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Catalysts 2019, 9(3), 268;

Hydrogenation of Bio-Oil Model Compounds over Raney-Ni at Ambient Pressure

Department of Petroleum Technology and Alternative Fuels, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6–Dejvice, Czech Republic
Author to whom correspondence should be addressed.
Received: 12 February 2019 / Revised: 4 March 2019 / Accepted: 13 March 2019 / Published: 15 March 2019
(This article belongs to the Special Issue Development of Catalysts for Green Diesel Production)
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Lignocellulosic biofuels are the most promising sustainable fuels that can be added to the crude oil pool to refill the dwindling fossil resources. In this work, we tested a Raney-Ni catalyst for the hydrogenation of four bio-oil model compounds and their binary mixtures to assess their reactivity under mild conditions suitable for bio-oil stabilization preceding green diesel production from lignocellulosic biomass. The hydrogenation experiments were performed at ambient hydrogen pressure at temperatures in the range 30–70 °C. Raney-Ni was found to hydrogenate all investigated model compounds efficiently; both carbonyl groups and double bonds were saturated. In addition, it was also active in the demethoxylation of guaiacol. When studying the binary mixtures, furfuryl alcohol was found to significantly inhibit the hydrogenation of the other model compounds (guaiacol and methyl isobutyl ketone) due to their very strong adsorption. View Full-Text
Keywords: Raney-Ni; bio-oil; model compounds; hydrogenation; green diesel Raney-Ni; bio-oil; model compounds; hydrogenation; green diesel

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Shumeiko, B.; Schlackl, K.; Kubička, D. Hydrogenation of Bio-Oil Model Compounds over Raney-Ni at Ambient Pressure. Catalysts 2019, 9, 268.

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