Synergistic effect with and without Ni metal over ZSM-5/SAPO-11 catalyst in hydrodeoxygenation of palm oil

Abstract

Hydrodeoxygenation (HDO) of palm oil by catalytic for biofuels has attracted the researchers in the recent years. Currently available catalysts are typically intensive on sulfided CoMo and NiMo catalysts, which certainly modeled by the sulfur contamination in the final liquid product. Consequently, exploring the non-sulfured catalyst is still vulnerable challenge and has ultimate importance. In this paper, sulfur free catalyst with and without Ni based SAPO-11/HZSM-5 is synthesized according to incipient wetness impregnation method. The prepared catalyst was tested by performing HDO of palm oil for product selectivity. Different analytical techniques were used like: XRD, FESEM, Pyridine-FTIR and H2-TPD to explore the physicochemical properties of the novel catalyst. In addition, Ni supported ZSM-5/SAPO-11 catalyst with medium acidity showed greater properties because of the synergistic effect of Ni metal and acidic support than the catalyst without Ni support. The results showed that the, catalyst acidity has suggestively inclined the catalytic performance and product selectivity. The maximum selectivity of biofuel was achieved with ZSM-5/SAPO-11 over Ni support under the mild reaction condition at 350°C is indicating its auspicious part in this reaction. The acquired results determined that the metal and acid sites showed crucial role for the development of an effective catalyst for HDO of palm oil over Ni supported catalyst.