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Carbon dioxide solid absorbent as well as preparation method thereof

A carbon dioxide and absorbent technology, applied in chemical instruments and methods, through absorption, separation methods, etc., can solve the problems of low absorbent recycling rate, fast absorbent deterioration speed, and high regeneration energy consumption, achieving low cost, porosity, etc. Excellent structure and high recycling rate

Active Publication Date: 2014-07-02
SHANGHAI BOILER WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: to provide a carbon dioxide solid absorbent with low regeneration temperature, high regeneration rate, no pollution, good cycle performance, low corrosion to equipment, high absorption capacity, and reduced economic cost and its preparation method , to solve the problems of low recycling rate of absorbent in the prior art, high regeneration energy consumption, serious secondary pollution, serious equipment corrosion, fast deterioration of absorbent, and loss of absorbent due to strong volatility

Method used

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  • Carbon dioxide solid absorbent as well as preparation method thereof
  • Carbon dioxide solid absorbent as well as preparation method thereof
  • Carbon dioxide solid absorbent as well as preparation method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0035] The invention is a carbon dioxide solid absorber, which comprises a composite carrier composed of activated carbon and zirconium dioxide. The surface of the composite carrier is loaded with ionic liquid polymer (polyionic liquid), and the surface of the activated carbon is loaded with zirconium dioxide. The ionic liquid polymer is chlorovinylbutylimidazolium ionic liquid polymer. The composite support is based on the precursor of zirconium oxychloride and H 2 o 2 It is prepared by adding activated carbon during the reaction process of preparing zirconia sol as a hydrolysis agent. The composite carrier prepared by the method has a good pore structure, is more suitable as an absorbent carrier, and the cost of the zirconium oxychloride is relatively low, which is beneficial to reducing the use cost.

[0036] The mass ratio of the ionic liquid polymer (polyionic liquid) to the composite carrier is 1:9-1:1, and the most preferred mass ratio is 1:6-1:1.5. The mass ratio of...

Embodiment 2

[0049] The invention is a carbon dioxide solid absorber, which comprises a composite carrier composed of activated carbon and zirconium dioxide. The surface of the composite carrier is loaded with ionic liquid polymer (polyionic liquid), and the surface of the activated carbon is loaded with zirconium dioxide. The ionic liquid polymer is bromovinylbutylimidazolium ionic liquid polymer. The composite carrier is prepared by adding activated carbon during the reaction process of preparing zirconium dioxide sol with zirconium oxychloride as the precursor and H2O2 as the hydrolysis agent. The composite carrier prepared by the method has a good pore structure, is more suitable as an absorbent carrier, and the cost of the zirconium oxychloride is relatively low, which is beneficial to reducing the use cost.

[0050] Chlorine (bromo) vinyl butyl imidazole polyionic liquid preparation method is as follows:

[0051]

[0052] The preparation steps of the ionic liquid polymer of bromo...

Embodiment 3

[0062] The invention is a carbon dioxide solid absorber, which comprises a composite carrier composed of activated carbon and zirconium dioxide. The surface of the composite carrier is loaded with ionic liquid polymer (polyionic liquid), and the surface of the activated carbon is loaded with zirconium dioxide. The ionic liquid polymer is chlorovinylbutylimidazolium ionic liquid polymer. The composite carrier is prepared by adding activated carbon during the reaction process of preparing zirconium dioxide sol with zirconium oxychloride as the precursor and H2O2 as the hydrolysis agent. The composite carrier prepared by the method has a good pore structure, is more suitable as an absorbent carrier, and the cost of the zirconium oxychloride is relatively low, which is beneficial to reducing the use cost.

[0063] Chlorine (bromo) vinyl butyl imidazole polyionic liquid preparation method is as follows:

[0064]

[0065] The preparation steps of the ionic liquid polymer of chlo...

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Abstract

The invention discloses a carbon dioxide solid absorbent. The carbon dioxide solid absorbent comprises a composite carrier consisting of activated carbon and zirconium dioxide; the surface of the composite carrier is loaded with an ion liquid polymer, and the surface of the activated carbon is loaded with zirconium dioxide. The preparation method of the carbon dioxide solid absorbent comprises the following steps: preparing zirconium dioxide gel by taking zirconium oxychloride as a precursor and taking H2O2 as a hydrolysis promotion agent, adding activated carbon in the reaction process to prepare a composite carrier; dissolving an ionic liquid polymer by absolute ethyl alcohol so as to prepare an ionic liquid polymer solution; immersing the composite carrier into the ion liquid polymer solution, immersing at room temperature, filtering, drying the obtained solid to obtain solid particles, and crushing the particles. The carbon dioxide solid absorbent provided by the invention has the advantages of low regeneration temperature, high regeneration rate, no pollution, good cycle performance, low equipment corrosion, high absorption capacity and economic cost reduction, is used for capturing carbon dioxide in various fields, and is especially used for capturing coal combusted flue gas carbon dioxide.

Description

technical field [0001] The invention relates to a carbon dioxide solid absorbent and a preparation method thereof, belonging to the technical fields of environmental pollution prevention and clean coal combustion. Background technique [0002] The greenhouse effect caused by carbon dioxide emissions has already had a severe climate impact on our planet. At present, most countries in the world, including my country, have signed the "Kyoto Protocol", indicating that the control of carbon dioxide emissions has become a matter of great concern to all countries in the world. At the same time, as a valuable carbon resource, carbon dioxide is widely used in chemical industry, food, medicine and other fields. If it can be effectively developed and utilized, it can continuously provide us with carbon resources. The source of carbon dioxide in our country is very rich, but due to unfavorable measures to recover carbon dioxide, the annual recycled carbon dioxide is less than 1% of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30B01D53/04B01D53/14C01B31/20C01B32/50
CPCY02C10/06Y02C10/08Y02P20/151Y02C20/40
Inventor 张艳伟葛学利李江涛黄彬乘
Owner SHANGHAI BOILER WORKS
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