Deoxygenation of triolein to green diesel in the H-2-free condition: Effect of transition metal oxide supported on zeolite Y

Choo, Min-Yee and Oi, Lee Eng and Ling, Tau Chuan and Ng, Eng-Poh and Lin, Yu-Chuan and Centi, Gabriele and Juan, Joon Ching (2020) Deoxygenation of triolein to green diesel in the H-2-free condition: Effect of transition metal oxide supported on zeolite Y. Journal of Analytical and Applied Pyrolysis, 147. ISSN 0165-2370, DOI https://doi.org/10.1016/j.jaap.2020.104797.

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Abstract

H-2-free deoxygenation is a very important process in producing high-quality biofuel without the use of H-2 gas supply. Considering the costly price of the noble metals, transition metal (TM) based catalysts are more affordable, and the performance is comparable to the noble metal-based catalyst. In this study, TMO supported on zeolite Y catalysts (Ni-, Cu-, Co-, Zn- and Mn-Y) are prepared via wet-impregnation for deoxygenation of triolein, a model compound of non-edible oil under H-2-free condition. The deoxygenation activity of TMO supported on zeolite Y is following the order of Ni-Y > Co-Y > Cu-Y > Mn-Y > Zn-Y. The nickel oxide supported on zeolite-Y (Ni-Y) shows the highest conversion up to 76.21 % with 84.28 % hydrocarbon selectivity after reacted at 380 degrees C for 2 h. Besides, the selectivity toward diesel range hydrocarbon is 92.61 %. The superior deoxygenation activity of Ni-Y can be related to synergistic effect between the reduced B/L and high hydrogenolysis ability of Ni that promote the decarboxylation reaction, suppress the cracking and polymerization of heavy hydrocarbon. Therefore, Ni-Y is a potential catalyst to obtain high quality green diesel from non-edible oil through catalytic deoxygenation without addition of external H-2 source.

Item Type: Article
Funders: IPPP [Grant no. PG013-2015B], SATU [Grant no. RU018D-2016, ST009-2017]
Uncontrolled Keywords: Deoxygenation; Triolein; Green diesel; Zeolite Y; Transition metal oxide
Subjects: Q Science > QD Chemistry
Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Science > Institute of Biological Sciences
Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre
Depositing User: Ms Zaharah Ramly
Date Deposited: 10 Jun 2025 02:40
Last Modified: 10 Jun 2025 02:40
URI: http://eprints.um.edu.my/id/eprint/36715

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