发明名称 |
METHOD OF EXTRACTING ETHANE FROM LIQUEFIED NATURAL GAS |
摘要 |
Methods and systems for recovery of natural gas liquids (NGL) and a pressurized methane-rich sales gas from liquefied natural gas (LNG) are disclosed. In certain embodiments, LNG passes through a heat exchanger, thereby heating and vaporizing at least a portion of the LNG. The partially vaporized LNG passes to a fractionation column where a liquid stream enriched with ethane plus and a methane-rich vapor stream are withdrawn. The withdrawn methane-rich vapor stream passes through the heat exchanger to condense the vapor and produce a two phase stream, which is separated in a separator into at least a methane-rich liquid portion and a methane-rich gas portion. A pump pressurizes the methane-rich liquid portion prior to vaporization and delivery to a pipeline. The methane-rich gas portion may be compressed and combined with the vaporized methane-rich liquid portion or used as plant site fuel. |
申请公布号 |
EP1789739(A1) |
申请公布日期 |
2007.05.30 |
申请号 |
EP20050786403 |
申请日期 |
2005.08.17 |
申请人 |
EXXONMOBIL UPSTREAM RESEARCH COMPANY |
发明人 |
DENTON, ROBERT D.;OELFKE, RUSSELL, H.;BRIMM, ALLEN, E. |
分类号 |
F25J3/00;F17C9/02 |
主分类号 |
F25J3/00 |
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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