| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
환경에너지 |
| 제목 |
Potassium Catalyst Recovery Process and Performance Evaluation of the Recovered Catalyst in the K2CO3-Catalyzed Steam Gasification System |
| 초록 |
After conducting K2CO3-catalyzed steam gasification in a bench-scale fluidized bed reactor, the bench-scale recovery process of potassium catalyst was investigated. The optimal potassium catalyst recovery efficiency (ηK) was 87.62%, achieved by utilizing a combined washing method in which the first wash was performed with N2 limewater (0.25 mole ratio of Ca/K) and the last two washes were with CO2 water. Compared with the results obtained from fresh K2CO3, not only the trends of carbon conversion (XC) were similar at each gasifying temperature, but also there was no obvious difference in volume percentage of gases produced. Both reaction rate constant (kRPM) and activation energy (Ea) remained similar by adopting random pore model. The potassium catalyst was effectively and efficiently recovered from gasified residue and the recovered potassium catalyst had the same catalytic activity as fresh K2CO3. |
| 저자 |
YUAN XIANGZHOU1, Fan ShuMin2, 최승완1, 이기봉1
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| 소속 |
1고려대, 2아주대 |
| 키워드 |
Catalyst recovery; Washing method; Recovered potassium catalyst; Catalytic ability.
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| E-Mail |
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