Title:
Method of Making Carbon Molecular Sieve Membranes

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dc.contributor.patentcreator Hessler, John
dc.contributor.patentcreator Koros, William J.
dc.contributor.patentcreator Xu, Liren
dc.contributor.patentcreator Brayden, Mark K.
dc.contributor.patentcreator Martinez, Marcos V.
dc.date.accessioned 2022-07-08T14:21:35Z
dc.date.available 2022-07-08T14:21:35Z
dc.date.filed 11/30/2016
dc.date.issued 9/28/2021
dc.description.abstract The invention is an improved method of making a carbon molecular sieve (CMS) membrane in which a precursor polymer is pyrolyzed to form a carbon molecular sieve membrane that is then exposed to a conditioning atmosphere comprised of a target permeate gas molecule such as ethylene when the membrane is desired to separate it from a light hydrocarbon gas stream. The exposure to the ethylene desirably occurs prior to the CMS permeance and selectivity combination substantially changing (e.g., within 5 days) of cooling from the pyrolyzing temperature. The CMS membranes have shown an improved combination of selectivity and permeance as well as stability and are useful to separate gases in gas streams such methane from natural gas, oxygen from air and ethylene or propylene from light hydrocarbon streams.
dc.description.assignee Dow Global Technologies LLC
dc.description.assignee Georgia Tech Research Corporation
dc.identifier.cpc B01D 67/0002
dc.identifier.cpc B01D 71/021
dc.identifier.cpc B01D 53/22
dc.identifier.patentapplicationnumber US 16/062,118
dc.identifier.patentnumber 11130098
dc.identifier.uri http://hdl.handle.net/1853/67054
dc.title Method of Making Carbon Molecular Sieve Membranes
dspace.entity.type Publication
local.contributor.corporatename Georgia Institute of Technology
local.relation.ispartofseries Georgia Tech Patents
relation.isOrgUnitOfPublication cc30e153-7a64-4ae2-9b1d-5436686785e3
relation.isSeriesOfPublication 0f49c79d-4efb-4bd9-b060-5c7f9191b9da
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