Regular-structure adsorbing material preparation, adsorbing material and application

A technology of adsorption material and regular structure, which is applied in the field of monolithic adsorption materials and its preparation, can solve the problems of complicated molding of the monolithic adsorbent, large volume of the adsorption bed, large amount of adsorbent loading, etc., and achieve fast adsorption and desorption rates , The preparation process is simple and convenient, and the effect of saving power consumption

Inactive Publication Date: 2017-06-09
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve a series of problems such as the large volume of the adsorption bed of the current pressure swing adsorption device, the large amount of adsorbent loading, the high investment, the low production efficiency, and the complicated molding of the overall structure adsorbent, and propose a method that can be used for rapid adsorption and separation. The preparation method of the regular structure adsorbent in the process, the preparation process of the adsorption material involved in the method is simple and reliable, and the efficiency is high, and the prepared regular structure adsorbent can be used in the rapid pressure swing adsorption separation process with a short cycle period, greatly improving the unit The processing capacity of the volumetric device is especially suitable for purification processes such as separation, purification and concentration purification of large gas mixtures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Metal organic framework adsorption material ZIF-8: BET specific surface area 1350m 2 / g, particle size 2-5μm, average pore size 0.9nm.

[0032] Measure 200ml of water as a solvent, weigh 100g of metal-organic framework adsorption material powder, add the powder into the solvent in batches while stirring, and stir for 2 hours to form a mixed slurry. Add 30 g of polyurethane adhesive to the mixed slurry, and stir at high speed for 3 hours to form a uniform slurry for coating. The weight ratio of each component in the slurry is: 30.3% of the adsorption material powder, 60.6% of the solvent, and 9.1% of the adhesive. The silica fiber cloth is selected as the substrate, and the slurry is uniformly coated on the surface of the substrate by mechanical spraying, and the coating thickness is 140 μm. The coated substrate was naturally dried at room temperature for 2 hours, and then rolled into a cylindrical overall regular structure adsorption material.

Embodiment 2

[0034] Metal organic framework adsorption material CuBTC: BET specific surface area 1550m 2 / g, the average particle size is 5 μm, and the average pore size is 0.75 nm.

[0035] Measure 200ml of water and 200mL of ethanol as a solvent, weigh 100g of metal-organic framework adsorption material powder, add the powder to the solvent in batches under stirring, and stir for 1 hour to form a mixed slurry. Add: 70g of silica sol to the mixed slurry, stir at high speed for 1 hour to form a uniform slurry for coating. The weight ratio of each component in the slurry is: 23.8% of the adsorption material powder, 59.5% of the solvent, and 16.7% of the adhesive. The silica fiber cloth is selected as the substrate, and the slurry is evenly coated on the surface of the substrate by brushing, with a coating thickness of 130 μm. The coated substrate was naturally dried at room temperature for 0.5 hours, and then rolled into a cylindrical overall regular structure adsorption material.

Embodiment 3

[0037] Metal-organic framework adsorption material Al-BDC: BET specific surface area 1250m 2 / g, particle size 2-5μm, average pore size 0.75nm.

[0038] Measure 200ml of ethanol as a solvent, weigh 100g of MOF adsorption material powder, add the powder into the solvent in batches under stirring, and stir for 0.5 hours to form a mixed slurry. Add: 50g of epoxy resin adhesive to the mixed slurry, stir at high speed for 2 hours to form a uniform slurry for coating. The weight ratio of each component in the slurry is: 28.6% of the adsorption material powder, 57.1% of the solvent, and 14.3% of the adhesive. Zirconia fiber cloth is selected as the substrate, and the slurry is evenly coated on the surface of the substrate by mechanical spraying, with a coating thickness of 150 μm. The coated substrate was naturally dried at room temperature for 0.5 hours, and then rolled into a cylindrical overall regular structure adsorption material.

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Abstract

The invention relates to a preparation method of a regular-structure adsorbing material applied to gas adsorption and separation. The regular-structure adsorbing material is prepared from a base body, adhesive and a metal-organic framework material. The preparation method comprises the steps of mixing metal-organic framework material powder, solvent, adhesive and the like to form slurry; then forming a coating on the surface of the base body through spray coating, brush coating or dipping; coiling and shaping the base body to prepare the regular-structure adsorbing material. The regular-structure adsorbing material has a simple preparation technology and good repeatability; the adsorbing material has rich porous structures and has quick adsorbing and desorbing efficiency when being applied to a gas adsorbing and separating process; the adsorbing material is especially suitable for a purification process of separation, concentration, purification and the like of large-capacity gas mixture.

Description

technical field [0001] The invention relates to the technical field of design and preparation of regular-structured adsorption materials and the adsorption and separation of mixed gases, in particular to a new type of monolithic adsorption material for adsorption and separation and a preparation method thereof. Background technique [0002] The pressure swing adsorption gas separation technology was developed in the 1960s, and the United States Union Carbide Corporation (UCC) first realized the industrialization of the pressure swing adsorption four-bed process technology. This technology relies on the selective adsorption of specific gases by adsorption materials such as molecular sieves, and realizes adsorption and desorption regeneration with pressure changes. The pressure swing adsorption process of gas has been widely used in many fields due to its low energy consumption, operation at room temperature, high degree of automation, and simple process, and has developed rap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30B01D53/02B01D53/047
Inventor 王树东李德伏孙天军赵生生
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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