NON-IDEALITY IN H PERMEATION THROUGH PLATE MEMBRANES

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Under the commonly employed experimental conditions of a significant upstream concentration of H and c{sub H} {approx} 0 downstream, expressions are given for obtaining the concentration-independent D*{sub H} from the concentration dependent D{sub H} employing the known non-ideality. A procedure is given for determining the concentration profile for a given upstream concentration for an alloy where the non-ideality is known as a function of H concentration. For the Pd{sub 0.81}Ag{sub 0.19} alloy (423 K) the nonideality, f(r)<1 decreases the flux but for alloys where the non-ideality is in the opposite direction, f(r)>1, the flux will be greater which would be ... continued below

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Shanahan, K; Ted B. Flanagan, T & D. Wang, D July 13, 2006.

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Under the commonly employed experimental conditions of a significant upstream concentration of H and c{sub H} {approx} 0 downstream, expressions are given for obtaining the concentration-independent D*{sub H} from the concentration dependent D{sub H} employing the known non-ideality. A procedure is given for determining the concentration profile for a given upstream concentration for an alloy where the non-ideality is known as a function of H concentration. For the Pd{sub 0.81}Ag{sub 0.19} alloy (423 K) the nonideality, f(r)<1 decreases the flux but for alloys where the non-ideality is in the opposite direction, f(r)>1, the flux will be greater which would be an advantage for the experimental purification of H{sub 2}.

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  • Journal Name: Scripta Materialia

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  • Report No.: WSRC-STI-2006-00050
  • Grant Number: DE-AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 891657
  • Archival Resource Key: ark:/67531/metadc876723

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  • July 13, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • Nov. 2, 2016, 1 p.m.

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Shanahan, K; Ted B. Flanagan, T & D. Wang, D. NON-IDEALITY IN H PERMEATION THROUGH PLATE MEMBRANES, article, July 13, 2006; [Aiken, South Carolina]. (digital.library.unt.edu/ark:/67531/metadc876723/: accessed December 10, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.