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Supported ionic liquid material for reversibly and selectively absorbing carbon dioxide and preparation method thereof

An ionic liquid and selective adsorption technology, which is applied in separation methods, chemical instruments and methods, and other chemical processes, can solve the problems of large fluid mass transfer resistance, etc., and achieve the effects of small equipment corrosion, easy desorption, and large ventilation volume

Inactive Publication Date: 2009-07-01
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since most of the traditional inorganic and organic carriers are granular fillers, they will inevitably produce large fluid mass transfer resistance when used for gas adsorption, which will have a certain negative impact on the adsorption efficiency of the adsorbent.

Method used

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  • Supported ionic liquid material for reversibly and selectively absorbing carbon dioxide and preparation method thereof
  • Supported ionic liquid material for reversibly and selectively absorbing carbon dioxide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Directly add 10 g of 1-butyl-3-methylimidazolium tetrafluoroborate and 100 mL of methanol into the adsorption column and mix evenly, then add 50 g of honeycomb ceramic carrier. Shake evenly. Under vacuum conditions, the adsorption column packed with packing was dried at 100°C for 2 hours. get the required CO 2 Adsorbent material M1.

Embodiment 2

[0024] Add 30g of 1-butyl-3-methylimidazolium tetrafluoroborate and 100mL of methanol directly into the adsorption column and mix evenly, then add 50g of honeycomb ceramic carrier. Shake evenly. Under vacuum conditions, the adsorption column packed with packing was dried at 100°C for 2 hours. get the required CO 2 Adsorbent material M2.

Embodiment 3

[0026] Directly add 40 g of 1-butyl-3-methylimidazolium tetrafluoroborate and 100 mL of methanol into the adsorption column and mix evenly, then add 50 g of honeycomb ceramic carrier. Shake evenly. Under vacuum conditions, the adsorption column packed with packing was dried at 100°C for 2 hours. get the required CO 2 Adsorbent material M3.

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Abstract

The invention discloses a reversible selective adsorption carbon dioxide material as supported ionic liquid, and a preparation method thereof. The material is supported ionic liquid on honeycomb ceramics; the mass percentage content of the supported ionic liquid is 5 to 45 percent; and the material is prepared by an impregnation method. The material has broad application prospects in the fields of adsorbing and recovering CO2 in fuel gas, flue gas and industrial exhaust gas, adsorbing CO2 in aerospace, spacecrafts, space capsules, submarines, bomb shelters, high-precision technical closed rooms and other closed systems, and the like.

Description

technical field [0001] The invention relates to a reversible selective adsorption of CO loaded by ionic liquid 2 gas material. Background technique [0002] CO 2 It is the greenhouse gas that has the most serious impact on global warming, and a large amount of CO 2 It will bring a series of serious environmental and social problems. Therefore, while improving energy efficiency and increasing the use of low-carbon energy, the CO in the mixed gas 2 The adsorption, enrichment and transformation of gases have become the focus of attention and research. Currently, commercial CO 2 Chemical absorption methods are usually used in gas absorption devices, for example, organic amine absorption reagents such as monoalkylolamines with strong alkalinity are used. However, in the organic amine solvent absorption method, it is difficult to regenerate the absorbent, the scale of the absorption device is large, the solvent is easy to lose, the equipment is severely corroded, and the env...

Claims

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Application Information

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IPC IPC(8): B01J20/292B01D53/04B01D53/62
Inventor 邓友全张娟张庆华乔波涛刘乐全马昱博
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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