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Ternary deep-eutectic solvent

A technology of deep eutectic solvent and compound, applied in the field of new ternary deep eutectic solvent, can solve the problem that phenolic compounds are easily oxidized and deteriorated, and achieve the effect of cheap synthetic raw materials, broad application prospects, and large absorption capacity

Active Publication Date: 2018-08-28
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, only Li et al. reported the effect of deep eutectic solvents based on phenolic compounds on NH 3 Efficient absorption (Li et al., ChemSusChem 2017, 10, 3368-3377), however, phenolic compounds are easily oxidized and deteriorated

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0019] Weigh 9.67g (0.03mol) of tetrabutylammonium bromide, 4.76g (0.07mol) of imidazole, and 6.21g (0.10mol) of ethylene glycol in a flask, stir and mix evenly at 80°C to obtain the ternary deep eutectic solvent.

Embodiment 2

[0021] Take by weighing 4.18g (0.03mol) of choline chloride, 4.76g (0.07mol) of imidazole, and 8.68g (0.14mol) of ethylene glycol in a flask, and stir and mix evenly at 80° C. to obtain the three compounds of the present invention. Elemental deep eutectic solvent.

Embodiment 3

[0023] Weigh 9.67g (0.03mol) of tetrabutylammonium bromide, 4.83g (0.07mol) of 1,2,4-triazole, and 6.20g (0.10mol) of glycerol in a flask, stir and mix at 80°C Uniformly, the ternary deep eutectic solvent of the present invention is obtained.

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Abstract

The invention relates to a ternary deep-eutectic solvent and application thereof to NH3 trapping. The deep-eutectic solvent is prepared from a component A, a component B and a component C, wherein thecomponent A is an organic salt type compound containing halogen anions; the component B is a nitrogen-containing heterocyclic compound; the component C is a polyol type compound. In the ternary deep-eutectic solvent provided by the invention, the component A is a hydrogen bond acceptor; the component B and the component C are hydrogen bond donors; the component B is weakly acid, provides an active site for the reversible chemical absorption of the NH3, and serves as a main absorbent; the component C contains abundant hydroxyl functional groups, can form stronger hydrogen bonds with the NH3, and serves as an auxiliary absorbent. The ternary deep-eutectic solvent provided by the invention has the characteristics of high NH3 absorption capacity, easiness in regeneration and high stability, and an efficient, green and environment-friendly absorbent is provided for the separation and recovery of the NH3 from industrial tail gas.

Description

technical field [0001] The present invention relates to a novel ternary deep eutectic solvent, and the deep eutectic solvent in NH 3 application in capture. Background technique [0002] NH 3 It is an alkaline gas with a pungent smell, which mainly comes from the tail gas discharged from the synthetic ammonia industry and urea production process. NH 3 It has a serious corrosive effect on production equipment and pipelines, and ammonia-containing wastewater and NH 3 The nitrogen oxides produced after combustion will cause serious pollution to the environment. On the other hand, NH 3 It is also an important chemical raw material that can be used to produce fertilizers. Therefore, for NH in industrial exhaust 3 Capturing and recycling can produce huge environmental and economic benefits. [0003] Currently available NH in industry 3 Capture methods include absorption method, catalytic conversion method and biodegradation method, among which absorption method is the mos...

Claims

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Application Information

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IPC IPC(8): B01D53/14
CPCB01D53/1425B01D53/1493B01D2252/504B01D2257/406B01D2258/02
Inventor 黄宽钟富裕彭海龙张甲寅张建博
Owner NANCHANG UNIV
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