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Method for preparing and modifying solid material TSCD-Zr for adsorbing CO2

A solid material, modified technology, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve the problems of low energy consumption, expensive raw materials, poor selective adsorption performance, etc.

Active Publication Date: 2018-10-26
HUNAN CITY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CO 2 Among the adsorbents, materials such as carbon materials, silicon-based molecular sieves, metal-organic frameworks (MOFs) materials, and supramolecular frameworks (SOFs) have faster adsorption rates, lower adsorption-desorption temperatures, and lower energy consumption, but the adsorption capacity is small. , poor selective adsorption
In addition, the raw materials used in the preparation of MOFs materials and SOFs materials are expensive, and the synthesis steps are complicated, so they are greatly restricted.

Method used

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  • Method for preparing and modifying solid material TSCD-Zr for adsorbing CO2

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0020] Dissolve 2.94g of sodium citrate in deionized water, add 3.22g of zirconium oxychloride octahydrate, filter after ultrasonication for 1h, and wash the filter cake with deionized water until the filtrate is neutral, and place the obtained solid in 80 ℃ drying oven for 24 hours, you can get the adsorption of CO 2 The solid material TSCD-Zr.

preparation example 2

[0022] Dissolve 2.94g of sodium citrate in deionized water, add 3.22g of zirconium oxychloride octahydrate, filter after ultrasonication for 2h, and wash the filter cake with deionized water until the filtrate is neutral, and place the obtained solid in 100 ℃ drying oven for 12 hours, you can get the adsorption of CO 2 The solid material TSCD-Zr.

preparation example 3

[0024] Dissolve 2.94g of sodium citrate in deionized water, add 6.44g of zirconium oxychloride octahydrate, filter after ultrasonication for 1h, and wash the filter cake with deionized water until the filtrate is neutral, and place the obtained solid in 80 ℃ drying oven for 24 hours, you can get the adsorption of CO 2 The solid material TSCD-Zr.

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Abstract

The invention provides a method for preparing a solid material TSCD-Zr for adsorbing CO2. The method comprises the following steps: dissolving sodium citrate in deionized water; adding metal salt; carrying out ultrasonic treatment for 1-2 h and then filtering; washing a filter cake by using deionized water until filtrate is neutral; and drying the obtained solid in a drying box at the temperatureof 80-100 DEG C and drying for 12-24 h to obtain the solid material TSCD-Zr for adsorbing CO2. The invention further provides a method for modifying the prepared solid material TSCD-Zr by using organic amine. The provided organic amine modified solid material TSCD-Zr-NH2 has high adsorption amount in a low-concentration CO2 environment.

Description

【Technical field】 [0001] The present invention relates to a low temperature, low CO 2 Concentrated environment with high efficiency CO 2 Preparation and modification method of solid material TSCD-Zr with adsorption properties. 【Background technique】 [0002] In recent years, the process of global industrialization has accelerated, CO 2 Emissions have increased dramatically, leading to an intensification of the greenhouse effect. Therefore CO 2 Capture has become the focus of attention in various countries. CO 2 In capture technology, CO 2 Adsorption is favored because of its advantages such as large adsorption capacity, low corrosion, and good cycle adsorption performance. [0003] Sorbent preparation is CO 2 The core of adsorption technology. CO 2 Among the adsorbents, materials such as carbon materials, silicon-based molecular sieves, metal-organic frameworks (MOFs) materials, and supramolecular frameworks (SOFs) have faster adsorption rates, lower adsorption-des...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/30B01J20/22B01D53/02
CPCB01D53/02B01D2253/20B01D2257/504B01J20/22B01J20/223B01J2220/46Y02C20/40
Inventor 杨泛明王超林龙长华韩凌峰符健斌阳开艺
Owner HUNAN CITY UNIV