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Separation Science and Technology Volume 34, 1999 - Issue 10
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Original Articles

Selective Surface Flow Membrane for Gas Separation

S. SIRCAR AIR PRODUCTS AND CHEMICALS, INC., 7201 HAMILTON BOULEVARD, ALLENTOWN, PENNSYLVANIA, 18195-1501, USA
,
M. B. RAO AIR PRODUCTS AND CHEMICALS, INC., 7201 HAMILTON BOULEVARD, ALLENTOWN, PENNSYLVANIA, 18195-1501, USA
&
C. M. A. THAERON AIR PRODUCTS AND CHEMICALS, INC., 7201 HAMILTON BOULEVARD, ALLENTOWN, PENNSYLVANIA, 18195-1501, USA
Pages 2081-2093 | Published online: 15 Feb 2007
 
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Abstract

The selective surface flow membrane is a nanoporous carbon membrane which separates gas mixtures by a selective adsorption–surface diffusion–desorption mechanism. It selectively permeates the larger and the more polar components of a feed gas mixture. The separation characteristics of several different gas mixtures by the membrane are described. The membrane has been field-tested at a refinery site for separation of hydrocarbon–hydrogen mixtures.

Acknowledgments

Notes

†SSF is a trademark of Air Products and Chemicals, Inc.

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