发明名称 |
INTEGRATED METHANE REFRIGERATION SYSTEM FOR LIQUEFYING NATURAL GAS |
摘要 |
Described herein is a method and system for liquefying a natural gas feed stream to produce an LNG product. The natural gas feed stream is liquefied, by indirect heat exchange with a gaseous methane or natural gas refrigerant circulating in a gaseous expander cycle, to produce a first LNG stream. The first LNG stream is expanded, and the resulting vapor and liquid phases are separated to produce a first flash gas stream and a second LNG stream. The second LNG stream is then expanded, with the resulting vapor and liquid phases being separated to produce the second flash gas stream and a third LNG stream, all or a portion of which forms the LNG product. Refrigeration is recovered from the second flash gas by using said stream to sub-cool the second LNG stream or a supplementary LNG stream. |
申请公布号 |
CA2927347(A1) |
申请公布日期 |
2016.10.24 |
申请号 |
CA20162927347 |
申请日期 |
2016.04.18 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
ROBERTS, MARK JULIAN;CHEN, FEI;LIU, YANG |
分类号 |
F25J1/02 |
主分类号 |
F25J1/02 |
代理机构 |
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代理人 |
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地址 |
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