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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2003.1
- 수록면
- 193 - 203 (11page)
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초록· 키워드
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With the increasing environmental consideration and stricter regulations, gasification of waste is considered to be more attractive technology than conventional incineration for energy recovery as well as material recycling. In view of the considerable interest in the gasification process world wide, it is necessary to analyze and predict the gasification performance before the design of gasifier can be undertaken. From this theoretical study, following conclusions were obtained. For the waste gasification process, the cold gas efficiency was affected by some parameters, such as waste composition, gasification temperature, heat loss through the gasifier wall and carbon conversion. As a result, the cold gas efficiency decreased below a gasification temperature of 700℃ due to the increase of unburned carbon and there was no gasification temperature of 800℃. However, considering with formation of pollutant such as Dioxin and slagging temperature of ash in the waste, the reasonable cold gas efficiency was about 80% under a gasification temperature of 1,000℃. In view of the moisture content in the waste, the moisture content affected significantly on the gasification process. The results indicate the pretreatment to decrease moiture if the moisture content in the waste is over 15% while supplementary supply below a moisture content of 10%. It is not surprising to find that injection flow rate of oxygen and steam must be increased with increase of combustible content in the waste. And the maximum cold gas efficiency takes place at a maximum combustible content in the waste. It is because that the syngas produced during gasification increases as the combustible content in the waste increases.
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