Process for liquefying methane
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United States of America Patent
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-
May 1, 1984
Grant Date -
N/A
app pub date -
Aug 30, 1982
filing date -
Aug 30, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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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