Modified mesoporous HMS supported Ni for deoxygenation of triolein into hydrocarbon-biofuel production

Zulkepli, Suraya and Juan, Joon Ching and Lee, Hwei Voon and Abd Rahman, Noorsaadah and Show, Pau Loke and Ng, Eng Poh (2018) Modified mesoporous HMS supported Ni for deoxygenation of triolein into hydrocarbon-biofuel production. Energy Conversion and Management, 165. pp. 495-508. ISSN 0196-8904, DOI

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A series of modified hexagonal mesoporous silica (HMS) supported by various Ni loading (5 wt% Ni, 10 wt% Ni, 40 wt% Ni and 100 wt% Ni) have been synthesized and systematically characterized. The resultant Ni catalysts improved the performance of the deoxygenation (DO) of triolein at a reaction temperature of 380 °C in a simple glass batch reactor under a solvent-free condition and are hydrogen-free. The incorporation of Ni loading into the HMS framework casued the catalytic activity to increase when compared to that of HMS. Surprisingly, 10 wt% Ni/HMS catalyst exhibited the highest conversion. It was observed that 10 wt% Ni loading was highly dispersed on the HMS which is capable of achieving 92.5% and 95.2% of conversion and selectivity, respectively. This is due to the synergistic effect of Si-O-Ni bonding and high dispersion of NiO on HMS. In this respect, the nature of catalyst support such as pore size and the high surface areas of HMS play an important role in enhancing the catalytic performance of DO reaction. This study has revealed that Ni/HMS catalyst is a promising catalyst that can be applied to the development of sustainable biofuel from non-edible oil.

Item Type: Article
Funders: Fundamental Research Grant (FP054-2013B), University of Malaya Research Grant (UMRG) RP025A/B/C-14AET, SATU grant (RU018D-2016), Postgraduate Research Fund Scheme (PG051-2015A), my SBUM scholarship from University of Malaya (UM)
Uncontrolled Keywords: Nickel; Mesoporous HMS; Deoxygenation; Hydrocarbons; Biofuel
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Faculty of Science > Department of Chemistry
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 25 Jan 2019 02:02
Last Modified: 25 Jan 2019 02:02

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