Current status of dense ceramic membranes for hydrogen separation.

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We have developed cermet membranes that nongalvanically separate hydrogen from gas mixtures. The highest measured hydrogen flux was 16.2 cm{sup 3} (STP)/min-cm{sup 2} for an ANL-3a membrane at 900 C. For ANL-3 membranes with thickness of 0.04-0.5 mm, permeation rate is limited by the bulk diffusion of hydrogen through the metal phase. The effect of hydrogen partial pressure on permeation rate confirmed this conclusion and suggested that higher permeation rates may be obtained by decreasing the membrane thickness. Permeation rate in a syngas atmosphere for times up to 190 h showed no degradation in performance, which indicates that ANL-3 may ... continued below

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12 pages

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Balachandran, U.; Lee, T. H.; Wang, S.; Zhang, G. & Dorris, S. E. February 22, 2002.

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We have developed cermet membranes that nongalvanically separate hydrogen from gas mixtures. The highest measured hydrogen flux was 16.2 cm{sup 3} (STP)/min-cm{sup 2} for an ANL-3a membrane at 900 C. For ANL-3 membranes with thickness of 0.04-0.5 mm, permeation rate is limited by the bulk diffusion of hydrogen through the metal phase. The effect of hydrogen partial pressure on permeation rate confirmed this conclusion and suggested that higher permeation rates may be obtained by decreasing the membrane thickness. Permeation rate in a syngas atmosphere for times up to 190 h showed no degradation in performance, which indicates that ANL-3 may be suitable for long-term, practical hydrogen separation.

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12 pages

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  • The 27th International Technical Conference on Coal Utilization and Fuel Systems, Clearwater, FL (US), 03/04/2002--03/07/2002

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  • Report No.: ANL/ET/CP-106963
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 793066
  • Archival Resource Key: ark:/67531/metadc739523

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  • February 22, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • March 11, 2016, 6:12 p.m.

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Balachandran, U.; Lee, T. H.; Wang, S.; Zhang, G. & Dorris, S. E. Current status of dense ceramic membranes for hydrogen separation., article, February 22, 2002; Illinois. (digital.library.unt.edu/ark:/67531/metadc739523/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.