Cage type carbon dioxide adsorption material as well as preparation method and application thereof

A carbon dioxide and adsorption material technology, applied in chemical instruments and methods, through adsorption, separation methods, etc., can solve the problems that restrict the large-scale industrial application of amine-based functionalized solid adsorption materials, complex preparation processes, and high material costs, and achieve regeneration. Low energy consumption, improved adsorption capacity, and the effect of large specific surface area

Inactive Publication Date: 2013-05-29
SUN YAT SEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the solid composite adsorption material has good adsorption properties, the molecular sieves used as the matrix material for most of these materials currently have complex preparation processes, high material costs, and environmental pollution caused by the preparation process.
These problems restrict the large-scale industrial application of amine functionalized solid adsorption materials.

Method used

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  • Cage type carbon dioxide adsorption material as well as preparation method and application thereof
  • Cage type carbon dioxide adsorption material as well as preparation method and application thereof
  • Cage type carbon dioxide adsorption material as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] (1) Acidification modification of montmorillonite: Add 10g of montmorillonite into 100mL sulfuric acid solution (2mol / L), heat to 90°C in a reaction device with condensing reflux, and then stir for 4 hours; The obtained mixed solution was soaked in deionized water, and then filtered; after repeated washing and filtering 3 times, the residual acid solution was removed; then the filtered filter cake was put into an oven, heated to 100°C, and dried for 12 hours to obtain Acidified modified montmorillonite;

[0034] (2) Preparation of polyvinylamide / montmorillonite cage material: Dissolve 3g of polyvinylamide in 40mL of methanol, stir at 25°C for 2 hours, add 3g of acidified modified montmorillonite, continue stirring for 6 hours, At a temperature of 40° C., the methanol solution was removed by evaporation; finally, the obtained sample was placed in a ventilated drying oven, dried at 60° C. for 6 hours, and a cage-shaped carbon dioxide adsorption material was obtained after...

Embodiment 2

[0036] (1) Acidification modification of montmorillonite: Add 15g of montmorillonite into 100mL sulfuric acid solution (2mol / L), heat to 90°C in a reaction device with condensing reflux, and then stir for 4 hours; The resulting mixed solution was soaked in deionized water and then filtered. After repeated washing and filtering 3 times, the residual acid solution was removed; then the filtered filter cake was put into an oven, heated to 100°C, and dried for 12 hours to obtain acidified modified montmorillonite;

[0037] (2) Preparation of polyvinylamide / montmorillonite cage material: Dissolve 3g of polyvinylamide in 40mL of methanol, stir at 25°C for 2 hours, add 3g of acidified modified montmorillonite, continue stirring for 6 hours, At a temperature of 40° C., the methanol solution was removed by evaporation; finally, the obtained sample was placed in a ventilated drying oven, dried at 60° C. for 6 hours, and a cage-shaped carbon dioxide adsorption material was obtained after...

Embodiment 3

[0039](1) Acidification modification of montmorillonite: Add 20g of montmorillonite into 100mL of sulfuric acid solution (2mol / L), heat to 90°C in a reaction device with condensing reflux, and then stir for 4 hours; The obtained mixed solution was soaked in deionized water, and then filtered; after repeated washing and filtering three times, the residual acid solution was removed. Then put the filtered filter cake into an oven, heat to 100°C, and dry for 12 hours to obtain acidified modified montmorillonite;

[0040] (2) Preparation of polyvinylamide / montmorillonite cage material: Dissolve 3g of polyvinylamide in 40mL of methanol, stir at 25°C for 2 hours, add 3g of acidified modified montmorillonite, continue stirring for 6 hours, At a temperature of 40° C., the methanol solution was removed by evaporation; finally, the obtained sample was placed in a ventilated drying oven, dried at 60° C. for 6 hours, and a cage-shaped carbon dioxide adsorption material was obtained after c...

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Abstract

The invention discloses a cage type carbon dioxide adsorption material as well as a preparation method and an application thereof. The preparation method comprises acidation modification of montmorillonite and synthesis of the cage type carbon dioxide adsorption material. In a preparation process of the cage type adsorption material, an impregnation method is adopted, organic matter is directly covered on the inner surface of a mesoporous molecular sieve, the preparation method is simpler in process and low in energy consumption, desorption and regeneration are easy, and energy consumption and cost in an industrial application process can be greatly reduced. Effective loading capacity of organic amine in the composite material is 10-60%, the composite material has good adsorption and desorption capabilities and good stability, as acidified montmorillonite is adopted as a base material, cost is greatly reduced compared with other molecular sieve porous materials, and the requirement of an industrial process, especially removal of carbon dioxide gas in flue gas, to adsorbent material can be met.

Description

technical field [0001] The invention belongs to the field of carbon dioxide capture and storage, specifically relates to a carbon dioxide adsorption medium, in particular to a preparation method and application of a carbon dioxide cage-shaped adsorption medium with low price, high selectivity and large adsorption capacity. Background technique [0002] In recent years, climate change caused by the "greenhouse effect" has become one of the environmental issues of global concern. The large amount of greenhouse gas emissions produced by human activities is the main cause of climate warming, among which carbon dioxide is one of the main greenhouse gases. Since the industrial revolution, with the development of the economy, the total emissions of the world have also increased rapidly, resulting in more and more significant climate warming effects. Reducing greenhouse gas emissions is of great significance for controlling global temperature growth and preventing extreme climates. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30B01D53/02
CPCY02C10/08Y02C20/40
Inventor 王维龙丁静魏小兰肖静彭强杨建平陆建峰
Owner SUN YAT SEN UNIV
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