Journal of Korea Society of Waste Management (한국폐기물자원순환학회지)

Korea Society of Waste Management (한국폐기물자원순환학회)
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Effects of Binder Addition and Immersion Treatment on the Qualities of Rape Stalk-based Agropellets

바인더 첨가 및 침지처리가 유채대 펠릿의 품질에 미치는 영향

  • Yang, In (Department of Wood and Paper Science, Chungbuk National University) ;
  • Chang, Hee-Sun (Department of Wood and Paper Science, Chungbuk National University) ;
  • Oh, Sei Chang (Department of Forest Resources Science, Daegu University) ;
  • Ahn, Sye Hee (Department of Forest Resources Science, Daegu University) ;
  • Choi, In-Gyu (Department of Forest Products, Seoul National University) ;
  • Kim, Yong-Hyun (Shin Heung Ind. Co.) ;
  • Han, Gyu-Seong (Department of Wood and Paper Science, Chungbuk National University)
  • 양인 (충북대학교 목재종이과학과) ;
  • 장희선 (충북대학교 목재종이과학과) ;
  • 오세창 (대구대학교 산림자원학과) ;
  • 안세희 (대구대학교 산림자원학과) ;
  • 최인규 (서울대학교 산림과학부 환경재료과학전공) ;
  • 김용현 (신흥기업(주)) ;
  • 한규성 (충북대학교 목재종이과학과)
  • Published : 2013.06.28
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Abstract

The aim of this study was to evaluate various methods for producing high-quality fuel pellets using rape stalk (RS), which is an agricultural waste. RS was used as a raw material for pellets production after three treatments [distilled water (DW), sulfuric acid (AC), sodium hydroxide (AK) solutions]. Then, fabricated pellets with two binder additions [ rapeseed flour (RF), coffee waste (CW)] were examined to evaluate their fuel qualities. Results showed that binder additions (RF, CW) improve the durability and higher heating value for RS-based pellets. The addition of CW greatly decreased ash content for fabricated pellets. Also, all immersion treatments improved all fuel qualities compared to non-immersed treatment. Particularly, DW-immersion had favorable influences on the increases of higher heating value and durability. Two immersion treatments (AC, AK solution) positively influenced the improvements of bulk density and ash content for fabricated pellets. However, they were required to rinse the residue existed on the RS, and consequently the use of DW-immersion might be the most beneficial way to improve the qualities of RS-based pellets. All qualities of the pellets were acceptable for the European agropellet standards (A- or B-grade). Hence, RS can be used as a raw material for the production of agropellets while outdoor exposure of RS or mixing RS with CW or wood sawdust might be help to better agropellets qualities.

Keywords

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