Method and Apparatus for Extracting Comtaminants from Water
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United States of America Patent
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Issued Date -
May 22, 2008
app pub date -
Jun 17, 2005
filing date -
Jun 18, 2004
priority date (Note) -
Abandoned
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Abstract
The present invention provides a method for mixing a liquefied hydrocarbon gas extracting a flow of hydrocarbon containing water. The method involves; a) introducing the liquefied hydrocarbon gas extracting into the water to provide water having entrained droplets of the extract and/or the hydrocarbon; b) subjecting the water to a first pressure drop to fragment the entrained droplets c) optionally, mixing the water and the liquefied hydrocarbon gas to promote distribution of the liquefied hydrocarbon gas in the water; and d) subsequently subjecting the water having entrained droplets to a second pressure drop, to coalesce the entrained droplets. The invention also provides a method for extracting contaminants involving the mixing method and apparatus suitable for carrying out the methods of the invention.
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