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| Type |
Poster Presentation |
| Area |
Industrial Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 19일 (금요일) 11:00~12:30 |
| Code |
IND.P-57 |
| Subject |
Synthesis of polyethylenimine-impregnated titanate nanotubes for CO2 capture: Influence of porosity and nitrogen content on amine-modified adsorbents |
| Authors |
Young-Jung Heo, Soo-Jin Park*
Department of Chemistry, Inha University, Korea
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| Abstract |
Amine-modified adsorbents have been of interest due to their excellent performance for carbon dioxide (CO2) capture. In this work, we have prepared titanate nanotubes (TNTs) with amine modification using polyethylenimine (PEI) for selective CO2 capture under flue gas. TNTs were prepared by the hydrothermal reaction, and PEI-functionalized TNTs (P-TNTs) were prepared by the wet impregnation method. Enhanced CO2 affinity through amine modification on TNTs allows for selective and favorable CO2 adsorption onto adsorbents. To confirm the CO2 capture in the post-combustion step, CO2 adsorption performances were investigated by the gravimetric method under flue gas (15% CO2 in N2, as in fossil fuel power plants). The optimized samples with the highest CO2 uptake (44.5 mg/g) for the CO2/N2 (15:85) gas mixture are attained at 313 K. This study shows that the nitrogen loading content of amine-modified adsorbents and the porosity for gas diffusion are important for practical CO2 capture. |
| E-mail |
heoyj1211@naver.com |
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123rd General Meeting of the KCS