High carbon content filamentary membrane and method of making the same

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dc.contributor.assigneeThe Board of Regents of the University of Texas System
dc.creatorWilliam Koros
dc.creatorDe Q. Vu
dc.date.accessioned2019-10-23T19:32:57Z
dc.date.available2019-10-23T19:32:57Z
dc.date.filed2001-10-03
dc.date.issued2003-05-20
dc.description.abstractA high carbon content membrane and method for making the same are disclosed. The carbon membrane includes an asymmetric hollow filamentary carbon membrane, including a partial carbonization product of an asymmetric hollow filament including an aromatic imide polymer material. The carbon membrane is at least 95 weight percent carbon, and has a dense layer located in the outside surface portion of the hollow filamentary membrane and a porous base layer continued from the dense layer and located in the inside portion of the hollow filamentary membrane. A process for separating CO2 from natural gas is described including: contacting a mixture of CO2 and natural gas with a first side of a carbon membrane in a manner to cause a portion of the mixture to pass through the carbon membrane to a permeate side. The resulting mixture on the permeate side becomes enriched in CO2 over that of the mixture on the first side. The contacting step occurs at a pressure of at least about 200 psia.
dc.description.departmentBoard of Regents, University of Texas System
dc.identifier.applicationnumber9970541
dc.identifier.patentnumber6565631
dc.identifier.urihttps://hdl.handle.net/2152/77127
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/4216
dc.publisherUnited States Patent and Trademark Office
dc.relation.ispartofUniversity of Texas Patents
dc.relation.ispartofUniversity of Texas Patents
dc.rights.restrictionOpen
dc.rights.restrictionOpen
dc.subject.cpcB01D69/02
dc.subject.cpcB01D53/228
dc.subject.cpcB01D69/08
dc.subject.cpcB01D71/021
dc.subject.cpcB01D2257/504
dc.subject.cpcB01D2323/08
dc.subject.cpcY02C10/10
dc.subject.cpcY10S55/05
dc.subject.uspc55/DIG5
dc.subject.uspc95/51
dc.subject.uspc96/8
dc.subject.uspc96/10
dc.subject.uspc96/14
dc.titleHigh carbon content filamentary membrane and method of making the same
dc.typePatent

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