ISSN: 0256-1115 (print version) ISSN: 1975-7220 (electronic version)
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Conflict of Interest
In relation to this article, we declare that there is no conflict of interest.
Publication history
Received October 6, 2024
Accepted February 21, 2025
Available online May 25, 2025
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Most Cited

Upscaled Catalytic Production of Renewable Biofuels from Hexanoic Acid

Korean Journal of Chemical Engineering, May 2025, 42(5), 1033-1043(11)
https://doi.org/10.1007/s11814-025-00431-2

Abstract

 The hydrodeoxygenation (HDO) reaction plays a crucial role in the catalytic upgrading of bio-derived platform chemicals

to renewable fuels and chemicals. Given its industrial versatility, the production of primary alcohols via the catalytic 

hydrodeoxygenation of carboxylic acids has been explored using the RuSn/ZnO catalyst demonstrating high performance 

and robust stability in high-pressure continuous-fl ow reaction systems. However, the complex synthesis procedures of this 

catalyst impose limitations on its applicability and scalability. Additionally, powder catalysts could cause a pressure drop 

across the catalytic beds, causing another challenge in a large-scale operation. To address these issues, a simplifi ed preparation

method for RuSn/ZnO catalyst utilizing commercial support was developed and pelletized sing methylcellulose and 

bentonite as binder. The pellet catalysts, with varying binder ratios (wt binder /wt cat ), were evaluated for the hydrodeoxygenation 

of hexanoic acid under diff erent reaction conditions. Characterization results confi rmed the formation of Ru 3 Sn 7 alloy on 

the RuSn/ZnO-5 (wt binder /wt cat = 0.05) catalyst, which selectively produced 1-hexanol with a yield of 72.7% under optimized 

reaction conditions. Notably, the RuSn/ZnO-30 catalyst could selectively produce biofuel components (1-hexanol and hexyl 

hexanoate) with high stability in 0.403 L/day of hexanoic acid hydrodeoxygenation. The developed catalytic system off ers the 

potential for advancing biomass conversion as a viable alternative to the conventional petrochemical processes, contributing 

to the industrialization of sustainable fuels and chemicals production.

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