Is a
Patent attributes
Patent Applicant
0
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Zhenjie He0
Ingo Pinnau0
Rolande J. Blanc0
Date of Patent
May 24, 2005
0Patent Application Number
106128070
Date Filed
July 2, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A membrane-based process for separating mixtures of target gases if the gas mixture also contains C3+ hydrocarbon vapors. The process uses gas-separation membranes having a base membrane and a coating layer. The base membrane incorporates a selective layer made from a polymer selective between the light gases to be separated. The coating layer comprises a fluorinated polymer capable of protecting the base membrane from C3+ hydrocarbon vapors and liquids.
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