| 학회 |
한국화학공학회 |
| 학술대회 |
2010년 봄 (04/22 ~ 04/23, 대구 EXCO) |
| 권호 |
16권 1호, p.866 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
A Kinetic Evaluation of Catalytic Gasificationof Lignite with Carbon Dioxideby Thermogravimetric Analysis |
| 초록 |
The catalytic activity of K2CO3, Na2CO3, K2SO4 and FeSO4 in the gasification of lignite with CO2 was studied by thermogravimetric analysis. The catalysts were added to the lignite sample by physical mixing at 5-15% wt loading. Gasification experiments were carried out at temperatures ranging from 600C to 900C using N2-CO2 reactant gas mixture at ambient pressure. The conversion vs. time data was analyzed witha gas-solids reaction modelto evaluate kinetic parameters. At all temperatures and catalyst loadings, K2CO3 showed greatest effect in the enhancement of gasification rate, which was found to range from 5-18 times that of the uncatalyzed reaction while FeSO4 showed relatively no effect in the enhancement of gasification. At 800°C, complete carbon conversion could be obtained within 10 min with the catalysts according to the following activity K2CO3 ＞ Na2CO3 ＞ K2SO4. The activation energy for the gasification with individual catalystare well within the range in the literatures. |
| 저자 |
Vergel Bungay1, 송병호1, 손정민2, 김상돈3, 심현민4, 김용전4, 김규태4, 박삼룡4
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| 소속 |
1군산대, 2전북대, 3KAIST 화공생명공학과, 4SK 에너지 |
| 키워드 |
coal; gasification; catalyst; thermogravimetric
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| E-Mail |
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| VOD |
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| 원문파일 |
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