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

The Korean Society of Marine Environment and safety (해양환경안전학회)
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Evaporation Characteristics of Oil and Abundance Ratio of Hydrocarbon Compounds at Different Temperatures

온도 변수에 대한 유류의 휘발특성 및 탄화수소 화합물의 존재비에 관한 연구

  • Choi, Jung-Sik (Division of Coast guard, Mokpo National Maritime University)
  • 최정식 (목포해양대학교 해양경찰학부)
  • Received : 2021.11.29
  • Accepted : 2021.12.28
  • Published : 2021.12.31
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Abstract

Oil spilled in seawater undergoes physical and chemical changes as well as biological degradation through various weathering processes, such as evaporation, diffusion, dispersion, emulsification, dissolution, oxidation, and sedimentation. Evaporation is one of the most immediate and prompt weathering processes, and it has the greatest influence on majority of pollutants. In this study, the evaporation characteristics of different oil samples were studied; the volatilization characteristics of gasoline, kerosene, and diesel were compared at average seawater (25 ℃) and near-equator (35 ℃) temperatures. The oil samples were pre-treated and then collected at regular intervals. Gas chromatography-mass spectrometry analysis was performed, and the changes in the amount of the hydrocarbons were calculated.

해수에 유출된 유류는 대기와 해수와의 접촉을 통해 다양한 풍화 과정(증발, 확산, 분산, 유화, 용해, 산화, 침전 및 생물분해 등)을 통해 물리·화학적 변화와 함께 생물학적 분해과정을 겪는다. 본 연구에서는 여러 가지 풍화작용 중 가장 즉각적이고 빠르며 오염물질의 질량에 가장 큰 영향을 미치는 인자라고 알려진 증발(evaporation)에 대한 영향을 확인해보고자 하였다. 휘발유, 등유, 경유를 대상으로 25 ℃(해수 연평균 온도)와 35℃(적도 부근 온도) 조건에서 유류의 휘발특성을 비교하였다. 이를 위해, 일정 기간마다 채취한 유류를 전처리하여 GC/MS 분석을 수행하고, 탄화수소의 변화량을 계산하여 비교하였다.

Keywords

Acknowledgement

본 논문은 2020년도 목포해양대학교 교내연구비의 지원을 받아 수행한 연구결과임.

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