Process for prevention of water build-up in cryogenic distillation column

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United States of America Patent

PATENT NO 4717408
SERIAL NO

06892920

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Abstract

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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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Patent Owner(s)

  • CHART INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hopewell, Richard B Medfield, MA 6 163

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