Open AccessImproved Configurations For Liquefied Natural Gas Cycles
Author(s) -
Said Al Rabadi
Publication year - 2018
Publication title -
jordanian journal of engineering and chemical industries
Language(s) - English
Resource type - Journals
eISSN - 2617-720X
pISSN - 2616-9584
DOI - 10.48103/jjeci132018
Subject(s) - liquefied natural gas , liquefaction , natural gas , refrigerant , heat exchanger , process engineering , energy consumption , energy recovery , natural gas processing , environmental science , process (computing) , petroleum engineering , engineering , energy (signal processing) , waste management , mechanical engineering , computer science , geotechnical engineering , physics , electrical engineering , quantum mechanics , operating system
The most important challenge in a natural gas liquefaction plant is to improve the plant energy efficiency. A process topology should be implemented, which results in aconsiderable reduction of energy consumption as the natural gas liquefaction process consumes a large amount of energy. In particular, system design focusing on configuringcold part cycle is an attractive option. In this study, various energy recovery-oriented process configurations and the potential improvements of energy savings for small- & midscale liquefied natural gas plants were proposed and compared with almost exclusively commercial trademarks processes. These improved simulation based investigations werevalidated under the variation in feed gas pressure, mixed refrigerant cooling reference temperature and the pinch temperature of cryogenic plate fin heat exchanger. Thesimulation results exhibited considerable reduction of specific total energy consumption. Therefore, the proposed liquefaction cycles have a simple topology, hence lower capitalcost and compacter plant layout, which is compatible for power-efficient, offshore, floating liquefied natural gas liquefaction plants.