A promoter effect on hydrodeoxygenation reactions of oleic acid by zeolite beta catalysts

I. Nur Azreena and H.L.N. Lau and N. Asikin-Mijan and M.A. Hassan and Saiman Mohd Izham and E. Kennedy and M. Stockenhuber and M.S. Mastuli and Fahad A. Alharthi and Abdulaziz Ali Alghamdi and Yap, Taufiq Yun Hin (2021) A promoter effect on hydrodeoxygenation reactions of oleic acid by zeolite beta catalysts. Journal of Analytical and Applied Pyrolysis, 155 (105044). pp. 1-12. ISSN 0165-2370

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Abstract

In this study, various metal-modified zeolite beta-based catalysts such as La(10)zeo(90), Co(10)zeo(90), Fe(10)zeo(90), Mg(10)zeo(90), Mn(10)zeo(90) and Zn(10)zeo(90) were investigated in the hydrodeoxygenation (HDO) of oleic acid (OA) to produce renewable diesel. The La(10)zeo(90) catalyst showed a conversion of OA up to 99 % with 83 % C15 and C17 selectivity after the reaction at 350 ◦C for 2 h under 4 MPa H2 pressure. The superior activity of La(10)zeo(90) was attributed to the synergistic interaction between La-Si-Al, a sufficient amount of weak+ medium acid sites and excellent textural properties (large pore diameter). Larger pore diameter of La(10)zeo(90) is highly desirable as it will generate greater diffusion of bulky molecules, thereby improving the accessibility of the reactant and hence excellent catalytic activity. The vacuum distillation was used to purify the crude liquid product (CLP), producing high-quality diesel fractions mainly comprising C14, C15, and C17 fractions.

Item Type:	Article
Keyword:	Biofuel , Diesel , Hydrodeoxygenation , Oleic acid , Zeolite beta
Subjects:	T Technology > TP Chemical technology > TP1-1185 Chemical technology
Department:	FACULTY > Faculty of Science and Natural Resources
Depositing User:	SAFRUDIN BIN DARUN -
Date Deposited:	18 May 2022 11:55
Last Modified:	18 May 2022 11:55
URI:	https://eprints.ums.edu.my/id/eprint/32569

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