| 학회 |
한국화학공학회 |
| 학술대회 |
2006년 가을 (10/27 ~ 10/28, 고려대학교) |
| 권호 |
12권 2호, p.1976 |
| 발표분야 |
에너지/환경 |
| 제목 |
Adsorption of Carbon Dioxide on Mesoporous Alumina |
| 초록 |
The regenerable solid sorbents is a potential alternative for carbon dioxide adsorbent. In this work, we have successfully synthesized mesoporous alumina in the presence of a cationic surfactant under hydrothermal condition. The prepared carbon dioxide adsorbent contains a wormhole-like mesopore structure and exhibits high surface area of ca. 480 m2/g and pore volume of 0.82 cm3/g. The adsorption capacity of mesoporous alumina on carbon dioxide was measured by using thermal gravimetric analysis (TGA). Mesoporous alumina adsorbent showed substantially improved carbon dioxide adsorption capacity (220 mg/g sorbent) compare to the commercial activated alumina (100 mg/g sorbent). More importantly, the 91% of carbon dioxide adsorption performance on mesoporous alumina was maintained after one adsorption-desorption cycle. This result indicate that on the mesoporous alumina the adsorption-desorption process of carbon dioxide is thermally reversible and the 9% of adsorption capacity decrease is believed to be a consequence of strong chemical interaction between carbon dioxide and the strongly basic active sites within the mesoporous alumina framework. |
| 저자 |
리 웅, 안화승
|
| 소속 |
인하대 |
| 키워드 |
mesoporous alumina; carbon dioxide; adsorption capacity
|
| E-Mail |
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| 원문파일 |
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