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Preparation method of solid amino carbon dioxide capture material

An amine-based carbon dioxide and solid-state technology, applied in chemical instruments and methods, separation methods, alkali metal oxides/hydroxides, etc., can solve the problem of adsorption capacity, adsorption kinetics rate to be further improved, and poor cycle stability of adsorbents , Complicated preparation process of adsorbent and other issues, to achieve the effect of strong large-scale preparation feasibility, easy operation, and mild preparation conditions

Inactive Publication Date: 2017-02-08
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

(Sanz, R.; Calleja, G.; Arencibia, A.; Sanz-Pérez, E.S., Chemistry of Materials A 2013, 1(6), 1956.) However, the cycle stability of solid-state amine adsorbents is poor, and the preparation of adsorbents The process is complicated or requires expensive raw materials and template agents, the utilization rate of loaded amine is low, and the carbon dioxide adsorption capacity and adsorption kinetic rate of the adsorbent need to be further improved

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  • Preparation method of solid amino carbon dioxide capture material
  • Preparation method of solid amino carbon dioxide capture material
  • Preparation method of solid amino carbon dioxide capture material

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Example 1. Prepare a glucose solution with a concentration of 1M, transfer it into a reaction kettle lined with polytetrafluoroethylene, and conduct a hydrothermal reaction at 150° C. for 10 hours to prepare carbon spheres. Dissolve carbon spheres, cetyltrimethylammonium bromide, and tetraethyl orthosilicate in a mixed solution of methanol / ethanol (methanol:ethanol volume ratio is 1:1), then add concentrated ammonia water, and stir to react 24h, filter, and roast at 500°C for 6h to prepare silicon oxide hollow spheres, wherein the mass ratio of carbon spheres: hexadecyltrimethylammonium bromide: tetraethylorthosilicate: methanol / ethanol mixed solution: concentrated ammonia water is 10: 1:1:400:10, named S 1 . Add silica hollow spheres into a mixed solution composed of tetraethylenepentamine and ethanol, stir for 2 hours, and dry at 100°C for 24 hours to prepare silica hollow spheres loaded amine-type adsorbent, wherein silica hollow spheres: tetraethylenepentamine: Th...

Embodiment 2

[0028] Example 2. Prepare a glucose solution with a concentration of 2M, transfer it into a reaction kettle with a polytetrafluoroethylene liner, and conduct a hydrothermal reaction at 160° C. for 12 hours to prepare carbon spheres. Dissolve carbon spheres, cetyltrimethylammonium bromide, and tetraethyl orthosilicate in a mixed solution of methanol / ethanol (methanol:ethanol volume ratio is 1:2), then add concentrated ammonia water, and stir to react 12h, filter, and roast at 520°C for 3h to prepare silicon oxide hollow spheres, wherein the mass ratio of carbon spheres: hexadecyltrimethylammonium bromide: tetraethylorthosilicate: methanol / ethanol mixed solution: concentrated ammonia water is 12: 1.2:1:400:12, named S 2 . Add silicon oxide hollow spheres into a mixed solution composed of tetraethylenepentamine and ethanol, stir for 1 hour, and dry at 80°C for 28 hours to prepare silicon oxide hollow spheres loaded amine-type adsorbent, wherein silicon oxide hollow spheres: tetr...

Embodiment 3

[0032] Example 3. Prepare a glucose solution with a concentration of 3M, transfer it into a reaction kettle with a polytetrafluoroethylene liner, and conduct a hydrothermal reaction at 170° C. for 15 hours to prepare carbon spheres. Dissolve carbon spheres, cetyltrimethylammonium bromide, and tetraethyl orthosilicate in a mixed solution of methanol / ethanol (methanol:ethanol volume ratio is 1:1.5), then add concentrated ammonia water, and stir the reaction 16h, filter, and roast at 550°C for 4h to prepare silicon oxide hollow spheres, wherein the mass ratio of carbon spheres: hexadecyltrimethylammonium bromide: tetraethylorthosilicate: methanol / ethanol mixed solution: concentrated ammonia water is 14: 1.4:1:400:14, named S 3 . Add silicon oxide hollow spheres into a mixed solution composed of tetraethylenepentamine and ethanol, stir for 1.4 hours, and dry at 85°C for 32 hours to prepare silicon oxide hollow spheres loaded amine-type adsorbent, wherein silicon oxide hollow sphe...

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Abstract

The invention relates to a preparation method of a solid amino carbon dioxide capture material. The method comprises the following steps: carrying out hydrothermal reaction on a glucose solution to prepare carbon spheres, dissolving the carbon spheres, cetyl trimethylammonium bromide and tetraethyl orthosilicate in a methanol-ethanol mixed solution, adding stronger ammonia water to react, filtering, roasting to prepare silicon oxide hollow spheres, adding the silicon oxide hollow spheres into an organic amine-ethanol mixed solution or a surfactant-organic amine-ethanol mixed solution, and drying to obtain the silicon-oxide-hollow-sphere-carried amine-type adsorbent. The method has the advantages of accessible raw materials, low price, mild preparation conditions, simple steps and high efficiency, and can implement large-scale production.

Description

technical field [0001] The invention belongs to a preparation method of a solid amine-based carbon dioxide capture material Background technique [0002] Since the Industrial Revolution, human activities have been burning fossil fuels, which has led to a continuous increase in the level of carbon dioxide in the atmosphere. As a "greenhouse gas", carbon dioxide contributes more than 70% to the greenhouse effect. The greenhouse effect causes global warming, and the frequent El Niño phenomenon threatens the survival of human beings. Therefore, reducing the content of carbon dioxide in the atmosphere has become the focus of increasing attention. Carbon dioxide capture, storage and utilization technology can directly and effectively reduce carbon dioxide in flue gas. It is predicted that it will contribute more and more to carbon dioxide emission reduction in the next few decades, and has become the focus of current research in various countries. At present, the relatively matu...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/28B01J20/30B01D53/02
CPCB01D53/02B01D2257/504B01J20/264B01J20/28021Y02C20/40
Inventor 肖福魁薛光信赵宁李磊
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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