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Carbon dioxide gas absorbing and trapping medium and using method thereof

A carbon dioxide and gas absorption technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., to achieve the effect of reducing costs

Inactive Publication Date: 2014-03-19
宁波赛茵特科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through relevant patent search, there is no ionic liquid with related structure in the present invention used for the absorption of carbon dioxide

Method used

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  • Carbon dioxide gas absorbing and trapping medium and using method thereof
  • Carbon dioxide gas absorbing and trapping medium and using method thereof
  • Carbon dioxide gas absorbing and trapping medium and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0025] At 10°C, according to the above experimental procedures, under different carbon dioxide partial pressure conditions, the absorption time was controlled for 60 minutes, and the carbon dioxide absorption experiments were carried out on the ionic liquids respectively. The results are as follows:

[0026]

[0027]

[0028] Note: Absorption refers to the ratio of the mass of sulfur dioxide adsorbed by the ionic liquid to the amount of the ionic liquid, the same below.

Embodiment 7-12

[0030] According to the above experimental process, we investigated the experimental results of ionic liquids at different temperatures under the condition that the partial pressure of sulfur dioxide is 0.1MPa, as shown in the following table:

[0031]

Embodiment 13-18

[0033] According to the above experimental conditions, we investigated the repeated regeneration ability of ionic liquids, and carried out desorption experiments on ionic liquids that had been saturated (partial pressure 0.1MPa) by passing nitrogen gas for 60 minutes. The experimental results are as follows:

[0034]

[0035]

[0036] Note: The residual amount of sulfur dioxide refers to the ratio of the mass of sulfur dioxide adsorbed by the ionic liquid to the amount of the ionic liquid substance.

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Abstract

The invention discloses a carbon dioxide gas absorbing and trapping medium. The carbon dioxide gas absorbing and trapping medium is characterized by being functional ionic liquid which consists of anions and cations at a molar ratio of 1:1, wherein the cations and the anions are shown as chemical formulae. The ionic liquid without obviously saturated vapor pressure can be regenerated for use through absorption saturation and simple heating, so that the problem of secondary pollution caused by the adoption of a conventional absorbent is solved.

Description

technical field [0001] The invention relates to a carbon dioxide gas absorbing and trapping medium and a use method thereof, which absorb carbon dioxide efficiently and selectively to achieve the purpose of purifying gas. Background technique [0002] Global warming and sea level rise have threatened the sustainable development of human beings. The greenhouse gas carbon dioxide is considered to be one of the main culprits of climate warming and sea level rise. The emission reduction of the greenhouse gas carbon dioxide has become an urgent issue faced by the international community. The Chinese government has solemnly promised to reduce carbon dioxide emissions per unit of GDP by about 40% during the 12th Five-Year Plan period. To achieve this goal, it is necessary to develop new carbon dioxide separation and capture technology. [0003] Currently, carbon dioxide removal technologies mainly include solvent absorption, pressure swing adsorption, membrane separation, and cr...

Claims

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Application Information

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IPC IPC(8): B01D53/18
Inventor 和吉
Owner 宁波赛茵特科技服务有限公司
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