CARBON MOLECULAR SIEVE MEMBRANES FOR NITROGEN/METHANE SEPARATION

摘要

The various embodiments of the disclosure relate generally to carbon molecular sieve membranes (CMSM) and their associated fabrication processes for the separation of nitrogenmethane gas mixtures, and more particularly to CMSM that maintain high nitrogen-methane selectivity and high gas permeabilities. Methods for removing nitrogen from a nitrogen methane mixture gas via the use of the CMS membranes and gas enrichment devices using the same are also disclosed.

主权项

1. A gas separation membrane comprising a carbon molecular sieve, wherein the gas separation membrane has an nitrogenmethane selectivity of at least about 5.0, and a nitrogen permeability of at least about 3.0 Barrers at 35° C. and 65 psia in pure nitrogen and pure methane streams.