| 학회 |
한국화학공학회 |
| 학술대회 |
2006년 봄 (04/20 ~ 04/21, 대구 인터불고 호텔) |
| 권호 |
12권 1호, p.746 |
| 발표분야 |
에너지/환경 |
| 제목 |
Clean Energy Production with Municipal Sewage Sludge - Catalytic Gasification of Refined Sewage Sludge in Medium Temperatures - |
| 초록 |
This study purposed that catalytic gasification of agglomerates of sewage sludge with oil-coal mixtures would produce more syngas and reduce concentrations of NH3 and HCN. A catalytic gasifier consisted of two-stage catalyst beds, and catalysts at the 1st and 2nd stages were CaO and NiO, respectively. Gasification of the agglomerates was performed at 850 ℃, and a mixture of N2 and O2 with water vapor was introduced into the gasifier. Conversion of the gasification was over 95 % and tar produced during the gasification was less than 3 % at the 1st-stage catalyst bed. The temperature at the 2nd-stage catalyst bed was around 650 ℃, where it was possible to increase the fraction of H2 through the water-gas shift reaction and convert tar-N and HCN to NH3. Also, NiO at the 2nd stage catalyst bed could improve the ratio of CO to H2 from 3:1 to 1:1.4 in the outlet gas. On the other hand, when Fe2O3 was used as the 2nd-stage catalyst, the production fraction of NH3 to HCN was decreased toward 30:1. It was noting that tar produced during the gasification could be reused for replacing oil in the preparation process of the agglomerates. This work was financially supported by the KOSEF and the KEMCO. |
| 저자 |
이승재, 유인수, 이규철, 정남조, 김희연, 강성규
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| 소속 |
한국에너지기술(연) |
| 키워드 |
Municipal Sewage Sludge; Catalytic Gasification; Medium Temperatures
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| E-Mail |
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| 원문파일 |
초록 보기 |
