Solid amine carbon dioxide adsorption material, preparation method and application

A technology of amine carbon dioxide and adsorption materials, which is applied in the field of preparation of solid amine carbon dioxide adsorption materials, can solve the problems of poor dispersion and stability of organic amines in adsorbents, and achieve the effects of low price, low energy consumption and uniform dispersion

Inactive Publication Date: 2017-11-07
QINGDAO UNIV OF SCI & TECH
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  • Description
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Problems solved by technology

[0005] The above patents provide many methods for preparing solid amine carbon dioxide adsorption materials, but the organic amines prepared by these methods have poor dispersibility and stability

Method used

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  • Solid amine carbon dioxide adsorption material, preparation method and application
  • Solid amine carbon dioxide adsorption material, preparation method and application
  • Solid amine carbon dioxide adsorption material, preparation method and application

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Embodiment 1

[0029] Weigh 0.1-0.5g TEPA and dissolve it in 30mL of methanol, add 0.5-0.9g D001 and sonicate for 3 hours in an ultrasonic instrument; remove the methanol on a rotary evaporator at 40°C with a vacuum of 5KPa, and dry it in a vacuum at 85°C drying in an oven to obtain a solid amine carbon dioxide adsorption material.

[0030] Using the obtained adsorbent for CO 2 adsorption. Fill the adsorbent in a fixed-bed reactor (a stainless steel tube with a height of 400 mm and an inner diameter of 27 mm), and feed 30 mL / min of high-purity N at 110 °C under normal pressure. 2 Purging for 1h to remove the adsorbed H 2 O and CO 2 . Cool the temperature to the adsorption temperature of 65°C and switch to a certain flow rate of 15% CO 2 / 85%N 2 (volume fraction) mixed gas, start the adsorption experiment. The outlet gas was collected every 2 min and CO was measured by gas chromatograph 2 concentration. When importing and exporting CO 2 When the concentrations are equal, the adsorpt...

Embodiment 2

[0032] Soak D001 in 0.25mol / L copper chloride solution for 12 hours to make Cu 2+Exchange to the resin to obtain D001-Cu; weigh 0.1-0.5g TEPA and dissolve it in 30mL methanol, add 0.5-0.9g D001-Cu and sonicate it in an ultrasonic instrument for 3h; on a rotary evaporator at 40°C, the vacuum degree is 5KPa In the case of removing methanol, drying in a vacuum oven at 85°C, the solid amine carbon dioxide adsorption material was obtained.

[0033] Using the obtained adsorbent for CO 2 adsorption. Fill the adsorbent in a fixed-bed reactor (a stainless steel tube with a height of 400 mm and an inner diameter of 27 mm), and feed 30 mL / min of high-purity N at 110 °C under normal pressure. 2 Purging for 1h to remove the adsorbed H 2 O and CO 2 . Cool the temperature to the adsorption temperature of 65°C and switch to a certain flow rate of 15% CO 2 / 85%N 2 (volume fraction) mixed gas, start the adsorption experiment. The outlet gas was collected every 2 min and CO was measured ...

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Abstract

The invention relates to a solid amine carbon dioxide adsorption material, a preparation method and application. According to the preparation method, liquid organic amine is loaded to ion exchange resin through a collocation method. The preparation method includes the steps that 1, the ion exchange resin is soaked in a copper chloride solution to make copper ions combined to the resin in exchange; 2, TEPA is dissolved in methyl alcohol, the resin combined with the copper ions is soaked in the solution, and ultrasonic treatment is conducted for 3 h; 3, vacuumizing is conducted to remove the methyl alcohol solvent, drying is conducted, and the solid amine adsorbent is obtained. The material is placed in a fixed bed, a CO2 adsorption test is conducted, and adsorption conditions are optimized; when the TEPA loading amount is 40%, the adsorption temperature is 65 DEG C, and the air inflow is 40 mL / min, a maximum CO2 adsorption amount of 4 mmol / g is achieved. Besides, the preparation method is simple, the regeneration energy consumption is low, the organic amine is dispersed uniformly, and the stability of repeated use is high.

Description

Technical field: [0001] The invention relates to a solid amine carbon dioxide adsorption material, a preparation method, application, adsorption performance and adsorption condition optimization, in particular to a preparation method and adsorption performance of a solid amine carbon dioxide adsorption material for capturing carbon dioxide in flue gas of a coal-fired power plant. Background technique: [0002] In recent years, anthropogenic CO in the atmosphere 2 Emissions are growing rapidly, especially CO from fossil fuel combustion 2 Emissions have attracted widespread attention. According to the forecast of the United Nations Intergovernmental Panel on Climate Change (IPCC), by 2050 atmospheric CO 2 The concentration will reach 550ppm. Among fossil energy sources, coal accounts for about 40% of global energy, and more than 70% of my country's electricity is produced by coal-fired power plants. Therefore, the CO in the flue gas of coal-fired power plants 2 The captur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30B01D53/02
CPCB01D53/02B01D2257/504B01D2258/0283B01J20/22Y02C20/40
Inventor 刘新民梅立斌樊芳王家庭
Owner QINGDAO UNIV OF SCI & TECH
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