MODEL OF DIFFUSERS / PERMEATORS FOR HYDROGEN PROCESSING

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Palladium-silver (Pd-Ag) diffusers are mainstays of hydrogen processing. Diffusers separate hydrogen from inert species such as nitrogen, argon or helium. The tubing becomes permeable to hydrogen when heated to more than 250 C and a differential pressure is created across the membrane. The hydrogen diffuses better at higher temperatures. Experimental or experiential results have been the basis for determining or predicting a diffuser's performance. However, the process can be mathematically modeled, and comparison to experimental or other operating data can be utilized to improve the fit of the model. A reliable model-based diffuser system design is the goal which will ... continued below

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Hang, T & William Jacobs, W August 27, 2007.

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Palladium-silver (Pd-Ag) diffusers are mainstays of hydrogen processing. Diffusers separate hydrogen from inert species such as nitrogen, argon or helium. The tubing becomes permeable to hydrogen when heated to more than 250 C and a differential pressure is created across the membrane. The hydrogen diffuses better at higher temperatures. Experimental or experiential results have been the basis for determining or predicting a diffuser's performance. However, the process can be mathematically modeled, and comparison to experimental or other operating data can be utilized to improve the fit of the model. A reliable model-based diffuser system design is the goal which will have impacts on tritium and hydrogen processing. A computer model has been developed to solve the differential equations for diffusion given the operating boundary conditions. The model was compared to operating data for a low pressure diffuser system. The modeling approach and the results are presented in this paper.

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  • 8th International Conference on Tritium Science and Technology

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  • Report No.: WSRC-STI-2007-00452
  • Grant Number: DE-AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 915112
  • Archival Resource Key: ark:/67531/metadc877598

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  • August 27, 2007

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  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 2, 2016, 3:42 p.m.

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Hang, T & William Jacobs, W. MODEL OF DIFFUSERS / PERMEATORS FOR HYDROGEN PROCESSING, article, August 27, 2007; [Aiken, South Carolina]. (digital.library.unt.edu/ark:/67531/metadc877598/: accessed December 15, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.