MANUFACTURING CARBON MOLECULAR SIEVE MEMBRANES USING A PYROLYSIS ATMOSPHERE COMPRISING SULFUR-CONTAINING COMPOUNDS
First Claim
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1. A method for producing a CMS membrane, comprising the steps of:
- forming a polymeric precursor membrane; and
pyrolyzing the polymeric precursor membrane in a pyrolysis atmosphere containing 5 ppm (vol/vol) to 50% (vol/vol) of an sulfur-containing compound in a balance of inert gas.
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Abstract
A carbon molecular sieve (CMS) membrane is made by pyrolyzing a polymeric precursor membrane in a pyrolysis atmosphere containing a sulfur-containing compound.
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Citations
8 Claims
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1. A method for producing a CMS membrane, comprising the steps of:
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forming a polymeric precursor membrane; and pyrolyzing the polymeric precursor membrane in a pyrolysis atmosphere containing 5 ppm (vol/vol) to 50% (vol/vol) of an sulfur-containing compound in a balance of inert gas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification