Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/103115
Author(s): | Patricia Pérez Carolina A. Cornaglia Adélio Mendes Luís M. Madeira Silvano Tosti |
Title: | Surface effects and CO/CO2 influence in the H2 permeation through a Pd-Ag membrane: A comprehensive model |
Issue Date: | 2015 |
Abstract: | The permeability of a 0.175 mm thick PdeAg tubular membrane to pure H2 and binarymixtures of H2/CO or H2/CO2 was studied. The tests were performed in a wide range oftemperature (523e723 K) and pressure (200e800 kPa).Pure H2-permeation through a dense metal membrane is described by the Sieverts' law.However, it was already found that the H2 permeation does not follow the Sieverts' lawwhen other components are present in the feed and namely CO or CO2. In this work, it isproposed a new permeation model based on the Sieverts' law considering: i) the masstransfer resistance due to the surface effects and ii) the barrier effect due to the presence ofeither CO or CO2. The model was successfully validated against experimental data ofhydrogen permeation for binary (H2/CO and H2/CO2) experiments for every working temperature and pressure. |
Subject: | Engenharia química, Engenharia química Chemical engineering, Chemical engineering |
Scientific areas: | Ciências da engenharia e tecnologias::Engenharia química Engineering and technology::Chemical engineering |
URI: | https://hdl.handle.net/10216/103115 |
Related Information: | info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projectos de I&DT em Todos os Domínios Científicos/PTDC/EQU-ERQ/098730/2008/Integração de Reactores de Membrana com Processos Adsorptivos usando-se Catalisadores Suportados em Monolitos para a Produção de Hidrogénio de Elevada Pureza/PTDC/EQU-ERQ/098730/2008 |
Document Type: | Artigo em Revista Científica Internacional |
Rights: | restrictedAccess |
Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
Files in This Item:
File | Description | Size | Format | |
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105625.1.pdf | Post-Print version | 1.18 MB | Adobe PDF | View/Open |
105625.pdf Restricted Access | Artigo original publicado | 635.95 kB | Adobe PDF | Request a copy from the Author(s) |
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