Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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A Study on Evaluation of Oxidation Degradation of Bidiesel and Biodiesel Blended Fuel Distributing in Domestic

국내 유통 바이오디젤 및 바이오디젤 혼합연료의 산화열화 연구

  • Min, Kyong-Il (Green Technology R&D Center, Korea Institute of Petroleum Management) ;
  • Yim, Eui Soon (Green Technology R&D Center, Korea Institute of Petroleum Management) ;
  • Na, Byung-Ki (Department of Chemical Engineering, Chungbuk National University) ;
  • Jung, Choong-Sub (Green Technology R&D Center, Korea Institute of Petroleum Management)
  • 민경일 (한국석유관리원 석유기술연구소) ;
  • 임의순 (한국석유관리원 석유기술연구소) ;
  • 나병기 (충북대학교 화학공학과) ;
  • 정충섭 (한국석유관리원 석유기술연구소)
  • Received : 2012.10.19
  • Accepted : 2012.12.04
  • Published : 2013.07.01
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Abstract

In this study, we suggested effective countermeasure of biodiesel oxidation problems by investigating the oxidation degradation of biodiesels derived from variable resources and the level of oxidation stability of current distributing biodiesel blended fuels (2%) in Korea, and oxidation stability change according to storage time (for 3 month) and biodiesel blending ratio (2, 5, 7, 10%). By the composition analysis results of biodiesel from various resources which are possible to distribute in Korea, the biodiesel from animal fat has poor oxidation stability and cold performance, while the biodiesel from coconut and palm kernel which are considered as future potential raw material showed good oxidation stability and cold performance. The oxidation stability level of current distributing biodiesel blended fuels in Korea was excellent with showing over 30 hours (average 68 hours) stability, but the oxidation stability of the blended fuel with animal fat biodiesel having poor oxidation property (1.22 hours) was rapidly decreased to below 32 hours by mixing only 2%. Therefore, we have to pay attention to quality control of oxidation property, because the oxidation stability problem can be caused by increasing biodiesel blending ratio and diversifying raw materials those have worse property.

Keywords

References

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