Issue 18, 2025

Partial hydrogenation of soybean oil over a Pd/bentonite catalyst

Abstract

In the chemical industry, hydrogenation reactions play a significant role by saturating double bonds in vegetable oils. While most selective hydrogenation processes are carried out at high temperatures (120–180 °C), the development of catalytic systems for partial hydrogenation at low temperatures has been scarcely studied. In this context, we investigated a catalyst obtained by incipient wetness impregnating a Pd(II) salt onto bentonite, following its reduction to Pd(0). Under these conditions, a metal loading of 1.4% was achieved. At 550 psi of H2, we proved the catalyst to be excellent for the partial hydrogenation of soybean oil at 25 °C and 70 °C, achieving iodine values (IV) of 76 and 71, respectively. These results are remarkable, particularly when considering the hydrogenation product as a potential feedstock.

Graphical abstract: Partial hydrogenation of soybean oil over a Pd/bentonite catalyst

Article information

Article type
Paper
Submitted
18 Feb 2025
Accepted
24 Apr 2025
First published
02 May 2025
This article is Open Access
Creative Commons BY license

RSC Adv., 2025,15, 14292-14306

Partial hydrogenation of soybean oil over a Pd/bentonite catalyst

K. Herrera-Guzmán, S. A. Francisco-Bustos, E. Torales, J. A. Peña-Jiménez, R. Gaviño, E. García-Ríos, O. A. Ramírez-Marroquín, J. A. Morales-Serna and J. Cárdenas, RSC Adv., 2025, 15, 14292 DOI: 10.1039/D5RA01198A

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