Monoliths washcoated with AuCu catalysts for CO removal in an ethanol fuel processor: Effect of CeO2–SiO2 dual support on the catalytic performance and reactor cost
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10.1016/j.ijhydene.2020.10.122
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/333367
Tipus de documentArticle
Data publicació2021-01-06
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
CO removal from a syngas was evaluated in a single catalytic unit using structured AuCu/CeO2–SiO2 catalysts. Initially, AuCu/CeO2–SiO2 powder catalysts with several SiO2 loadings (0–100 mol%) were assessed. SiO2 addition into AuCu/CeO2 increased the surface area by up to 3.4 times and reduced its cost by up to 60%, but reduced CO conversion. On the other hand, the AuCu/CeO2–SiO2 catalyst washcoated on monolith outperformed the powder samples at temperatures above 260 °C. In particular, outlet CO concentrations adequate to feed high temperature fuel cells were obtained with monoliths washcoated with AuCu/CeO2 (0.2% CO) and AuCu/CeO2–SiO2 with 75 mol% of SiO2 (3.6% CO). Furthermore, the Au/CeO2–SiO2 monolith (14 $/gcat) is 36% cheaper than the AuCu/CeO2 monolith, paving the road to the development of compact and economic H2 cleanup processes.
CitacióCifuentes, B. [et al.]. Monoliths washcoated with AuCu catalysts for CO removal in an ethanol fuel processor: Effect of CeO2–SiO2 dual support on the catalytic performance and reactor cost. "International journal of hydrogen energy", 6 Gener 2021, vol. 46, núm. 2, p. 2166-2181.
ISSN0360-3199
Versió de l'editorhttps://www.sciencedirect.com/science/article/abs/pii/S0360319920339689
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Monoliths for CO removal Bernay.pdf | 1,320Mb | Visualitza/Obre |