원저(原著) : EFB(Empty Fruit Bunch) 반탄화 시 생성된 Char의 수율 및 특성에 대한 운전변수의 영향
분야
공학 > 환경공학
저자
김양진 ( Yang Jin Kim ) , 채재우 ( Jae Ou Chae ) , 최지호 ( Ji Ho Choi ) , 김나랑 ( Na Rang Kim ) , 구재희 ( Jae Hoi Gu ) , 박영수 ( Yeong Su Park ) , 남상익 ( Sang Ick Nam )
발행기관
한국폐기물자원순환학회(구 한국폐기물학회)
간행물정보
한국폐기물자원순환학회지 2012년, 제29권 제8호, 793~799페이지(총7페이지)
파일형식
08206940.pdf [무료 PDF 뷰어 다운로드]
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    영문초록
    Korea has adopted a federal renewable electricity standard that begins at 2% in 2012 and requires companies to source 10% of their electricity from renewables by 2022. Therefore the interest in the use of biomass as a renewable energy resource is growing. By importing biomass, the Korea, which produces too little biomass of its own, can meet the needs of the renewable energy sectors. In the case of import biomass, it will cost a great deal on the transportation and logistics of biomass materials. Therefore new research and development on the biomass fuel with high energy density is needed to reduce logistics cost on transportation of the biomass fuel. Torrefaction is a thermochemical treatment process of biomass at temperatures ranging between 200 and 300oC. Typically, 70% of the mass is retained as a char product, containing 90% of the initial energy content. Torrefaction experiments on samples of EFB were performed in a fixed bed reactor to determine the effect of operation variables such as reaction temperature (205-310oC), reaction time (20-40 min) and air ratio (0-0.18) on char yield and characteristics. Increase of the torrefaction temperature led to a decrease of the yield of the char. The heating value of char increased with the increase of the reaction temperature, because the carbon content increased and hydrogen and oxygen content decreased. The yield of char decreased with increasing air ratio. This suggested that oxidation of EFB occurred during torrefaction in the presence of oxygen.
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