Theoretical Investigation of the Deactivation of Ni Supported Catalysts for the Catalytic Deoxygenation of Palm Oil for Green Diesel Production
Journal article
Hafeez, S., Al-Salem, S., Papageridis, Kyriakos N, Charisiou, Nikolaos D, Goula, M., Manos, G. and Constantinou, A. (2021). Theoretical Investigation of the Deactivation of Ni Supported Catalysts for the Catalytic Deoxygenation of Palm Oil for Green Diesel Production. Catalysts. 11 (6), p. e747. https://doi.org/10.3390/catal11060747
Authors | Hafeez, S., Al-Salem, S., Papageridis, Kyriakos N, Charisiou, Nikolaos D, Goula, M., Manos, G. and Constantinou, A. |
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Abstract | For the first time, a fully comprehensive heterogeneous computational fluid dynamic (CFD) model has been developed to predict the selective catalytic deoxygenation of palm oil to produce green diesel over an Ni/ZrO2 catalyst. The modelling results were compared to experimental data, and a very good validation was obtained. It was found that for the Ni/ZrO2 catalyst, the paraffin conversion increased with temperature, reaching a maximum value (>95%) at 300 °C. However, temperatures greater than 300 °C resulted in a loss of conversion due to the fact of catalyst deactivation. In addition, at longer times, the model predicted that the catalyst activity would decline faster at temperatures higher than 250 °C. The CFD model was able to predict this deactivation by relating the catalytic activity with the reaction temperature. |
Keywords | green diesel; catalyst deactivation; selective deoxygenation; computational fluid dynamics (CFD) |
Year | 2021 |
Journal | Catalysts |
Journal citation | 11 (6), p. e747 |
Publisher | MDPI |
ISSN | 2073-4344 |
Digital Object Identifier (DOI) | https://doi.org/10.3390/catal11060747 |
Publication dates | |
Online | 18 Jun 2021 |
Publication process dates | |
Accepted | 16 Jun 2021 |
Deposited | 24 Mar 2022 |
Publisher's version | License |
License | https://creativecommons.org/licenses/by/4.0/ |
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