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논문 기본 정보

자료유형
학술저널
저자정보
김동희 (포항공과대학교) 안형준 (한국생산기술연구원) 허강열 (포항공과대학교) 이영재 (한국생산기술연구원)
저널정보
한국연소학회 한국연소학회지 한국연소학회지 제24권 제2호
발행연도
2019.6
수록면
41 - 50 (10page)
DOI
10.15231/jksc.2019.24.2.041

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초록· 키워드

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In this study, the co-combustion characteristics of coal and sewage sludge were investigated using 100 kW<SUB>th</SUB> bubbling fluidized bed (BFB) combustion system. Sub-bituminous coal (Coal), dried sewage sludge solid fuel (DSS), and hydrothermal carbonization sewage sludge solid fuel (HTCSS) were considered as fuel blends. The higher heating value of HTCSS was about 1,500 kcal/kg higher than that of DSS since the fuel ratio, H/C and O/C ratio were improved by the hydrothermal carbonization. The hardgrove grindability index (HGI) was performed to understand the feasibility of industrial applications. In the pilot-scale BFB experiment, the heat input, as 72 kW<SUB>th</SUB>, was fixed in all cases. The mixing ratios of HTCSS and DSS were 2, 5 and 10% respectively based on the higher heating value. Under the co-combustion conditions, the temperature in the reactor was increased in the freeboard zone due to the higher volatile matter of HTCSS and DSS than Coal. The trend of CO and NO<SUB>x</SUB> emissions was similar in all cases as mixing ratio was increased. However, SO₂ emission was decreased in HTCSS co-combustion case due to the lower sulfur content compared to than that of DSS. Ash acquired after BFB combustion was analyzed by XRF to evaluate the slagging/fouling tendency. The variation of slagging/fouling tendency was minor in all cases.

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ABSTRACT
1. 서론
2. 연료 특성 분석
3. 파일롯 규모 기포유동층 연소 특성
4. 결론
References

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UCI(KEPA) : I410-ECN-0101-2019-431-000884659