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A Feasibility Study of Using Diesel/Biodiesel-Pyrolysis Oil-Butanol Blends in a Diesel Engine

디젤유/바이오디젤유-열분해유-부탄올 혼합유의 디젤 엔진 적용 가능성에 관한 연구

  • Kim, Hoseung (Department of Mechanical Engineering, Graduate School, Gachon University) ;
  • Jang, Youngun (Engine Research Team, Korea Institute of Machinery and Materials) ;
  • Lee, Seokhwan (Engine Research Team, Korea Institute of Machinery and Materials) ;
  • Kim, Taeyoung (Engine Research Team, Korea Institute of Machinery and Materials) ;
  • Kang, Kernyong (Engine Research Team, Korea Institute of Machinery and Materials) ;
  • Yoon, Junkyu (Department of Mechanical Engineering, Graduate School, Gachon University)
  • 김호승 (가천대학교 대학원 기계공학과) ;
  • 장영운 (한국기계연구원 그린동력연구실) ;
  • 이석환 (한국기계연구원 그린동력연구실) ;
  • 김태영 (한국기계연구원 그린동력연구실) ;
  • 강건용 (한국기계연구원 그린동력연구실) ;
  • 윤준규 (가천대학교 대학원 기계공학과)
  • Received : 2014.01.16
  • Accepted : 2014.04.03
  • Published : 2014.07.01

Abstract

Pyrolysis oil (PO), derived from biomass through fast pyrolysis process have the potential to displace significant amounts of petroleum fuels. The PO derived from wood has been regarded as an alternative fuel to be used in diesel engines. However, the use of PO in a diesel engine is very limited due to its poor properties like low energy density, low cetane number, high acidity and high viscosity of PO. Therefore, one of the easiest way to adopt PO to diesel engine without modifications is blended with other fuels that have high centane number. However, PO that has high amount of polar chemicals is immiscible with non polar hydrocarbons of diesel or biodiesel. Thus, to stabilize a homogeneous phase of diesel/biodiesel-PO blends, a proper surfactant should be used. Nevertheless, PO which was produced from different biomass type have varied characteristics and this complicates the selection of a suitable additive for a specific PO-diesel emulsion. In this regard, a more simple approach such as the use of a co-solvent like ethanol or butanol to induce a more stable phase of the PO-diesel mixture could be a promising alternative. In this study, a diesel engine operated with diesel/biodiesel-PO-butanol blends was experimentally investigated. Performance and gaseous & particle emission characteristics of a diesel engine were examined under the engine loads of IMEP 0.2 ~ 0.8MPa.

Keywords

References

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