Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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A Review on Fuel Properties and Liquid Biofuels Production Technologies from Sewage Sludge

하수슬러지 유래 액상 바이오연료화 기술 및 연료 특성

  • Park, JoYong (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Kim, Jea-Kon (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Im, Hyeun-Soo (Korea Electric Power Research Institute, KEPCO)
  • 박조용 (한국석유관리원 석유기술연구소) ;
  • 김재곤 (한국석유관리원 석유기술연구소) ;
  • 임현수 (한전 전력연구원)
  • Received : 2018.04.06
  • Accepted : 2018.06.28
  • Published : 2018.06.30
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Abstract

The utilization of sewage sludge for liquid biofuel production is considered as a approach for achieving better energy security, sustainable productivity and economical raw material. Thermochemical technologies of sewage sludge into energy and fuel has been considered as one of the most effective process. Generally, sewage sludge contains more than 80% of moisture, has high metal contents and 14 ~ 20 MJ/kg of calorific value. This paper reviews the technologies of converting sewage sludge to liquid biofuel via three main thermochemical conversion processes namely pyrolysis, transesterification and supercritical. The fuel properties of liquid fuels produced by different technologies from sewage sludge and definition in relevant laws for liquid biofuels in Korea are also discussed.

액상 바이오연료를 생산할 수 있는 하수슬러지는 자국의 에너지 안보와 지속가능한 생산이 가능하고 경제적인 원료로 여겨지고 있다. 열화학적 기술은 하수슬러지를 에너지화, 연료화할 수 있는 가장 효과적인 방법이다. 일반적으로 하수슬러지는 수분 함량이 80% 이상으로 높은 금속 함량과 14 ~ 20 MJ/kg의 발열량을 갖고 있다. 본 논문에서는 하수슬러지를 활용한 액상 바이오연료를 생산하는 열분해 반응, 전이에스테르화 반응, 초임계 반응 기술에 대해 살펴보고자 한다. 또한, 하수슬러지 유래 액상 바이오연료의 연료적 특성과 액상 바이오연료와 관련한 국내 법에 대해 검토하였다.

Keywords

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