해양환경안전학회지 (Journal of the Korean Society of Marine Environment & Safety)

  • 제26권7호
  • /
  • Pages.864-872
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  • 2020
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  • 1229-3431(pISSN)
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  • 2287-3341(eISSN)
해양환경안전학회 (The Korean Society of Marine Environment and safety)
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저유황-고유황 혼합연료유의 물리화학적 특성연구

A Study on Physico-Chemical Properties on Mixed Fuel Oil of Very Low Sulfur Fuel Oil-High Sulfur Fuel Oil (VLSFO-HSFO)

  • 송인철 (해양경찰연구센터) ;
  • 신수현 (한국기술교육대학교 응용화학공학부) ;
  • 김새미 (한국기술교육대학교 응용화학공학부) ;
  • 이희진 (해양경찰연구센터 화학분석연구팀) ;
  • 서정목 (해양경찰연구센터)
  • Song, In-Chul (Korea Coast Guard Research Center) ;
  • Shin, Su-Hyun (School of Energy, Materials & Chemical Engineering, Korea University of Technology & Education) ;
  • Kim, Sae-Mi (School of Energy, Materials & Chemical Engineering, Korea University of Technology & Education) ;
  • Lee, Hee-Jin (Chemical Analysis Research Team, Korea Coast Guard Research Center) ;
  • Seo, Jeong-Mog (Korea Coast Guard Research Center)
  • 투고 : 2020.10.13
  • 심사 : 2020.12.28
  • 발행 : 2020.12.31
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초록

국제해사기구(IMO)의 황함유량 규제에 따르는 저유황연료유는 생산 공정에 따라 다양한 물리화학적 특성을 가지게 된다. 본 연구는 저유황연료유 및 저유황-고유황 혼합연료유의 물리화학적 특성연구 결과를 해양오염 방제대응의 기초자료로 활용하고자 한다. 연구에 사용된 혼합연료유는 황함유량이 0.46 mass%인 저유황연료유와 0.36 mass%인 저유황연료유에 고유황연료유를 25, 50, 75 mass% 혼합하여 제조하였다. 이 혼합연료유에 대해 동점도, 유동점 및 Saturates, Aromatics, Resins, Asphaltenes(SARA)분포 등 물리화학적 특성에 대해 실험실 연구를 하였다. 동점도가 높고 유동점이 낮은 특징의 고유황연료유가 75 mass% 혼합함에 따라, 혼합연료유의 동점도는 350.2 %까지 증가 하였으며, 유동점이 23℃와 -11℃의 저유황연료유는 각각 -3℃ 및 -6℃까지 유동점이 내려가거나 올라갔다. Asphaltenes 분포가 적은 저유황연료유에 고유황연료유를 혼합함에 따라, Saturates분포는 68.8 %까지 감소하고, Asphaltenes분포는 1,417 %까지 크게 증가하였다.

In accordance with the sulfur regulations of the International Maritime Organization (IMO), very low sulfur fuel oil (VLSFO) shows various production-dependent physico-chemical properties. This study aims to use as basic data for oil spill response according to study of physico-chemical characteristics of VLSFO and mixed fuel oil of VLSFO-HSFO. The mixed fuel oil was prepared by mixing 25, 50, 75 mass% of HSFO with VLSFO containing 0.46 and 0.36 mass% of sulfur. The physico-chemical properties such as the kinematic viscosity, pour point and distribution of Saturates, Aromatics, Resins, and Asphaltenes (SARA) were studied in the laboratory. As mixed of 75 mass% of HSFO with high the kinematic viscosity and low pour point in VLSFO, the kinematic viscosity of the mixed fuel oil increased to 350.2 %, and VLSFO with pour point of 23℃ and -11℃ lowered or raised to -3℃ and -6℃ respectively. As HSFO was mixed in VLSFO with a small Asphaltenes distribution, the Saturates distribution decreased to 68.8% and Asphaltenes distribution increased to 1,417 % dramatically.

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