Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Investigation on Efficiency Improvement of the Nitrogen Expander Cycle : Natural Gas Liquefaction Process for LNG-FPSO

LNG-FPSO(Liquefied Natural Gas-Floating Production Storage and Offloading)용 질소 팽창 사이클의 효율 개선에 대한 연구

  • Received : 2009.12.11
  • Published : 2010.07.10
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Abstract

FPSO (Floating Production Strorage and Offloading) method for LNG industry is efficient and facile compared to onshore NG (Natural Gas) treatment facility. Five simple natural gas liquefaction cycles for FPSO are presented and simulated in this paper. SMR (Single Mixed Refrigerant) cycle, SNE (Single Nitrogen Expander) cycle, DNE (Double Nitrogen Expander) cycle, PNE (Precooled Nitrogen Expander) cycle, and PDNE (Precooled Double Nitrogen Expander) cycle are compared. Simple analysis results in this paper show that precooling process and adding an expander in the liquefaction cycle is an effective way to increase liquefaction efficiency.

Keywords

References

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