发明名称 |
Fremgangsmåde og system til optimeret LNG-produktion |
摘要 |
A method and system for producing liquefied and sub-cooled natural gas by means of a refrigeration assembly using a single phase gaseous refrigerant comprising: at least two expanders (1-3); a compressor assembly (5-7); a heat exchanger assembly (8) for heat absorption from natural gas; and a heat rejection assembly (10-12). The novel features according to the present invention are arranging the expanders (1-3) in expander loops; using only one and the same refrigerant in all loops; passing an expanded refrigerant flow from the respective expander into the heat exchanger assembly (8), each being at a mass flow and temperature level adapted to de-superheating, condensation or cooling of dense phase and/or sub-cooling of natural gas; and serving the refrigerant to the respective expander in a compressed flow by means of the compressor assembly having compressors or compressor stages enabling adapted inlet and outlet pressures for the respective expander. |
申请公布号 |
DK2331897(T3) |
申请公布日期 |
2016.08.22 |
申请号 |
DK20090788380T |
申请日期 |
2009.08.27 |
申请人 |
Wärtsilä Oil & Gas Systems AS |
发明人 |
HAUKEDAL, Bjørn Harald;JAKOBSEN, Arne;RUMMELHOFF, Carl Jørgen |
分类号 |
F25J1/00;F25J1/02 |
主分类号 |
F25J1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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