Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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The Study for Effect of Biodiesel Antioxidants on Properties and Emissions

바이오디젤 산화안정제가 물성 및 배출가스에 미치는 영향 연구

  • Kang, Hyungkyu (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Song, Hoyoung (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Park, Sooyoul (Research Center for Environmental Research & Resources & Process, Korea Research Institute of Chemical Technology) ;
  • Oh, Sangki (Department of Automotive Engineering, Gyeonggi College of Science and Technology) ;
  • Na, Byungki (Department of Chemical Engineering, Chungbuk National University)
  • 강형규 (한국석유관리원 석유기술연구소) ;
  • 송호영 (한국석유관리원 석유기술연구소) ;
  • 박수열 (한국화학연구원 환경자원공정연구센터) ;
  • 오상기 (경기과학기술대학교 자동차과) ;
  • 나병기 (충북대학교 화학공학과)
  • Received : 2013.07.01
  • Accepted : 2013.10.28
  • Published : 2014.03.01
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Abstract

Biodiesel as alternative fuels has been widely studied due to biodiesel merits such as lower sulfur, lower aromatic hydrocarbon and higher oxygen content. But biodiesels could be easily oxidized by several conditions. In this study, various antioxidants such as propyl gallate, TBHA, TBHQ, DTBHQ, butyl-amin, aniline and pyrogallol were added in the biodiesel produced by the used cooking oil, then the material property test and the vehicle emissions test were conducted in accordance with test method. From the results of material property test, all antioxidants were suitable for the quality standard of density and kinematic viscosity, but Propyl gallate and Pyrogallol, as a type of Gallate additives, showed that the result of TAN increased rapidly according to the increase of the amount of additives. In the oxidation stability test, TBHQ, Butyl-amine and Aniline showed the excellent oxidation stability. Also, when considering the material property test, TBHQ was verified to the most excellent additives. In case of the vehicle emissions test, the testing was conducted by using the biodiesel added by TBHQ and was conducted by using two light duty diesel vehicles suitable for the EURO 4 and EURO 5 emission regulation. The result of testing showed that when the TBHQ was added, the amounts of CO, NOx and NMHC+NOx were decreased but the amount of $CO_2$ was increased.

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References

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