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Characteristics of Carbonization Residue from Cow and Chicken Manure

우분과 계분에 대한 탄화물의 에너지 특성

  • Lee, Min-Seok (Department of Environmental Engineering, College of Engineering, Kyonggi University) ;
  • Kim, Jae-Kyung (Department of Environmental Engineering, College of Engineering, Kyonggi University) ;
  • Rhee, Seung-Whee (Department of Environmental Engineering, College of Engineering, Kyonggi University)
  • 이민석 (경기대학교 공과대학 환경에너지공학과) ;
  • 김재경 (경기대학교 공과대학 환경에너지공학과) ;
  • 이승희 (경기대학교 공과대학 환경에너지공학과)
  • Received : 2014.07.17
  • Accepted : 2014.10.08
  • Published : 2014.10.30

Abstract

The basic properties of cow and chicken manure such as proximate analysis and element analysis were estimated and the comparison to energy characteristics of carbonization residue between cow and chicken manure was evaluated. The optimum carbonization condition of cow and chicken manure was decided by total heating value of carbonization residue which was expressed by multiplying low heating value by yield. The optimum carbonization conditions for carbonization time and temperature can be decided by 15 min, and $350^{\circ}C$ for chicken manure, and 20 min, and $300^{\circ}C$ for cow manure. At the optimum carbonization conditions, low heating values for the carbonization residue of cow and chicken manure are evaluated by 4,378kcal/kg, and 3,462kcal/kg, respectively. The residues of cow manure were satisfied with the standard of solid fuel product. However, the residue of chicken should be improved by materials changes to be used as a renewable energy source.

우분과 계분의 삼성분, 원소분석 등으로 기초특성을 파악하고, 탄화공정을 통하여 얻어진 우분과 계분 탄화물의 에너지특성에 대하여 비교, 검토하였다. 우분과 계분의 최적 탄화조건은 탄화물의 저위발열량과 수율을 곱한 총발열량으로 도출하였으며, 우분이 탄화온도 $300^{\circ}C$, 탄화시간 20분으로, 계분이 $350^{\circ}C$, 15분으로 나타났다. 최적 탄화조건에서 우분과 계분 탄화물의 저위발열량은 우분이 4,378 kcal/kg, 계분이 3,462 kcal/kg으로 평가되었다. 최적 탄화조건을 통해 생성된 우분 탄화물은 고형연료제품기준을 만족하는 신재생 에너지원으로 활용이 가능한 것으로 판단되었으나 계분 탄화물은 원료의 개질 등을 통한 발열량 증가가 필요한 것으로 평가되었다.

Keywords

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