Process for prevention of water build-up in cryogenic distillation column
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United States of America Patent
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Jan 5, 1988
Grant Date -
N/A
app pub date -
Aug 1, 1986
filing date -
Aug 1, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process by which a vapor side product stream is taken from the bottom section of a cryogenic distillation column, such as a propane or ethane recovery column, which process optionally employs a nonpolar liquid additive for use in the separation of acid gases from a hydrocarbon feed stream. The withdrawal of the vapor side stream prevents the build-up of water in the column which would ordinarily lead to free-water formation or the formation of solid hydrates in the cryogenic distillation column.
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