Method of extracting ethane from liquefied natural gas

摘要: Methods and systems for recovery of natural gas liquids (NGL) a pressurized methane-rich sales from liquefied (LNG) are disclosed. In certain embodiments, LNG passes through heat exchanger, thereby heating vaporizing at least portion the LNG. The partially vaporized to fractionation column where liquid stream enriched with ethane plus vapor withdrawn. withdrawn exchanger condense produce two phase stream, which is separated in separator into portion. A pump pressurizes prior vaporization delivery pipeline. may be compressed combined or used as plant site fuel.