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Preparation, Characterization, and Activity of Pd/PSS-Modified Membranes in the Low Temperature Dry Reforming of Methane with and without Addition of Extra Steam
The external surface of a commercial porous stainless steel (PSS) was modified by either oxidation in air at varying temperatures (600, 700, and 800 °C) or coating with different oxides (SiO(2), Al(2)O(3), and ZrO(2)). Among them, PSS-ZrO(2) appears as the most suitable carrier for the synthesis of...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8307832/ https://www.ncbi.nlm.nih.gov/pubmed/34357168 http://dx.doi.org/10.3390/membranes11070518 |
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author | Mateos-Pedrero, Cecilia Soria, Miguel A. Guerrero-Ruíz, Antonio Rodríguez-Ramos, Inmaculada |
author_facet | Mateos-Pedrero, Cecilia Soria, Miguel A. Guerrero-Ruíz, Antonio Rodríguez-Ramos, Inmaculada |
author_sort | Mateos-Pedrero, Cecilia |
collection | PubMed |
description | The external surface of a commercial porous stainless steel (PSS) was modified by either oxidation in air at varying temperatures (600, 700, and 800 °C) or coating with different oxides (SiO(2), Al(2)O(3), and ZrO(2)). Among them, PSS-ZrO(2) appears as the most suitable carrier for the synthesis of the Pd membrane. A composite Pd membrane supported on the PSS-ZrO(2) substrate was prepared by the electroless plating deposition method. Supported Ru catalysts were first evaluated for the low-temperature methane dry reforming (DRM) reaction in a continuous flow reactor (CR). Ru/ZrO(2)-La(2)O(3) catalyst was found to be active and stable, so it was used in a membrane reactor (MR), which enhances the methane conversions above the equilibrium values. The influence of adding H(2)O to the feed of DRM was investigated over a Ru/ZrO(2)-La(2)O(3) catalyst in the MR. Activity results are compared with those measured in a CR. The addition of H(2)O into the feed favors other reactions such as Water-Gas Shift (RWGS) and Steam Reforming (SR), which occur together with DRM, resulting in a dramatic decrease of CO(2) conversion and CO production, but a marked increase of H(2) yield. |
format | Online Article Text |
id | pubmed-8307832 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-83078322021-07-25 Preparation, Characterization, and Activity of Pd/PSS-Modified Membranes in the Low Temperature Dry Reforming of Methane with and without Addition of Extra Steam Mateos-Pedrero, Cecilia Soria, Miguel A. Guerrero-Ruíz, Antonio Rodríguez-Ramos, Inmaculada Membranes (Basel) Article The external surface of a commercial porous stainless steel (PSS) was modified by either oxidation in air at varying temperatures (600, 700, and 800 °C) or coating with different oxides (SiO(2), Al(2)O(3), and ZrO(2)). Among them, PSS-ZrO(2) appears as the most suitable carrier for the synthesis of the Pd membrane. A composite Pd membrane supported on the PSS-ZrO(2) substrate was prepared by the electroless plating deposition method. Supported Ru catalysts were first evaluated for the low-temperature methane dry reforming (DRM) reaction in a continuous flow reactor (CR). Ru/ZrO(2)-La(2)O(3) catalyst was found to be active and stable, so it was used in a membrane reactor (MR), which enhances the methane conversions above the equilibrium values. The influence of adding H(2)O to the feed of DRM was investigated over a Ru/ZrO(2)-La(2)O(3) catalyst in the MR. Activity results are compared with those measured in a CR. The addition of H(2)O into the feed favors other reactions such as Water-Gas Shift (RWGS) and Steam Reforming (SR), which occur together with DRM, resulting in a dramatic decrease of CO(2) conversion and CO production, but a marked increase of H(2) yield. MDPI 2021-07-09 /pmc/articles/PMC8307832/ /pubmed/34357168 http://dx.doi.org/10.3390/membranes11070518 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Mateos-Pedrero, Cecilia Soria, Miguel A. Guerrero-Ruíz, Antonio Rodríguez-Ramos, Inmaculada Preparation, Characterization, and Activity of Pd/PSS-Modified Membranes in the Low Temperature Dry Reforming of Methane with and without Addition of Extra Steam |
title | Preparation, Characterization, and Activity of Pd/PSS-Modified Membranes in the Low Temperature Dry Reforming of Methane with and without Addition of Extra Steam |
title_full | Preparation, Characterization, and Activity of Pd/PSS-Modified Membranes in the Low Temperature Dry Reforming of Methane with and without Addition of Extra Steam |
title_fullStr | Preparation, Characterization, and Activity of Pd/PSS-Modified Membranes in the Low Temperature Dry Reforming of Methane with and without Addition of Extra Steam |
title_full_unstemmed | Preparation, Characterization, and Activity of Pd/PSS-Modified Membranes in the Low Temperature Dry Reforming of Methane with and without Addition of Extra Steam |
title_short | Preparation, Characterization, and Activity of Pd/PSS-Modified Membranes in the Low Temperature Dry Reforming of Methane with and without Addition of Extra Steam |
title_sort | preparation, characterization, and activity of pd/pss-modified membranes in the low temperature dry reforming of methane with and without addition of extra steam |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8307832/ https://www.ncbi.nlm.nih.gov/pubmed/34357168 http://dx.doi.org/10.3390/membranes11070518 |
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