본 연구에서는 높은 함수율을 가진 음식물류 폐기물을 Bio-dying 공법을 이용하여 처리 후 발생되는 분해산물을 활용하여 고형연료의 가치를 확인하고 고품위화를 위한 고형연료 제조의 조건 도출 및 분석을 통해 특성 확인을 하였다. 왕겨 혼합비율 10%와 볏짚 혼합비율이 5%에서 외형유지와 강도에서 좋은 품질을 나타내었고 혼합 펠렛의 겉보기 밀도는 평균 $605kg/m^3$의 값을 나타내었다. 이때, 압출 성형기에 부하를 주지 않는 혼합 펠렛 제조 함수율 조건은 25%가 최적인 것으로 판단되었다. 열중량 분석을 통한 중량 감소 곡선을 보면 볏짚, 왕겨 및 분해산물 원료의 순서로 가장 먼저 열분해 되었으며 혼합비율 왕겨 5%, 볏짚 10%, 볏짚 5%, 왕겨 10%의 순서대로 천천히 진행되었다. 볏짚 혼합비율 10% 보다 5%가 천천히 열분해가 진행되고 이는 밀도 값과 관련하여 5%의 펠렛 압축력이 높음을 간접적으로 확인되었고 볏짚은 혼합비율 5%가 최적조건인 것으로 판단되었다. 왕겨와 볏짚의 혼합비율을 비교하면 왕겨의 혼합비율이 10%일 때 펠렛 밀도가 가장 높은 것으로 확인되어 본 실험결과에서는 혼합 효율면에서 왕겨의 혼합비율 10%가 최적의 혼합 연료 조건일 것으로 판단된다. 혼합 펠렛의 고위발열량은 평균 3,870 kcal/kg으로 분해산물 원료보다 5% 증가하였고 3,500 kcal/kg 이상의 값을 나타내었다.
본 연구에서는 높은 함수율을 가진 음식물류 폐기물을 Bio-dying 공법을 이용하여 처리 후 발생되는 분해산물을 활용하여 고형연료의 가치를 확인하고 고품위화를 위한 고형연료 제조의 조건 도출 및 분석을 통해 특성 확인을 하였다. 왕겨 혼합비율 10%와 볏짚 혼합비율이 5%에서 외형유지와 강도에서 좋은 품질을 나타내었고 혼합 펠렛의 겉보기 밀도는 평균 $605kg/m^3$의 값을 나타내었다. 이때, 압출 성형기에 부하를 주지 않는 혼합 펠렛 제조 함수율 조건은 25%가 최적인 것으로 판단되었다. 열중량 분석을 통한 중량 감소 곡선을 보면 볏짚, 왕겨 및 분해산물 원료의 순서로 가장 먼저 열분해 되었으며 혼합비율 왕겨 5%, 볏짚 10%, 볏짚 5%, 왕겨 10%의 순서대로 천천히 진행되었다. 볏짚 혼합비율 10% 보다 5%가 천천히 열분해가 진행되고 이는 밀도 값과 관련하여 5%의 펠렛 압축력이 높음을 간접적으로 확인되었고 볏짚은 혼합비율 5%가 최적조건인 것으로 판단되었다. 왕겨와 볏짚의 혼합비율을 비교하면 왕겨의 혼합비율이 10%일 때 펠렛 밀도가 가장 높은 것으로 확인되어 본 실험결과에서는 혼합 효율면에서 왕겨의 혼합비율 10%가 최적의 혼합 연료 조건일 것으로 판단된다. 혼합 펠렛의 고위발열량은 평균 3,870 kcal/kg으로 분해산물 원료보다 5% 증가하였고 3,500 kcal/kg 이상의 값을 나타내었다.
In this study, the value of solid refuse fuel was evaluated by using fermentation products generated after processing food wastes with high moisture content by using bio-dying process, and the characteristics of solid refuse fuel production for high-grade production were obtained and analyzed. The h...
In this study, the value of solid refuse fuel was evaluated by using fermentation products generated after processing food wastes with high moisture content by using bio-dying process, and the characteristics of solid refuse fuel production for high-grade production were obtained and analyzed. The highest quality was obtained at 10% rice husk mixing ratio and 5% rice straw mixing ratio, and average density of mixed pellets was $605kg/m^3$. It was concluded that 25% of moisture content of mixed pellets was optimum. As a result of thermogravimetric analysis, rice straw, rice husks and fermentation product were first pyrolyzed. In the order of rice husk mixing ratio 5%, rice straw mixing ratio 10%, rice straw mixing ratio 5% and rice husk mixing ratio 10% proceeded slowly. It was indirectly confirmed that rice straw was slowly pyrolyzed at mixing ratio of 5% and pellet compacting power was the highest. Rice straw was optimal condition for mixing ratio of 5% As a result of comparison between rice husk and rice straw of this study show that rice husk was optimal condition at mixing ratio of 10%. The average higher heating value of pellets was 3,870 kcal/kg, which was 5% higher than that of fermentation products and was more than 3,500 kcal/kg.
In this study, the value of solid refuse fuel was evaluated by using fermentation products generated after processing food wastes with high moisture content by using bio-dying process, and the characteristics of solid refuse fuel production for high-grade production were obtained and analyzed. The highest quality was obtained at 10% rice husk mixing ratio and 5% rice straw mixing ratio, and average density of mixed pellets was $605kg/m^3$. It was concluded that 25% of moisture content of mixed pellets was optimum. As a result of thermogravimetric analysis, rice straw, rice husks and fermentation product were first pyrolyzed. In the order of rice husk mixing ratio 5%, rice straw mixing ratio 10%, rice straw mixing ratio 5% and rice husk mixing ratio 10% proceeded slowly. It was indirectly confirmed that rice straw was slowly pyrolyzed at mixing ratio of 5% and pellet compacting power was the highest. Rice straw was optimal condition for mixing ratio of 5% As a result of comparison between rice husk and rice straw of this study show that rice husk was optimal condition at mixing ratio of 10%. The average higher heating value of pellets was 3,870 kcal/kg, which was 5% higher than that of fermentation products and was more than 3,500 kcal/kg.
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