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Chemical and Biochemical Engineering Quarterly, Vol. 35 No. 1, 2021.

Original scientific paper

https://doi.org/10.15255/CABEQ.2020.1893

Development of Pd-supported Catalysts for the Conversion of Palm Oil to Biohydrogenated Diesel in a Microscale-based Reactor

Y. Sa-ngasaeng ; The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand
R. Nernrimnong ; The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand
N. Sirimungkalakul ; Innovation Institute, PTT Public Company Limited, Ayutthaya 13170, Thailand
G. Jovanovic ; School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR 97331, USA
S. Jongpatiwut ; a)The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand; d)Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand

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Abstract

In this research, the preparation of Pd-supported catalysts in microreactor was investigated for the production of renewable biohydrogenated diesel (BHD). Pd/Al2O3 and
Pd/TiO2 catalysts were prepared by two different coating methods, slurry suspension (SUS), and sol-gel method (SG). Catalysts were coated on microreactor walls and tested for the deoxygenation of palm oil to BHD at 325 ºC, 3.4 MPa, H2/feed molar ratio of 96. The coated catalysts were characterized by several techniques, including 3D-optical profiler, SEM-EDX, XRD, BET, and adhesion test. The experimental results show that SUS method provided a homogeneous catalyst layer, while the SG method gave a non-homogeneous cracked coating. In terms of catalytic activity, Pd/TiO2 (SG) exhibited the highest space-time yield (STY) of BHD (g BHD g–1 catalyst h–1), which could be due to its unique characteristics of pure anatase phase and strong metal-support interaction for hydrogen spillover mechanism.







This work is licensed under a Creative Commons Attribution 4.0 International License.

Keywords

deoxygenation; catalyst coating; biohydrogenated diesel; microscale-based reactor

Hrčak ID:

256416

URI

https://hrcak.srce.hr/256416

Publication date:

25.4.2021.

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