Detailed kinetic mechanism for the hydrogen production via the oxidative reforming of ethanol
| Autor: | Gianmaria Pio, Vincenzo Palma, Concetta Ruocco, Ernesto Salzano |
|---|---|
| Přispěvatelé: | Pio, G., Ruocco, C., Palma, V., Salzano, E. |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
General Chemical Engineering
Kinetics Detailed kinetic mechanism Bioethanol 02 engineering and technology Raw material Hydrogen atom abstraction Industrial and Manufacturing Engineering Catalysis Steam reforming 020401 chemical engineering Detailed kinetic mechanisms 0204 chemical engineering Hydrogen production Oxidative steam reforming Ethanol Chemistry Applied Mathematics General Chemistry Coke 021001 nanoscience & nanotechnology Catalysts optimization Chemical engineering 0210 nano-technology Syngas |
| Popis: | Ethanol is increasingly growing as feedstock for syngas production. In this work, a detailed kinetic mechanism for the oxidative steam reforming (OSR) of ethanol over a Pt-Ni/CeO2-SiO2 catalyst has been compared against experimental data and apparent kinetics. The rate of production and sensitivity analyses were performed to identify reaction paths, species, and reactions having a significant impact on the distribution of the products. The results have demonstrated that the formation of CH3CHO, which leads to the CH3 and CO, is due to the hydrogen abstraction forming the CH3CHOH, whereas the formation of C2H4, which leads to HCO, CH3, and coke precursors, is related to the pathways forming CH2CH2OH. The production of CH2CH2OH is successfully hindered by the presence of catalysts, giving a phenomenological reason for the suppression in coke formation. This analysis provides theoretical insights into the kinetic aspects of OSR, aiming at the development of optimized catalysts. |
| Databáze: | OpenAIRE |
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