Synthesis of mesoporous zeolite Y using Sapindus rarak extract as natural organic surfactant for deoxygenation of Reutealis trisperma oil to biofuel

Abdul Aziz, Berliana Gricelda Andini Putri, Didik Prasetyoko*, Reva Edra Nugraha*, Holilah Holilah, Hasliza Bahruji, Aishah Abdul Jalil, Suprapto Suprapto, Hartati Hartati, Nurul Asikin-Mijan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Saponin is a plant-derived chemical with an amphiphilic glycoconjugate structure extracted from sapindaceae plants like Sapindus rarak. This study investigated saponin extract of Sapindus rarak as a natural template for formation of mesoporous zeolite Y. Surface area and mesoporosity of zeolite Y were improved with optimization of Sapindus rarak extract (SRE) concentration (Y-Ln; n = 2, 5, 10 or 15 mL), reaching 216.26 m2 mesoporous area and 0.214 cm3 g−1 mesoporous volume for Y-L10 samples. A different loading of Ni was impregnated onto Y-L10 zeolite to improve Lewis/Brønsted acidity as catalysts in the deoxygenation of Reutealis trisperma oil (RTO) into hydrocarbon fuels. Impregnating 15% Ni on NaY zeolite enhanced Lewis acidity to 0.4556 mmol g−1, producing 48.8% liquid oil with 85.43% degree of deoxygenation. A high selectivity towards C15 and C17 hydrocarbon was analyzed from liquid yield, indicating the contributing factor from Lewis acidity and mesoporosity to enhance deoxygenation and prevent the hydrocracking reaction.

Original languageEnglish
Pages (from-to)32648-32659
Number of pages12
JournalRSC Advances
Volume13
Issue number46
DOIs
Publication statusPublished - 6 Nov 2023

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