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Title: Modeling Sulfur Poisoning of Palladium Membranes Used for Hydrogen Separation

Abstract

Hydrocarbons are the most important source for hydrogen production. A combined reaction-separation process using inorganic membranes can significantly increase the reaction conversion by shifting the equilibrium toward product formation. Sulfur poisoning is a significant problem as it deactivates the most commonly used metallic membranes. The relationship of the membrane activity and surface coverage with the surface structure has been recognized in the literature. A theoretical model to simulate hydrogen transport in the presence of sulfur compounds is presented. This model accounts for active site deactivation and permanent structural damage to the membrane. Transport and reaction rate parameters used in the model have been estimated from experimental data. Qualitatively, the model represents well the behavior of inorganic membranes, including partial membrane activity regeneration after the sulfur source is removed.

Authors:
ORCiD logo [1]; ORCiD logo [2]
  1. Prairie View A&M Univ., Prairie View, TX (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531239
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
International Journal of Chemical Engineering
Additional Journal Information:
Journal Volume: 2019; Journal Issue: N/A; Journal ID: ISSN 1687-806X
Publisher:
Hindawi
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 59 BASIC BIOLOGICAL SCIENCES

Citation Formats

Gabitto, Jorge, and Tsouris, Costas. Modeling Sulfur Poisoning of Palladium Membranes Used for Hydrogen Separation. United States: N. p., 2019. Web. doi:10.1155/2019/9825280.
Gabitto, Jorge, & Tsouris, Costas. Modeling Sulfur Poisoning of Palladium Membranes Used for Hydrogen Separation. United States. doi:10.1155/2019/9825280.
Gabitto, Jorge, and Tsouris, Costas. Sun . "Modeling Sulfur Poisoning of Palladium Membranes Used for Hydrogen Separation". United States. doi:10.1155/2019/9825280. https://www.osti.gov/servlets/purl/1531239.
@article{osti_1531239,
title = {Modeling Sulfur Poisoning of Palladium Membranes Used for Hydrogen Separation},
author = {Gabitto, Jorge and Tsouris, Costas},
abstractNote = {Hydrocarbons are the most important source for hydrogen production. A combined reaction-separation process using inorganic membranes can significantly increase the reaction conversion by shifting the equilibrium toward product formation. Sulfur poisoning is a significant problem as it deactivates the most commonly used metallic membranes. The relationship of the membrane activity and surface coverage with the surface structure has been recognized in the literature. A theoretical model to simulate hydrogen transport in the presence of sulfur compounds is presented. This model accounts for active site deactivation and permanent structural damage to the membrane. Transport and reaction rate parameters used in the model have been estimated from experimental data. Qualitatively, the model represents well the behavior of inorganic membranes, including partial membrane activity regeneration after the sulfur source is removed.},
doi = {10.1155/2019/9825280},
journal = {International Journal of Chemical Engineering},
number = N/A,
volume = 2019,
place = {United States},
year = {2019},
month = {3}
}

Journal Article:
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