RT Journal Article
T1 Systematic experimental assessment of concentration polarization and inhibition in Pd-based membranes for hydrogen purification
A1 Tosto, Eleonora
A1 Martinez-Diaz, David
A1 Sanz, Raúl
A1 Azzato, Giulia
A1 Calles, José Antonio
A1 Medrano, José Antonio
A1 Fernandez, Ekain
A1 Pacheco Tanaka, David Alfredo
A1 Gallucci, Fausto
A1 Alique, David
A1 Caravella, Alessio
AB In this work, we show the application of a systematic general experimental analysis to estimate in a relatively easy way the paired effects of concentration polarization and inhibition in the hydrogen permeation through diverse supported Pd-based membranes as functions of temperature and mixture composition. For this purpose, three different membranes are fabricated and tested under pure‑hydrogen and binary-mixture of H2-N2 and H2-CO. The former mixture is used to quantify the concentration polarization influence only, whereas the latter is used to quantify the overall combined effect of polarization and inhibition. Manipulating the two effects, we finally obtain the influence of inhibition only. As main results, a maximum overall permeation reduction of around 35%, 55% and 45% is evaluated for Mem#1, for Mem#2, for Mem#3, respectively. Moreover, a maximum concentration polarization coefficient of around 2.5%, 19% and 12% and a maximum inhibition coefficient of 32%, 45% and 40% are respectively evaluated. These values state the importance of having a tool able to take into account these detrimental phenomena in designing ultra-thin-membrane equipment, remarking that the same approach can be applied to other types of metal membranes as well.
SN 0378-3820
YR 2021
FD 2021-03
LA eng
NO Tosto , E , Martinez-Diaz , D , Sanz , R , Azzato , G , Calles , J A , Medrano , J A , Fernandez , E , Pacheco Tanaka , D A , Gallucci , F , Alique , D & Caravella , A 2021 , ' Systematic experimental assessment of concentration polarization and inhibition in Pd-based membranes for hydrogen purification ' , Fuel Processing Technology , vol. 213 , 106661 . https://doi.org/10.1016/j.fuproc.2020.106661
NO Publisher Copyright: © 2020 Elsevier B.V.
NO A. Caravella has received funding for this research through the “ Programma per Giovani Ricercatori Rita Levi Montalcini ” granted by the “ Ministero dell'Istruzione, dell'Università e della Ricerca, MIUR ” (Grant no. PGR12BV33A ), which is gratefully acknowledged. Researchers from Rey Juan Carlos University also acknowledge the support given by the Spanish government through the competitive project ENE2017-83696-R for ELP-PP membrane preparation.
DS TECNALIA Publications
RD 28 jul 2024