한국산업융합학회 논문집 (Journal of the Korean Society of Industry Convergence)

한국산업융합학회 (The Korean Society of Industry Convergence)
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HAZOP을 통한 해양플랜트 흡착식 탈수공정 패키지의 위험성평가 및 안전도 향상 방안

A Case Study on the Risk Assessment for Offshore Plant Solid Desiccant Dehydration Package by using HAZOP

  • 노현정 (선박해양플랜트연구소 해양플랜트산업지원센터) ;
  • 박상현 (한양대학교 미래자동차공학과) ;
  • 조수길 (선박해양플랜트연구소 해양플랜트산업지원센터) ;
  • 강관구 (선박해양플랜트연구소 해양플랜트산업지원센터) ;
  • 김형우 (선박해양플랜트연구소 해양플랜트산업지원센터)
  • 투고 : 2020.05.12
  • 심사 : 2020.06.26
  • 발행 : 2020.08.31
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초록

Since the dehydration packages of offshore plant deal directly with oil & gas, there is a great risk of fire and explosion during operation. Therefore, this study performed risk assessment through HAZard & OPerability (HAZOP) for solid desiccant dehydration package that can remove water component of natural gas in offshore floating liquefied natural gas (LNG) production facilities below 0.1 ppmv. The risk matrix was determined by dividing the likelihood and the severity into five levels separately by asset, life, environment and reputation. The piping & instrumentation diagram (P&ID) of the dehydration package was divided into 9 nodes. Total 22 deviations were assessed in consideration of the adsorption and desorption conversion cycle. A risk assessment based on deviations revealed 14 major hazards. Three representative types of hazards were open/close failure of the control valve, control failure of the heater, and abnormal operation of the regeneration gas cooler. Finally, we proposed the installation of additional safety devices to improve safety against these major hazards, such as safety instrumented functions, alarms, etc.

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참고문헌

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