Synthesis of renewable diesel range alkanes by hydrodeoxygenation of palmitic acid over 5% Ni/CNTs under mild conditions

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Abstract

Recently, the catalytic upgrading of bio-oil to renewable diesel has been attracting more and more attention. In the current paper, carbon nanotube (CNT)-supported nickel catalysts, namely, 5% Ni/CNTs, were prepared for liquid hydrocarbon production through the deoxygenation of palmitic acid, the model compound of bio-oil under a mild condition of 240°C reaction temperature and 2 MPa H2 pressure. The experimental results revealed that the main reaction product was pentadecane (yield of 89.64%) at an optimum palmitic acid conversion of 97.25% via the hydrodecarbonylation (HDC) process. The deoxygenation mechanism for palmitic acid conversion was also investigated. This study provides technical parameters and a theoretical basis for further industrialization in the bio-oil upgrading process.

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Duan, Y., Ding, R., Shi, Y., Fang, X., Hu, H., Yang, M., & Wu, Y. (2017). Synthesis of renewable diesel range alkanes by hydrodeoxygenation of palmitic acid over 5% Ni/CNTs under mild conditions. Catalysts, 7(3). https://doi.org/10.3390/catal7030081

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