Regular structure adsorbent and application thereof

A technology of regular structure and adsorbent, which is applied in the field of regular structure adsorbent and its preparation, can solve the problems of large volume of adsorption tower, low efficiency, complex molding of the overall structure adsorbent, etc., and achieve low preparation cost and simple and convenient preparation process Effect

Active Publication Date: 2017-05-17
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 present invention aims at the technical problems of the current pressure swing adsorption process, such as large volume, low efficiency, high investment, complex and difficult molding of the overall structure adsorbent, etc., and provides a regular structure adsorbent that can be used in the rapid adsorption and separation proces

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Example 1:

[0033] 240g of aramid fiber with a diameter of about 10μm and a length of 1mm, 620g with a specific surface area of ​​600m 2 / g of carbon molecular sieve, 200g of 40% polyurethane emulsion, add to 1.2L of water, stir and mix, then transfer to high-speed disperser for dispersion to form a uniform mixed slurry;

[0034] (2) The mixed slurry is made into paper on a paper machine to form a paper-like material with a thickness of 0.3mm, which is then rolled into a cylindrical monolithic absorbent material, dried at 100°C for 8 hours, and vacuum activated at 130°C for 3 hours to form a whole Structural adsorbent.

[0035] Obtained structured adsorbent, Langmuir method N 2 The specific surface area is 400m 2 / g.

Example Embodiment

[0036] Example 2:

[0037] 200g of aramid fiber with a diameter of about 10μm and a length of 1mm, 700g of specific surface area of ​​1500m 2 / g Cu-BTC metal organic framework, 250g 40% polycarbonate emulsion, 15g hydroxyethyl cellulose, add to 1L of water, stir and mix, then transfer to a high-speed disperser for dispersion to form a uniform mixed slurry;

[0038] (2) The mixed slurry is made into paper on a paper machine to form a paper-like material with a thickness of 0.3mm, which is then rolled into a cylindrical monolithic absorbent material, dried at 80°C for 8 hours, and vacuum activated at 130°C for 6 hours to form a whole Structural adsorbent.

[0039] Obtained structured adsorbent, Langmuir method N 2 The specific surface area is 1000m 2 / g.

Example Embodiment

[0040] Example 3:

[0041] 240g of glass filament with a diameter of about 100μm and a length of 1-2cm, 620g with a specific surface area of ​​630m 2 / g SAPO-34 molecular sieve, 200g of sol with 40% Si / Al atomic ratio of 1, and 10g of polyacrylamide, add to 1L of water, stir and mix, then transfer to high-speed disperser for dispersion to form a uniform mixed slurry ;

[0042] (2) The mixed slurry is made into paper on a paper machine to form a paper-like material with a thickness of 0.3mm, which is then rolled into a columnar monolithic absorbent material, dried at 100°C for 8 hours, and calcined at 500°C to form an overall structure Adsorbent.

[0043] Obtained structured adsorbent, Langmuir method N 2 The specific surface area is 400m 2 / g.

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Abstract

The invention discloses a regular structure adsorbent and a preparation method to greatly improve the diffusion efficiency of the adsorbent. The regular structure adsorbent is prepared from a support, an adsorbent material, a binder and other additives. The fibrous support, the powdery adsorbent material, the binder and other additives are mixed and dispersed in a solvent, a catalyst precursor is prepared firstly and then dried and activated to form the adsorbent. The regular structure adsorbent is applicable to purification separation processes of multiple gases, such as air separation, hydrogen separation, carbon dioxide separation, methane separation and the like, and the synthesis method is simple, good in repeatability and prone to industrialization.

Description

technical field [0001] The invention relates to the design and preparation of novel adsorbents and the technical field of adsorption and separation engineering of mixed gases, in particular to an adsorbent with a regular structure and a preparation method thereof. Background technique [0002] In 1960, Skarstrom proposed the PSA patent, using 5A zeolite molecular sieve as an adsorbent to separate oxygen-enriched air from the air, and it was put into industrial production in the 1960s. With the improvement of molecular sieve performance and quality, and the continuous improvement of pressure swing adsorption process, the product purity and recovery rate are continuously improved, which promotes the realization of pressure swing adsorption industrialization. In the 1980s, breakthroughs were made in the industrial application of pressure swing adsorption technology. As a chemical unit technology, it has been widely used in the separation and purification of mixed gases, mainly ...

Claims

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Application Information

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IPC IPC(8): B01J20/28B01J20/30B01D53/047
CPCY02C20/40
Inventor 王树东孙天军李德伏赵生生
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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