Synthesis of high stability Mo/SiO2 catalyst utilizing Parangtritis beach sand for hydrocracking waste palm oil into biofuel

Alisha, Gesha Desy and Trisunaryanti, Wega and Syoufan, Akhmad and Larasati, Savitri (2023) Synthesis of high stability Mo/SiO2 catalyst utilizing Parangtritis beach sand for hydrocracking waste palm oil into biofuel. Biomass Conversion and Biorefinery, 13 (12). pp. 11041-11055. ISSN 21906815

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Abstract

In this work, the optimum condition for hydrocracking waste palm oil (WPO) over Mo/SiO2 catalyst was studied in order
to obtain biofuel with high level hydrocarbon. Natural source Parangtritis beach sand was utilized to provide amorphous silica support for preparing Mo/SiO2 hydrocracking catalyst via wet impregnation in fve diferent Mo concentrations: 1.22 wt%, 4.50 wt%, 4.66 wt%, 5.74 wt%, 7.63 wt%, and each is labelled as Mo(A)/SiO2, Mo(B)/SiO2, Mo(C)/SiO2, Mo(D)/SiO2, and Mo(E)/SiO2, respectively. With the use of amorphous SiO2, two MoO3 structures, α-MoO3 and h-MoO3, were found in catalysts comprising Mo≥4 wt% in XRD analysis. This study shows that at 550 °C with 1:300 catalyst:feed ratio, Mo(C)/SiO2, which possesses the highest total acidity among the others (1.71 mmol/g), exhibits an excellent hydrocracking performance by producing over 87 wt% liquid conversion containing 94 wt% hydrocarbon compounds. Moreover, the reusability of Mo(C)/SiO2 was found to be efective for 5 hydrocracking runs before it started to show a declining conversion level. Regeneration of Mo(C)/SiO2 was surprisingly able to recover its initial performance by producing 75.78 wt% liquid product containing 90.03 wt% hydrocarbon in the hydrocracking of WPO.

Item Type: Article
Uncontrolled Keywords: Molybdenum; Hydrocracking; Biofuel; Amorphous silica; Catalyst
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Mathematics and Natural Sciences > Chemistry Department
Depositing User: Wiyarsih Wiyarsih
Date Deposited: 15 Aug 2024 05:17
Last Modified: 15 Aug 2024 05:17
URI: https://ir.lib.ugm.ac.id/id/eprint/3348

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