기포 유동층 내에서 RDF 촤의 연소 특성

강성완; 곽연호; 천경호; 박성훈; 전종기; 박영권; Seong-Wan Kang; Yeon-Ho Kwak; Kyoung-Ho Cheon; Sung Hoon Park; Jong-Ki Jeon; Young-Kwon Park

Applied Chemistry for Engineering, Vol.22, No.4, 429-432, August, 2011

Export Citation

기포 유동층 내에서 RDF 촤의 연소 특성

Characteristics of RDF Char Combustion in a Bubbling Fluidized Bed

강성완, 곽연호¹, 천경호¹, 박성훈 ², 전종기 ³, 박영권 ^†

서울시립대학교 환경공학부
¹코오롱 건설 기술연구센터 환경기술연구소
²순천대학교 환경공학과
³공주대학교 화학공학과

Seong-Wan Kang, Yeon-Ho Kwak¹, Kyoung-Ho Cheon¹, Sung Hoon Park², Jong-Ki Jeon³, and Young-Kwon Park^†

School of Environmental Engineering, University of Seoul, Seoul 130-743, Korea
¹Environmental Research Team, R&D Institute, Kolon E&C, Yongin 449-815, Korea
²Department of Environmental Engineering, Sunchon National University, Jeonnam 540-742, Korea
³Department of Chemical Engineering, Kongju National University, Cheonan 331-717, Korea

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초록

도시 폐기물 연료(RDF) 가스화 공정에서 생성되는 촤를 보조 연료로 사용할 수 있는지 가능성을 알아보기 위하여 연소실험을 수행하였다. RDF 촤의 고위 발열량은 3000∼4000 kcal/kg이었고 염소 함량은 염소기준치함량보다 낮았다. 이는 보조 연료로서의 가능성을 보여주는 것이다. 연소 배가스에서, 최대 NOx와 SO2의 농도는 각각 240 ppm과 223 ppm이었다. 만약 후처리 공정이 적용되면, 이들의 농도를 대기 오염배출기준을 충분히 만족시킬 수 있게 낮게 제어 가능할 것이다. HCl의 농도는 상대적으로 높았으며, 이는 RDF 연소시 HCl 배출에 주의를 기울어야 함을 의미한다. 반응기 내의 온도 분포, O2와 CO2의 농도변화, 고체 잔사물의 양과 연소 손실로 미루어 볼 때, 과잉공기비가 1.3이 사용되었을 때 연소 반응이 가장 안정적이었다.

The feasibility of applications of the char obtained from a gasification process of municipal-waste refuse derived fuel (RDF) as an auxiliary fuel was evaluated by combustion experiments. The higher heating value of the RDF char was 3000∼4000 kcal/kg and its chlorine content was below the standard requirement demonstrating its potential as an auxiliary fuel. In the combustion exhaust gas, the maximum NOx and SO2 concentrations were 240 ppm and 223 ppm, respectively. If an aftertreatment is applied, it is possible to control their concentrations low enough to meet the air pollutant emission standard. The HCl concentration was relatively high indicating that a care should be taken for HCl emission from the combustion of RDF. Based on the temperature distribution within the reactor, the concentration change of O2 and CO2, and the amount and the loss on ignition of solid residue, it was inferred that the combustion reaction was the most reliable when the excess air ratio of 1.3 was used.

Keywords:refuse derived fuel (RDF);char;auxiliary fuel;combustion characteristics

[References]

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Ministry of environment of republic of Korea, Master plan for Waste-to-Energy, 21 (2008)
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Basu P, Combustion and gasification in fluidized beds, CRC press, Taylor & Francis Group, 59 (2006)
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[Referenced By]

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[1] Jacobson MZ, Energy Environ. Sci., 2, 148 (2009)

[2] Ministry of environment of republic of Korea, Master plan for Waste-to-Energy, 21 (2008)

[3] Arnavat MP, Bruno JC, Coronas A, Renew. Sustain. Energy Rev., 14, 2841 (2010)

[4] Basu P, Combustion and gasification in fluidized beds, CRC press, Taylor & Francis Group, 59 (2006)

[5] Kilgroe A, Nikolai U, Kettrup A, Michigan., proceedings of the 15th National waste processing conference, 17, 145 (1992)

[6] Ha SA, J. Korea Org. Resour. Recycle Assoc., 17, 27 (2009)

[7] Cains PW, Eduljee GH, Environ. Sci. Technol., 31, 776 (1997)

[8] Cains PW, Eduljee GH, Chemosphere., 34, 51 (1997)