Gas separation: processes – Liquid contacting – Surfactant or wetting agent
Reexamination Certificate
2005-07-12
2005-07-12
Lawrence, Frank M. (Department: 1724)
Gas separation: processes
Liquid contacting
Surfactant or wetting agent
C095S237000, C585S015000, C585S833000
Reexamination Certificate
active
06916361
ABSTRACT:
A method for the separation of non-hydrocarbon gases from hydrocarbon gases, the method comprising the steps of: adding water and an agent adapted to reduce the interfacial tension between water and hydrocarbons to a first stream of desired hydrocarbon and undesired non-hydrocarbon gases to form a gas-agent-water mixture; pressurising the gas-agent-water mixture; and cooling the gas-water-agent mixture to initiate the formation of a hydrate richer in desired hydrocarbons and leaner in undesired non-hydrocarbons relative to the first stream of desired hydrocarbon and undesired non-hydrocarbon gases.
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Derwent Accession #2001-445173/48, Mar. 21, 2001.
Amin Robert
Jackson Alan
Edell Shapiro & Finnan LLC
Lawrence Frank M.
Metasource Pty, Ltd.
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