Anti-breaking carbon dioxide adsorbent and preparation method thereof

A carbon dioxide and adsorbent technology, which is applied in the field of crush-resistant carbon dioxide adsorbent and its preparation, can solve the problems of throat replacement, alkaline burn, waste of resources and the like, and achieves the effects of high performance, easy use and low cost of use

Inactive Publication Date: 2018-06-29
但建明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to greatly improve the anti-shattering performance of soda lime, improve the anti-shattering performance of soda lime without changing the chemical composition, adsorption capacity and adsorption rate of the original soda lime, and avoid the damage caused by soda lime crushing. Waste of resources, low use efficiency, easy replacement, choking throat, alkaline burns to the human body, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: An anti-shattering carbon dioxide adsorbent is characterized in that: it comprises the following raw materials in parts by weight: 75 parts of calcium hydroxide, 2 parts of sodium hydroxide, water and a polypropylene fiber with a thickness of 1.5 dtex and a length of 1 mm 0.03 part, specifically including the following method preparation:

[0020] a. Mixing of raw materials: Weigh 0.03 parts of polypropylene fiber, 0.24 parts of calcium hydroxide and 0.17 parts of water and stir in a blender evenly, then add the remaining calcium hydroxide, sodium hydroxide and 31 parts of water into the blender and mix evenly;

[0021] B, preparation of adsorbent: the mixed material obtained in step (a) is prepared into a cylindrical adsorbent with a diameter of 3 mm and a length of 5 mm through a ball forming machine, and dried at about 100 ° C for 1.5 hours to keep the water content at about 10%.

Embodiment 2

[0022] Embodiment 2: An anti-shattering carbon dioxide adsorbent, characterized in that: it contains the following raw materials in parts by weight: 77 parts of calcium hydroxide, 3.5 parts of sodium hydroxide, water and polyvinyl chloride fibers with a thickness of 3dtex and a length of 12mm 0.05 part, specifically including the following method preparation:

[0023] a. Mixing of raw materials: Weigh 0.05 parts of polyvinyl chloride fiber, 0.45 parts of calcium hydroxide and 0.3 parts of water and stir them evenly in a blender, then add the remaining calcium hydroxide, sodium hydroxide and 24 parts of water into the blender and mix them evenly ;

[0024] B, preparation of adsorbent: the mixed material obtained in step (a) is prepared into a cylindrical adsorbent with a diameter of 3.2 mm and a length of 6 mm through a ball forming machine, and dried at about 105 ° C for 2 hours to keep the water content at about 15%.

Embodiment 3

[0025] Embodiment 3: An anti-shattering carbon dioxide adsorbent, characterized in that: it comprises the following raw materials in parts by weight: 78.5 parts of calcium hydroxide, 5 parts of sodium hydroxide, water and 0.12 parts of glass fibers with a thickness of 7 dtex and a length of 3 mm , specifically including the following preparation methods:

[0026] a. Mixing of raw materials: Weigh 0.12 parts of glass fiber, 1.2 parts of calcium hydroxide and 8.4 parts of water and stir evenly in a blender, then add the remaining calcium hydroxide, sodium hydroxide and 42 parts of water into the blender and mix evenly;

[0027] B, preparation of adsorbent: the mixed material obtained in step (a) is prepared into a cylindrical adsorbent with a diameter of 3.5 mm and a length of 4 mm through a ball forming machine, and dried at about 107 ° C for 1 hour to keep the water content at about 13%.

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Abstract

The invention belongs to an anti-breaking carbon dioxide adsorbent, which is prepared from calcium hydroxide, sodium hydroxide, water, and fibers. The fibers are utilized to resist the tensile crack of the material, a small amount of fibers are added into soda lime, mixing is carried out, the mixed material is shaped, consequently, the anti-breaking property of the soda lime is greatly increased,the original chemical components of the soda lime are not changed, and properties, such as porosity and surface area, are not greatly affected. Compared with the prior art, the anti-breaking carbon dioxide adsorbent has the advantages that the problems of resource waste, low using efficiency, difficult replacement, throat choking, alkali burn of the human body and the like caused by soda lime breaking are solved.

Description

technical field [0001] The invention relates to the technical field of preparation of carbon dioxide adsorbent soda lime, in particular to an anti-shatter carbon dioxide adsorbent and a preparation method thereof. Background technique [0002] Soda lime is an indispensable CO 2 One of the absorbers. Although there are various CO 2 Absorbents are available, such as alkali metal oxides and their hydroxides, molecular sieves and membrane separation and purification technologies. However, compared with other adsorbents, the most mature and widely used technology in China is the soda lime method. This method has low toxicity, high adsorption stability, simple equipment, low cost, and easy material acquisition. The technology is relatively simple to implement, and the reaction is thorough and reliable. And other advantages, is currently the most used CO in air purification equipment 2 gas sorbent. [0003] Currently commonly used CO 2 The absorbent soda lime can be in the fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/04B01J20/28B01J20/30B01D53/02
CPCB01D53/02B01D2257/504B01J20/041B01J20/28011B01J20/3007Y02C20/40
Inventor 但建明车蜀涛姜丽娜李洪玲洪成林齐誉乔秀文于峰
Owner 但建明
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