신재생에너지 (New & Renewable Energy)

  • 제18권3호
  • /
  • Pages.23-31
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  • 2022
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  • 1738-3935(pISSN)
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  • 2713-9999(eISSN)
한국신·재생에너지학회 (Korean Society for New and Renewable Energy)
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식품부산물인 커피박과 폐식용유를 첨가제로 사용하여 파일럿 규모의 평다이 성형기로 제조한 리기다소나무 및 신갈나무 펠릿의 연료적 특성

Fuel Characteristics of Pitch Pine and Mongolian Oak Pellets Fabricated with Coffee Waste and Used Frying Oil as an Additive Using a Pilot-scale Flat-die Pellet Mills

  • Yang, In (Institute of Green-Bio Science and Technology, Seoul National University) ;
  • Jin, Xuanjun (Graduate School of International Agricultural Technology, Seoul National University) ;
  • Han, Gyu-Seong (Department of Wood and Paper Science, College of Agriculture, Life & Environments Sciences, Chungbuk National University)
  • 투고 : 2022.07.01
  • 심사 : 2022.08.05
  • 발행 : 2022.09.25
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초록

This study evaluated the potential of coffee waste (CW) and used frying oil (UFO) as an additive in the production of pitch pine (PIP) and Mongolian oak (MOK) pellets. Ash contents obtained from CW and UFO were 0.5% and <0.1%, respectively. The calorific values of UFO (31.4 MJ/kg) and CW (26.3 MJ/kg) are higher than PIP (20.6 MJ/kg) and MOK (19.1 MJ/kg). For pellets fabricated using a pilot-scale flat-die pellet mill, regardless of fabricating conditions, moisture content (MC) and bulk density of PIP and MOK pellets satisfied the A1 wood pellet standard for residential and small-scale commercial uses, as designated by the National Institute of Forest Science (NIFOS) of the Republic of Korea. When CW was used as an additive, durability of PIP pellets made with 12%-MC sawdust and MOK pellets increased. The optimal conditions for producing PIP and MOK pellets could be by adding 20 mesh CW as an additive and the using of 12%-MC sawdust. However, durability of PIP pellets and ash content MOK pellets did not satisfy the A1 wood pellet standard of NIFOS. Thus, further research is needed to improve the properties of wood pellets with additives.

키워드

과제정보

본 연구는 2016년 한국연구재단 "산학협력 선도대학 육성사업"의 지원과 2017년도 "충북대학교 연구년제"의 지원을 받아 수행한 연구입니다. 한편 연구 진행에 도움을 준 (주) 신영이앤피와 산림조합 중부목재유통센터의 관계자분들에게 감사드립니다.

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