Process for removing oxygenated contaminants from an hydrocarbon stream
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United States of America Patent
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Sep 30, 2014
Issued Date -
Jul 4, 2013
app pub date -
Dec 20, 2010
filing date -
Dec 20, 2010
priority date (Note) -
Withdrawn
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Abstract
The present invention is a process for removing oxygenated contaminants and water from an hydrocarbon stream comprising:
- introducing the contaminated hydrocarbon stream in a gaseous phase in an absorption zone,contacting said hydrocarbon stream in said absorption zone at a pressure of at least 5 bars, advantageously in the range 5 to 40 bars with an alcohol capable to absorb water and oxygenated contaminants at conditions effective to produce an overhead hydrocarbon stream having a reduced oxygenated contaminants and water content andan absorbent bottoms stream comprising the alcohol, hydrocarbons and having an enhanced oxygenated contaminants and water content, sending the overhead of the absorption zone to a wash column (referred to as the high pressure water wash column) at a pressure of at least 5 bars, advantageously in the range 5 to 40 bars, essentially washed with water at conditions effective to produce an overhead hydrocarbon stream having a reduced oxygenated contaminants andan aqueous bottoms stream having an enhanced oxygenated contaminants content.
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