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SEPARATION OF HEAVY HYDROCARBONS AND METHANE FROM NATURAL GAS IN A SCRUB COLUMN AND PRODUCING L.N.G.
SEPARATION OF HEAVY HYDROCARBONS AND METHANE FROM NATURAL GAS IN A SCRUB COLUMN AND PRODUCING L.N.G.
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机译:从塔中的天然气中分离重烃和甲烷并生产L.N.G.
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摘要
A process for liquefying natural gas in which heavier hydrocarbons are separated in a scrub column from the natural gas prior to liquefaction. The feed to the scrub column is intercooled against the methane-rich overhead from said column and isentropically expanded before being introduced to the column and separated from the heavier hydrocarbons. The methane-rich overhead stream is compressed utilizing the mechanical energy of expansion and liquefied in a refrigerated heat exchanger.
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