Effect of chemically reduced palladium supported catalyst on sunflower oil hydrogenation conversion and selectivity

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Abstract

Catalytic hydrogenation of sunflower oil was studied in order to improve the conversion and to reduce the trans-isomerization selectivity. The hydrogenation was performed using Pd–B/γ-Al2O3 prepared catalyst and Pd/Al2O3 commercial catalyst under similar conditions. The Pd–B/γ-Al2O3 catalyst was prepared by wet impregnation and chemical reduction processes. It was characterized by Brunauer–Emmett–Teller surface area analysis (BET), X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The result of sunflower oil hydrogenation on Pd–B/γ-Al2O3 catalyst showed a 17% higher conversion and a 23% lower trans-isomerization selectivity compared to the commercial Pd/Al2O3 catalyst. The chemical reduction of palladium supported catalyst using potassium borohydride (KBH4) has affected the Pd–B/γ-Al2O3 catalyst's structure and particle size. These most likely influenced its catalytic performance toward higher conversion and lower trans-isomerization selectivity.

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Alshaibani, A., Yaakob, Z., Alsobaai, A., & Sahri, M. (2017). Effect of chemically reduced palladium supported catalyst on sunflower oil hydrogenation conversion and selectivity. Arabian Journal of Chemistry, 10, S1188–S1192. https://doi.org/10.1016/j.arabjc.2013.02.014

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