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Modified solid amine adsorbent for treating CO2-containing industrial waste gas and preparation method thereof

A technology of industrial waste gas and solid amine, applied in the direction of separation methods, chemical instruments and methods, and other chemical processes, can solve problems such as difficult long-term continuous operation, improve recovery rate and cycle life, simple preparation method, reduce The effect of mutual contact

Pending Publication Date: 2022-07-26
合肥中亚环保科技有限公司
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  • Abstract
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Problems solved by technology

[0004] Based on large-scale factory production and cost requirements, solid amine adsorbents need to be recycled. At present, the crushing and wear of adsorbents in the test bench is relatively serious, and it is difficult to run continuously for a long time

Method used

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  • Modified solid amine adsorbent for treating CO2-containing industrial waste gas and preparation method thereof
  • Modified solid amine adsorbent for treating CO2-containing industrial waste gas and preparation method thereof

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preparation example Construction

[0035] The preparation process of embodiment 1-3 is as follows:

[0036] Weigh the components according to the proportions in Table 1, add the sieved porous carrier, purified nanofibers and excess methanol into the reaction flask, continue stirring at a speed of 45 rpm, and after fully dispersed, the mixed solution It was placed in an oven at 80°C to dry for 2 hours, and after drying, a modified porous material with nanofibers wrapped on its surface was obtained.

[0037] The modified porous material was added to the reaction flask, then ethanol and 50wt.% polyethyleneimine were added, the stirring speed was adjusted to 50 rpm, the temperature was raised to 60 °C and the stirring was continued, the organic amine solution could be naturally adsorbed on the In the pores of the material, stir until the organic solvent volatilizes. After the solvent volatilizes, there is no liquid in the reaction flask. Then, the reaction flask is transferred to a vacuum drying oven and heated at ...

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Abstract

The invention discloses a modified solid amine adsorbent for treating CO2-containing industrial waste gas and a preparation method thereof, and the preparation method comprises the following steps: S1, dissolving a porous carrier and nanofibers in an excessive amount of a first organic solvent, and uniformly stirring to obtain a mixed solution; s2, drying the mixed solution in a drying oven at 70-100 DEG C to obtain a modified porous material; and S3, dissolving the modified porous material and polyethyleneimine in an excessive amount of a second organic solvent, continuously stirring at 50-65 DEG C, and carrying out evaporation and vacuum drying to obtain the modified solid amine adsorbent. The crushing abrasion phenomenon of the solid amine adsorbent is reduced, and long-term continuous stable operation is realized.

Description

technical field [0001] The invention relates to the technical field of industrial waste gas treatment, in particular to a method for treating CO-containing waste gas 2 Modified solid amine adsorbent for industrial waste gas and preparation method thereof. Background technique [0002] Carbon capture, utilization and storage is a technology with the potential to reduce greenhouse gas emissions on a large scale. The development of carbon capture, utilization and storage is an important measure to effectively control greenhouse gas emissions in the reality that my country's energy structure is dominated by coal, and it will help to achieve low-carbon, low-carbon, high-carbon resources such as coal and oil. Intensive utilization, promoting the transformation and upgrading of high-emission industries such as electric power, coal chemical industry, and oil and gas, and driving the development of other related industries, are of great significance to my country's medium and long-te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30B01D53/02
CPCB01J20/265B01D53/02B01D2253/25B01D2257/504
Inventor 王梦瑜韩宇
Owner 合肥中亚环保科技有限公司
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