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Preparation and modification method of ZrO2 as oxide for adsorbing CO2

A technology of oxides and CO2, applied in chemical instruments and methods, zirconia, separation methods, etc., can solve problems such as high energy consumption, difficult regeneration of amine solution, and high corrosion of equipment

Inactive Publication Date: 2017-07-14
HUNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, CO 2 The most important method of capture is the use of amine solutions for CO 2 Absorption, but this method consumes a lot of energy, and it is difficult to regenerate the amine solution
Moreover, the amine solution is more corrosive to the equipment
In addition, this method discharges contaminated waste liquid into the environment, causing more pollution

Method used

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  • Preparation and modification method of ZrO2 as oxide for adsorbing CO2
  • Preparation and modification method of ZrO2 as oxide for adsorbing CO2
  • Preparation and modification method of ZrO2 as oxide for adsorbing CO2

Examples

Experimental program
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Effect test

preparation example 1

[0027] a. Dissolve 1.5g polyethylene glycol and 0.9g sodium hydroxide in 80ml deionized water, add 3.22g ZrOCl 2 ·8H 2 O, stirred for 6h to obtain a reaction liquid;

[0028] b. The resulting reaction liquid was hydrothermally treated in a PTFE-lined kettle at 110°C for 24 hours, washed with water, and finally dried in a drying oven at 130°C for 24 hours to obtain the oxide ZrO 2 powder.

preparation example 2

[0030] a. Dissolve 1.5g polyethylene glycol and 0.9g sodium hydroxide in 80ml deionized water, add 2.415g ZrOCl 2 ·8H 2 O, stirred for 5h to obtain a reaction liquid;

[0031] b. The resulting reaction liquid was hydrothermally treated in a PTFE-lined kettle at 110°C for 24 hours, washed with water, and finally dried in a drying oven at 130°C for 24 hours to obtain the oxide ZrO 2 powder.

preparation example 3

[0033] a. Dissolve 1.5g polyethylene glycol and 0.9g sodium hydroxide in 80ml deionized water, add 1.61g ZrOCl 2 ·8H 2 O, stirred for 4h to obtain a reaction liquid;

[0034] b. The resulting reaction liquid was hydrothermally treated in a PTFE-lined kettle at 110°C for 24 hours, washed with water, and finally dried in a drying oven at 130°C for 24 hours to obtain the oxide ZrO 2 powder.

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Abstract

The invention provides a preparation method of ZrO2 as an oxide for adsorbing CO2. The preparation method comprises the following steps: dissolving polyethylene glycol and sodium hydroxide into deionized water, adding metal salts, and stirring to obtain reaction liquid; transferring the obtained reaction liquid into a kettle with a polytetrafluoro lining, and carrying out hydro-thermal treatment to obtain muddy liquid; and cooling the muddy liquid to room temperature, washing the cooled muddy liquid with the deionized water, removing impurities, and drying to obtain ZrO2 powder as the oxide. The invention also provides a method of modifying the prepared ZrO2 as the oxide with organic amine. The NH2 / ZrO2 as an organic amine modified material provided by the invention has a good industrial application prospect.

Description

[0001] 【Technical field】 [0002] The present invention relates to CO 2 Adsorption materials, specifically related to a kind of high-efficiency adsorption of CO in a lower temperature and lower pressure environment 2 Oxide ZrO 2 preparation and modification methods. [0003] 【Background technique】 [0004] In recent years, the emission of industrial waste gas has made carbon dioxide (CO 2 ) concentration increases rapidly, leading to the intensification of the greenhouse effect. Therefore CO 2 Capture has become the focus of attention in various countries. Currently, CO 2 The most important method of capture is the use of amine solutions for CO 2 Absorption, but this method consumes a lot of energy, and it is difficult to regenerate the amine solution. Moreover, the amine solution is highly corrosive to the equipment. In addition, this method discharges contaminated waste liquid into the environment, causing more pollution. [0005] In recent years, the use of solid m...

Claims

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Application Information

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IPC IPC(8): B01J20/06B01J20/22C01G25/02B01D53/02
CPCB01D53/02B01D2257/504B01J20/06B01J20/223C01G25/02Y02C20/40Y02P20/151
Inventor 尹双凤杨泛明李文盛陈浪张晓辉常纪良郭静楠曾煌凯
Owner HUNAN UNIV
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