Sorption-enhanced ethanol steam reforming process in a fixed-bed reactor
Sorption-enhanced ethanol steam reforming is an alternative to nonrenewable sources to produce high purity hydrogen by simplifying the purification train required to obtain cell grade hydrogen. In this work, NiMgAl hydrotalcite was used as a catalyst precursor and CaO as a sorbent. The catalyst-sorb...
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2018
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08885885_v57_n34_p11547_Menendez http://hdl.handle.net/20.500.12110/paper_08885885_v57_n34_p11547_Menendez |
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paper:paper_08885885_v57_n34_p11547_Menendez2023-06-08T15:47:00Z Sorption-enhanced ethanol steam reforming process in a fixed-bed reactor Catalysts Chemical reactors Ethanol Hydrogen production Sorbents Sorption Ternary alloys Breakthrough periods Catalyst precursors CO concentrations Ethanol steam reforming Fixed bed reactor Hydrogen yields Non-renewable Reaction temperature Steam reforming Sorption-enhanced ethanol steam reforming is an alternative to nonrenewable sources to produce high purity hydrogen by simplifying the purification train required to obtain cell grade hydrogen. In this work, NiMgAl hydrotalcite was used as a catalyst precursor and CaO as a sorbent. The catalyst-sorbent configuration in the fixed-bed reactor, the effect of the sorbent/catalyst mass ratio, and the reaction temperature were the focus of our study. It was found that the well-mixed catalyst and sorbent configuration resulted in the highest hydrogen purity in the prebreakthrough period and the lowest CO concentration. Besides, it was possible to produce high purity hydrogen (>95%) at 723 K with a hydrogen yield equal to that obtained at 873 K without sorbent. Finally, it was corroborated that after 20 reaction/regeneration cycles the CO concentration was still lower than that obtained at the WGS reactor exit. © 2018 American Chemical Society. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08885885_v57_n34_p11547_Menendez http://hdl.handle.net/20.500.12110/paper_08885885_v57_n34_p11547_Menendez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Catalysts Chemical reactors Ethanol Hydrogen production Sorbents Sorption Ternary alloys Breakthrough periods Catalyst precursors CO concentrations Ethanol steam reforming Fixed bed reactor Hydrogen yields Non-renewable Reaction temperature Steam reforming |
| spellingShingle |
Catalysts Chemical reactors Ethanol Hydrogen production Sorbents Sorption Ternary alloys Breakthrough periods Catalyst precursors CO concentrations Ethanol steam reforming Fixed bed reactor Hydrogen yields Non-renewable Reaction temperature Steam reforming Sorption-enhanced ethanol steam reforming process in a fixed-bed reactor |
| topic_facet |
Catalysts Chemical reactors Ethanol Hydrogen production Sorbents Sorption Ternary alloys Breakthrough periods Catalyst precursors CO concentrations Ethanol steam reforming Fixed bed reactor Hydrogen yields Non-renewable Reaction temperature Steam reforming |
| description |
Sorption-enhanced ethanol steam reforming is an alternative to nonrenewable sources to produce high purity hydrogen by simplifying the purification train required to obtain cell grade hydrogen. In this work, NiMgAl hydrotalcite was used as a catalyst precursor and CaO as a sorbent. The catalyst-sorbent configuration in the fixed-bed reactor, the effect of the sorbent/catalyst mass ratio, and the reaction temperature were the focus of our study. It was found that the well-mixed catalyst and sorbent configuration resulted in the highest hydrogen purity in the prebreakthrough period and the lowest CO concentration. Besides, it was possible to produce high purity hydrogen (>95%) at 723 K with a hydrogen yield equal to that obtained at 873 K without sorbent. Finally, it was corroborated that after 20 reaction/regeneration cycles the CO concentration was still lower than that obtained at the WGS reactor exit. © 2018 American Chemical Society. |
| title |
Sorption-enhanced ethanol steam reforming process in a fixed-bed reactor |
| title_short |
Sorption-enhanced ethanol steam reforming process in a fixed-bed reactor |
| title_full |
Sorption-enhanced ethanol steam reforming process in a fixed-bed reactor |
| title_fullStr |
Sorption-enhanced ethanol steam reforming process in a fixed-bed reactor |
| title_full_unstemmed |
Sorption-enhanced ethanol steam reforming process in a fixed-bed reactor |
| title_sort |
sorption-enhanced ethanol steam reforming process in a fixed-bed reactor |
| publishDate |
2018 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08885885_v57_n34_p11547_Menendez http://hdl.handle.net/20.500.12110/paper_08885885_v57_n34_p11547_Menendez |
| _version_ |
1768542945780170752 |