Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Biodiesel Production Technology from Sewage Sludge

하수 슬러지로부터 바이오디젤 생산기술

  • Kim, Jae-Kon (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority (K-Petro)) ;
  • Park, Jo-Yong (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority (K-Petro)) ;
  • Jeon, Cheol-Hwan (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority (K-Petro)) ;
  • Yim, Eui-Soon (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority (K-Petro)) ;
  • Jung, Choong-Sub (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority (K-Petro))
  • 김재곤 (한국석유관리원 석유기술연구소) ;
  • 박조용 (한국석유관리원 석유기술연구소) ;
  • 전철환 (한국석유관리원 석유기술연구소) ;
  • 임의순 (한국석유관리원 석유기술연구소) ;
  • 정충섭 (한국석유관리원 석유기술연구소)
  • Received : 2013.12.10
  • Accepted : 2013.12.30
  • Published : 2013.12.30
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Abstract

The potential of biodiesel production technology using lipids extracted from sewage sludge was investigated. Despite the bright prospect of biodiesel production, efforts to commercialize it have been very limited. One of the major obstacles has been the high price associated with refined oil feedstock, which makes up nearly 70-75% of the total production costs. Hence, in order to reduce the cost of biodiesel production, using cheaper feedstock such as waste oil or low-quality oil has been proposed. Especially, sewage sludge, a relatively inexpensive feedstock, is a promising raw material for such a purpose. In this study, it is aimed to review biodiesel production technology from sewage sludge as a lipid feedstock. It is process modifications to combine the oil extraction steps, fuel conversion steps (i.e. in situ transesterification, thermo-chemical process with non-catalytic heterogeneous biodiesel production) and fuel quality from sewage sludge.

하수 슬러지로부터 추출된 유지를 이용하여 바이오디젤 생산에 대해 고찰하였다. 바이오디젤 생산의 밝은 전망에도 불구하고, 이를 상용화하기 위한 노력은 매우 제한되어 있다. 주요 장애물 중 하나는 전체 생산비용의 약 70~75%를 구성하는 정제 유지의 공급 원료와 연관된 높은 가격이다. 따라서 이를 극복하기 위하여 폐유나 낮은 품질 유지 등의 저가 원료를 사용하여 바이오디젤의 생산 비용을 낮추는 기술이 제안되어 왔다. 이런 측면에서 하수 슬러지로부터 추출된 유지는 비교적 저렴하여 유망한 원료로 평가받고 있다. 본 연구에서는 하수 슬러지로부터 추출된 유지를 이용한 바이오디젤의 생산기술을 검토하였다. 하수 슬러지로부터 유지 추출공정 및 에스테르화 전환공정 및 무촉매 열화학 전환공정을 살펴보았다.

Keywords

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