Economic evaluation of a new small-scale LNG supply chain using liquid nitrogen for natural-gas liquefaction = 액화질소를 이용한 새로운 소규모 액화천연가스 공급망의 경제성 평가

This study proposes a new LNG (Liquefied Natural Gas) supply chain using liquid nitrogen to liquefy natural gas, which is reserved on a small scale or is being flared, and analyzes the life cycle cost (LCC) and life cycle profit (LCP) for the supply chain. Natural gas was liquefied with the latent heat of cryogenic liquid nitrogen (LN2) with no turbo-machine. The LNG was transported to the LN2 production site where LN2 was produced with the cold energy of the LNG. Then, LN2 was transferred to the LNG production site again. To verify the economics of this supply chain, the LCC and LCP were estimated with different design and operation conditions. This supply chain is significantly profitable because it uses the cold energy of both LN2 and LNG. The results of LCC and LCP show that the supply chain maximizes the profits when the pressure of the LNG product is approximately 7 bar. Additionally, the distance between the LNG production site and the LN2 production site is the dominant parameter that governs the economics of this supply chain.
Advisors
Chang, Daejunresearcher장대준researcher
Publisher
한국과학기술원
Issue Date
2016
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 해양시스템대학원, 2016.2 ,[v, 34 p. :]

Keywords

natural gas recovery; stranded gas; LNG; life-cycle cost; life-cycle profit; natural gas liquefaction; cold energy recovery; liquid nitrogen; liquefied natural gas; 액화천연가스; 천연가스 공급망; 액화질소; 생애주기비용; 한계 가스전

URI
http://hdl.handle.net/10203/222043
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=649764&flag=t
Appears in Collection
OSE-Theses_Master(석사논문)
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