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Absorption liquid, and preparation method and application thereof

A technology of absorbing liquid and alcohol amine, which is applied in separation methods, chemical instruments and methods, and separation of dispersed particles. It can solve the problems of absorbing liquid being volatile and lossy, so as to avoid the reduction of absorption capacity, reduce loss, and improve absorption. efficiency effect

Inactive Publication Date: 2020-09-01
CHINA HUADIAN ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Therefore, the technical problem to be solved in the present invention is to overcome the CO 2 The absorbing liquid is volatile, leading to defects such as large loss, thereby providing an absorbing liquid and its preparation method and application

Method used

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  • Absorption liquid, and preparation method and application thereof
  • Absorption liquid, and preparation method and application thereof
  • Absorption liquid, and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0033] This embodiment provides an absorption solution, which includes 30 g of monoethanolamine, 65 g of ethylene glycol and 5 g of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol.

[0034] The preparation method of the above-mentioned absorption liquid comprises,

[0035] The absorption liquid is obtained after mixing each raw material evenly.

Embodiment 2

[0037] This embodiment provides an absorption solution, which includes 30 g of diethanolamine, 65 g of ethylene glycol and 5 g of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol.

[0038] The preparation method of the above-mentioned absorption liquid comprises,

[0039] The absorption liquid is obtained after mixing each raw material evenly.

Embodiment 3

[0041] This embodiment provides an absorption solution, which includes 25g monoethanolamine, 25g diethanolamine, 45g ethylene glycol and 5g tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester.

[0042] The preparation method of the above-mentioned absorption liquid comprises,

[0043] The absorption liquid is obtained after mixing each raw material evenly.

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Abstract

The invention belongs to the technical field of gas absorption, and particularly relates to CO2 absorption liquid, and a preparation method and application thereof. The CO2 absorption liquid comprises20-70 wt% of alkylol amine and 22-79 wt% of polyol, a uniform and stable hydrogen bond network can be formed between the polyol in the CO2 absorption liquid and an alkylol amine solution, the CO2 absorption liquid has a binding effect on alkylol amine, the volatility of alkylol amine can be reduced, the loss of a solvent is reduced, and the loss of the absorption liquid is reduced. In addition, the CO2 absorption liquid does not contain water, so that the defect of high energy consumption in the regeneration process of the water-based absorption liquid is effectively overcome.

Description

technical field [0001] The invention belongs to the technical field of gas absorption, and in particular relates to an absorption liquid and its preparation method and application. Background technique [0002] carbon dioxide (CO 2 ) is one of the main components of greenhouse gases that cause global warming, contributing 55% to the greenhouse effect. The carbon dioxide emitted by burning fossil fuels in thermal power plants accounts for 30% of the global emissions from burning the same fuels. Therefore, the coal-fired power plants that emit the most CO2 become the industries with the greatest potential for CO2 capture. [0003] At present, the mature carbon dioxide capture technology suitable for coal-fired power plants is the chemical absorption decarbonization technology, which is comparable to the internationally advanced CO 2 Compared with capture technology, China's carbon capture technology is still in its infancy, but has made rapid progress in recent years. Toda...

Claims

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Application Information

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IPC IPC(8): B01D53/14
CPCB01D53/1493B01D53/1475B01D2252/504Y02A50/20Y02C20/40
Inventor 孙路长苏军划王桦王凯亮吴冲张丽亚文潇贤汪洋王争荣何佳宋春风连少翰张士明杨如洪
Owner CHINA HUADIAN ENG
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