Method for strengthening carbon dioxide absorption with ionic liquid-containing emulsion liquid membrane in coupling micro-fine calcium carbonate synthesis

A technology of fine calcium carbonate and ionic liquids, applied in separation methods, chemical instruments and methods, and separation of dispersed particles. moving effect

Inactive Publication Date: 2014-02-05
SHENYANG POLYTECHNIC UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0005] Purpose of the invention: The present invention provides a method for enhancing the absorption of carbon dioxide by coupling the synthesis of fine calcium carbonate containing ionic liquid emulsified liquid membrane, and its purpose is to solve the problem that the effect of the previous carbon dioxide treatment method is not ideal

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  • Method for strengthening carbon dioxide absorption with ionic liquid-containing emulsion liquid membrane in coupling micro-fine calcium carbonate synthesis
  • Method for strengthening carbon dioxide absorption with ionic liquid-containing emulsion liquid membrane in coupling micro-fine calcium carbonate synthesis
  • Method for strengthening carbon dioxide absorption with ionic liquid-containing emulsion liquid membrane in coupling micro-fine calcium carbonate synthesis

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Embodiment 1

[0068] A water-in-oil emulsion film containing ionic liquids was prepared by a two-step method. First prepare the water-in-oil emulsion containing the ionic liquid, add the 1-methyl-3 methylimidazolium hexafluorophosphate ionic liquid that the volume fraction is 10% in the kerosene containing the surfactant of 0.1% by mass percentage, adopt high-speed For milk production by shearing, gradually add saturated calcium hydroxide solution at the stirring speed of 18,000 rpm, and stir for 15 minutes to prepare the required water-in-oil emulsion dispersion system containing ionic liquid, oil phase and alkali solution The volume ratio (oil-water ratio) is 2:1. The second step is to prepare the water-in-oil emulsion liquid film, in the deionized water containing 0.15% surfactant, under the condition that the stirring speed is 200 rpm, add the water-in-oil emulsion prepared in the first step dropwise , the ratio of the volume of the added water-in-oil emulsion to the volume of deionize...

Embodiment 2

[0070] A water-in-oil emulsion film containing ionic liquids was prepared by a two-step method. First prepare a water-in-oil emulsion containing an ionic liquid, add 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid with a volume fraction of 5% in kerosene containing 0.1% surfactant, and use high-speed shear For milk production, gradually add saturated calcium hydroxide solution at the stirring speed of 10,000 rpm, and stir for 10 minutes to make the required water-in-oil emulsion dispersion system containing ionic liquid, the volume of the oil phase and the alkali solution The ratio (oil-water ratio) is 2:1. The second step prepares the water-in-oil emulsion liquid film, in the deionized water containing 0.15% mass percentage surfactant, under the condition of stirring speed of 200 rpm, add the oil-in-oil prepared in the first step dropwise Water emulsion, the ratio of the volume of the water-in-oil emulsion to the volume of deionized water (milk-to-water ratio) i...

Embodiment 3

[0072] A water-in-oil emulsion film containing ionic liquids was prepared by a two-step method. First, prepare a water-in-oil emulsion containing ionic liquid, add 1-octyl-3-methylimidazolium hexafluorophosphate ionic liquid with a volume fraction of 10% in kerosene containing 0.1% surfactant, and use high-speed shear For milk production, gradually add saturated calcium hydroxide solution at the stirring speed of 15000 rpm, and stir for 10 minutes to make the required water-in-oil emulsion dispersion system containing ionic liquid, the volume of the oil phase and the alkali solution The ratio (oil-water ratio) is 2:1. The second step prepares the water-in-oil emulsion liquid film, in the deionized water containing 0.15% mass percentage surfactant, under the condition of stirring speed of 200 rpm, add the oil-in-oil prepared in the first step dropwise Water emulsion, the ratio of the volume of the water-in-oil emulsion to the volume of deionized water (milk-to-water ratio) is ...

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Abstract

The invention provides a method for strengthening carbon dioxide absorption with an ionic liquid-containing emulsion liquid membrane in coupling micro-fine calcium carbonate synthesis. A water-in-oil-in-water emulsion liquid membrane dispersion system containing the ionic liquid is prepared; the absorption rate of the carbon dioxide by an absorbent is strengthened by dispersing oil droplets; meanwhile, the mass transfer of the carbon dioxide in the liquid membrane is quickened and promoted by using the ionic liquid with high solubility to the carbon dioxide in the oil membrane, so that the carbon dioxide enters an internal water phase containing calcium hydroxide, further the carbon dioxide and the calcium hydroxide react to produce calcium carbonate; the fine calcium carbonate particles are prepared under the condition that the internal water phase space is used as a soft template under the limitation of the size of the internal water phase droplets. According to the method, the gas-liquid interfacial turbulence is strengthened by using the turbulence of the dispersed droplets in the gas-liquid interface, and the surface renewal is quickened, so that the mass transfer speed is improved.

Description

technical field [0001] The invention relates to a method for enhancing the absorption of carbon dioxide and coupling the synthesis of fine calcium carbonate by using an emulsified liquid membrane system containing ionic liquid. Background technique [0002] In recent years, climate warming caused by carbon dioxide has received more and more attention. This greenhouse effect will seriously affect the living environment and ecological environment of human beings. As people pay more and more attention to the problems of global warming and resource shortage, the capture and resource utilization of carbon dioxide has become the focus of both academic and industrial circles in the 21st century. On the whole, my country's carbon dioxide emissions have ranked first in the world at present, so the reduction and capture of carbon dioxide emissions is also one of the primary environmental problems to be solved in our country. [0003] On the one hand, carbon dioxide is a greenhouse ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/62
CPCY02A50/20
Inventor 刘红晶李冬姚辉田贺潘阳
Owner SHENYANG POLYTECHNIC UNIV
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