skeleton and auxiliary raw materials, extrusion molding the mixture, drying the molded product and the like. The method has the advantages that a surface modifier is added so that the hydrophobic cellular metal organic skeleton can be obtained on the premise of ensuring certain mechanical strength and specific surface area. The hydrophobic cellular metal organic skeleton produced by using the method has the advantages of good heat resistance, good water resistance, excellent adsorption property, and the like, and is especially suitable for the purification treatment of organic waste gas with high humidity.

Description

technical field [0001] The invention relates to a hydrophobic honeycomb-shaped metal-organic framework adsorption material for industrial waste gas purification treatment and a preparation method thereof. Background technique [0002] At present, the adsorption and purification of industrial waste gas mainly uses honeycomb activated carbon as the adsorbent. It has the advantages of large surface area, wear resistance, strong anti-dust pollution ability, and small pressure loss, so it is widely used in gas purification and solvent recovery. [0003] Because industrial organic waste gas contains different degrees of humidity, which greatly affects the adsorption performance of honeycomb activated carbon, it is necessary to do hydrophobic treatment on honeycomb activated carbon. At present, in the process of preparing hydrophobic honeycomb activated carbon, it is often necessary to add phenolic resin and organic plasticizer, or to add phenolic resin, silicon carbide, and titan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30B01D53/02
Inventor 银凤翔陈标华王亮
Owner HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH
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