Adsorbing-catalyzing agent based on amino-functionalized ionic liquid and preparation method thereof

An amino-functionalized, ionic liquid technology, applied in physical/chemical process catalysts, separation methods, chemical instruments and methods, etc., can solve the problems of high viscosity, high cost, restricted application of ionic liquids, etc. The effect of high rate and lower technology cost

Active Publication Date: 2015-12-23
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ionic liquids have disadvantages such as high viscosity and high cost, which seriously restrict their application.

Method used

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  • Adsorbing-catalyzing agent based on amino-functionalized ionic liquid and preparation method thereof
  • Adsorbing-catalyzing agent based on amino-functionalized ionic liquid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh 0.274g (1mmol) N -[3-(triethoxysilyl)propyl]-4,5-dihydroimidazole, 0.156g (1.2mmol) 3-chloropropylamine hydrochloride, added to 5mL of anhydrous acetonitrile, nitrogen protection, stirring Heating to 80°C under reflux for 24 hours. After the reaction, the solvent acetonitrile was removed by rotary evaporation, the obtained product was washed with absolute ethanol, and vacuum-dried at room temperature to obtain 0.4 g of amino functionalized ionic liquid.

[0022] Weigh 1 g of pure silicon mesoporous molecular sieve SBA-16, and disperse it together with the amino-functionalized ionic liquid prepared above in 50 mL of anhydrous acetonitrile, under nitrogen protection, and heat to reflux at 80°C for 24 hours under stirring. After the reaction was completed, the solid product was obtained by filtration, washed with absolute ethanol, dried, added to a Soxhlet extractor, extracted with dichloromethane for 48 hours, dried in vacuum, uniformly dispersed in 30 mL of absolu...

Embodiment 2

[0024] Weigh 0.822g (3mmol) N -[3-(triethoxysilyl)propyl]-4,5-dihydroimidazole, 0.546g (4.2mmol) 3-chloropropylamine hydrochloride, added to 15mL of anhydrous acetonitrile, nitrogen protection, stirring Heating to 80°C under reflux for 36 hours. After the reaction was completed, the solvent acetonitrile was removed by rotary evaporation, the obtained product was washed with absolute ethanol, and vacuum-dried at room temperature to obtain 1.2 g of amino functionalized ionic liquid.

[0025] Weigh 1 g of pure silicon mesoporous molecular sieve SBA-16, and disperse it together with the amino-functionalized ionic liquid prepared above in 50 mL of anhydrous acetonitrile, under nitrogen protection, and heat to reflux at 80°C for 48 hours under stirring. After the reaction was completed, the solid product was obtained by filtration, washed with absolute ethanol, dried, added to a Soxhlet extractor, extracted with dichloromethane for 48 hours, dried in vacuum, uniformly dispersed in ...

Embodiment 3

[0027] Weigh 1.370g (5mmol) N -[3-(triethoxysilyl)propyl]-4,5-dihydroimidazole, 1.040g (8.0mmol) 3-chloropropylamine hydrochloride, added to 25mL of anhydrous acetonitrile, nitrogen protection, stirring Heated to 80°C under reflux for 48 hours. After the reaction was completed, the solvent acetonitrile was removed by rotary evaporation, the obtained product was washed with absolute ethanol, and vacuum-dried at room temperature to obtain 2.0 g of amino functionalized ionic liquid.

[0028] Weigh 1 g of pure silicon mesoporous molecular sieve SBA-16, and disperse it together with the amino-functionalized ionic liquid prepared above in 50 mL of anhydrous acetonitrile, under nitrogen protection, and heat to 80° C. for reflux reaction for 60 hours while stirring. After the reaction was completed, the solid product was obtained by filtration, washed with absolute ethanol, dried, added to a Soxhlet extractor, extracted with dichloromethane for 48 hours, dried in vacuum, uniformly di...

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Abstract

The invention discloses an adsorbing-catalyzing agent based on amino-functionalized ionic liquid. The adsorbing-catalyzing agent is prepared by taking a mesoporous moecular sieve SBA-16 as a carrier and amino-functionalized ionic liquid 1-(3-aminopropyl)-3-[3-(triethoxysilyl)propyl]-4,5-dihydroimidazole chloride as an active component and grafting the amino-functionalized ionic liquid to the carrier, wherein 1-10 mmol of the amino-functionalized ionic liquid is loaded in every 1 g of the adsorbing-catalyzing agent. The adsorbing-catalyzing agent integrates an adsorption capturing function and a catalytic conversion function into a whole and can achieve synchronous adsorption and conversion of CO2 and reduce the cost of a CUU technique.

Description

technical field [0001] The present invention relates to a CO 2 Adsorption-catalyst, especially involving a high-efficiency CO capture and catalytic function based on ionic liquid active components 2 An adsorption-catalyst, and a preparation method of the adsorption-catalyst. Background technique [0002] Global warming has become an environmental issue of great concern, with CO 2 The large amount of greenhouse gas emissions is the main reason for the aggravation of the greenhouse effect. From a resource point of view, CO 2 C again 1 The cheapest and most abundant carbon resource in the family, no matter from the perspective of resource utilization or environmental protection, the relevant CO 2 Both immobilization and chemical transformation research and development are of great significance. Therefore, CO 2 Capture and utilization (CCU) technology has become a hot technology that needs to be developed urgently. [0003] CO 2 It is very inert and difficult to be acti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30B01D53/86B01D53/62B01J31/02C07D317/36
CPCY02C20/40Y02P20/151
Inventor 史利娟成晶晶陈复煜卢建军李庆朝
Owner TAIYUAN UNIV OF TECH
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