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Lewis acid Ni/Al-MCM-41 catalysts for H2-free deoxygenation of Reutealis trisperma oil to biofuels.

ABSTRACT: The activity of mesoporous Al-MCM-41 for deoxygenation of Reutealis trisperma oil (RTO) was enhanced via modification with NiO nanoparticles. Deoxygenation at atmospheric pressure and under H2 free conditions required acid catalysts to ensure the removal of the oxygenated fragments in triglycerides to form liquid hydrocarbons. NiO at different weight loadings was impregnated onto Al-MCM-41 and the changes of Lewis/Brønsted acidity and mesoporosity of the catalysts were investigated. The activity of Al-MCM-41 was enhanced when impregnated with NiO due to the increase of Lewis acidity originating from NiO nanoparticles and the mesoporosity of Al-MCM-41. Increasing the NiO loading enhanced the Lewis acidity but not Brønsted acidity, leading to a higher conversion towards liquid hydrocarbon yield. Impregnation with 10% of NiO on Al-MCM-41 increased the conversion of RTO to hydrocarbons via the deoxygenation pathway and reduced the products from cracking reaction, consequently enhancing the green diesel (C11-C18) hydrocarbon products.

SUBMITTER: Nugraha RE 

PROVIDER: S-EPMC9034156 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature

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Lewis acid Ni/Al-MCM-41 catalysts for H<sub>2</sub>-free deoxygenation of <i>Reutealis trisperma</i> oil to biofuels.

Nugraha Reva Edra RE   Prasetyoko Didik D   Bahruji Hasliza H   Suprapto Suprapto S   Asikin-Mijan Nurul N   Oetami Titie Prapti TP   Jalil Aishah Abdul AA   Vo Dai-Viet N DN   Taufiq-Yap Yun Hin YH  

RSC advances 20210621 36

The activity of mesoporous Al-MCM-41 for deoxygenation of <i>Reutealis trisperma</i> oil (RTO) was enhanced <i>via</i> modification with NiO nanoparticles. Deoxygenation at atmospheric pressure and under H<sub>2</sub> free conditions required acid catalysts to ensure the removal of the oxygenated fragments in triglycerides to form liquid hydrocarbons. NiO at different weight loadings was impregnated onto Al-MCM-41 and the changes of Lewis/Brønsted acidity and mesoporosity of the catalysts were i  ...[more]

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