Metal anchoring organic amine CO2 adsorbent as well as preparation and application thereof

An organic amine and adsorbent technology, applied in the field of preparation of metal-anchored organic amine CO2 adsorbents, can solve problems such as being unfavorable to scaled production, high cost, complicated process, etc., and achieve enhanced stability, avoid volatilization, and high cycle stability. sexual effect

Pending Publication Date: 2021-12-28
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

Compared with the ordinary impregnation method, the process of this method is complicated and costly, which is not conducive to scale-up production

Method used

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  • Metal anchoring organic amine CO2 adsorbent as well as preparation and application thereof
  • Metal anchoring organic amine CO2 adsorbent as well as preparation and application thereof
  • Metal anchoring organic amine CO2 adsorbent as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 0.105g NiCl 2 ·6H 2 O was added to the beaker, then 3.5ml of deionized water was added to the beaker, heated to 40°C and stirred for 0.5h to completely dissolve to obtain solution A;

[0029] Add 0.7g of activated carbon carrier (carrier pore volume is 0.58cm 3 / g, the pore volume with a pore diameter greater than 2nm accounts for more than 95% of the total pore volume), after soaking for 2 hours, drying at 120°C for 6 hours to remove water to obtain a precursor B containing metal anchor sites;

[0030] Weigh 0.3g of tetraethylenepentamine solution in a beaker, then add 3.5ml of ethanol, stir to dissolve it completely, and obtain solution C;

[0031] Take 0.71g of the prepared precursor B containing anchor sites and add it to solution C. After stirring and reacting for 12 hours, remove ethanol with a rotary evaporator, then place it in a vacuum drying oven at 80°C for 6 hours, and cool down after drying to room temperature, the metal-anchored organic amine CO ...

Embodiment 2

[0033] Take by weighing 0.105g nickel chloride hexahydrate and join in the beaker, then add the deionized water of 3.5ml in the beaker, stir and make it dissolve completely, obtain solution A; In solution A, add the gac carrier of 0.75g (carrier pore volume 0.58cm 3 / g, the pore volume with a pore diameter greater than 2nm accounts for more than 95% of the total pore volume), soaked for 2 hours and then dried to obtain a precursor B containing metal anchor sites;

[0034] Weigh 0.3g of tetraethylenepentamine solution in a beaker, then add 3.5ml of ethanol, stir to dissolve it completely, and obtain solution C;

[0035]Take 0.71g of the prepared precursor B containing anchor sites and add it to solution C. After stirring and reacting for 12 hours, remove ethanol with a rotary evaporator, then place it in a vacuum drying oven at 80°C for 6 hours, and cool down after drying to room temperature, the metal-anchored organic amine CO 2 Adsorbent. The adsorbent (CO 2 Adsorption pe...

Embodiment 3

[0037] Take by weighing 0.105g nickel nitrate hexahydrate and join in the beaker, then add the deionized water of 3.5ml in the beaker, stir and make it dissolve completely, obtain solution A; In solution A, add the silica gel carrier of 0.75g (carrier pore volume is 0.82cm 3 / g, the pore volume with a pore diameter greater than 2nm accounts for more than 90% of the total pore volume), soaked for 2 hours and then dried to obtain the precursor B containing metal anchor sites; Weigh 0.3g of tetraethylenepentamine solution in a beaker, and then add 3.5ml of ethanol, stirred to completely dissolve to obtain solution C; take 0.71g of the prepared precursor B containing the anchor site and add it to solution C, stir and react for 12 hours, remove the ethanol with a rotary evaporator, and then place it in a vacuum Vacuum dry in a drying oven at 80°C for 6 hours, and cool to room temperature after drying to obtain the metal-anchored organic amine CO 2 Adsorbent. The adsorbent (CO 2 ...

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Abstract

The invention relates to a metal anchoring organic amine CO2 adsorbent and preparation and application thereof, and a preparation method mainly comprises the following steps: (1) preparation of an anchoring site-containing precursor: adding a metal salt into deionized water, heating and stirring to obtain a solution A; adding a carrier into the solution A, dipping and drying to obtain a precursor B containing a metal anchoring site; and (2) preparation of the metal anchoring organic amine CO2 adsorbent: adding organic amine into an ethanol solution, uniformly stirring to obtain a solution C, then adding the precursor B containing the metal anchoring sites into the solution C, and after the organic amine in the solution C is anchored to the precursor B, performing vacuum drying to obtain the metal anchoring organic amine CO2 adsorbent. According to the metal anchoring organic amine CO2 adsorbent provided by the invention, the stability of the organic amine adsorbent is enhanced by the preparation method, so that the cycling stability of the CO2 adsorbent is improved, and the metal anchoring organic amine CO2 adsorbent is an ultra-stable CO2 adsorbing material with industrial application prospects.

Description

technical field [0001] The invention relates to the fields of carbon dioxide capture, adsorption and purification, in particular to a metal-anchored organic amine CO 2 Preparation method of adsorbent and its application. Background technique [0002] In recent years, global warming and the resulting deterioration of the global climate have attracted increasing attention. CO 2 is the most important anthropogenic greenhouse gas, and NOAA has recorded CO in the atmosphere since 1958 2 The concentration continues to rise and has reached 417ppm so far. CO 2 The increase of the content will cause global warming, which can lead to a series of serious ecological and environmental problems, so the reduction of CO 2 Emissions to curb global warming is the focus of people. [0003] Studies have shown that CO 2 Capture technology can effectively reduce CO 2 emissions, so vigorously develop CO 2 capture technology to reduce CO 2 Emissions are of great significance in slowing do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30B01D53/02
CPCB01J20/22B01J20/28011B01D53/02B01D2257/504Y02C20/40
Inventor 王峰张世超张超锋张晓辰
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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