| Title |
Investigation on Efficiency Improvement of the Nitrogen Expander Cycle : Natural Gas Liquefaction Process for LNG-FPSO |
| Authors |
백승환(Seungwhan Ba다) ; 정상권(Sangkwon Jeong) ; 김선영(Sunyoung Kim) |
| Keywords |
FPSO ; 액화 천연가스 ; 액화 ; 질소 ; 팽창기 FPSO ; LNG ; Liquefaction ; Nitrogen ; Expander |
| 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. |