High capacity production of carbon molecular sieve membranes
OwnerChen Zhang, Ching-En Kuinventors
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Abstract
The present disclosure relates to carbon molecular sieve membranes, methods of making carbon molecular sieve membranes through bundle pyrolysis, and uses thereof for separating a mixture of gases. The carbon molecular sieve membranes formed by bundle pyrolysis of the present invention can be readily scaled to dozens or hundreds of fibers per module, retain excellent gas selectivity properties, and are able to be selective towards separating gases, such as H2, from a mixture of gases, and are faster to produce compared to carbon molecular sieve membranes formed through individual pryolysis.
Claims18
A method of making a carbon molecular sieve (CMS) hollow fiber membrane, said method comprising:
- a. providing a precursor hollow fiber membrane;
- b. inserting said precursor hollow fiber membrane into a tubing;
- and
- c. pyrolyzing said precursor membrane to obtain a CMS hollow fiber membrane,
- wherein said CMS hollow fiber membrane contains at least 5 hollow fibers.
A carbon molecular sieve membrane, said membrane comprising at least 20, about 20 to about 1,000,000, about 100 to about 1,000,000 or about 1000 to about 100,000, about 30 to about 10,000 hollow fibers.
Dependencies are inferred from the claim text.