1. Hydrodeoxygenation of lignin-derived phenolic compounds to hydrocarbons over Ni/SiO2-ZrO2 catalysts
- Author
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Lungang Chen, Longlong Ma, Xinghua Zhang, Yuxiao Yu, Tiejun Wang, and Qi Zhang
- Subjects
Environmental Engineering ,Time Factors ,Cyclohexane ,Bioengineering ,Lignin ,Catalysis ,chemistry.chemical_compound ,Phenols ,X-Ray Diffraction ,Nickel ,Spectroscopy, Fourier Transform Infrared ,Organic chemistry ,Benzene ,Waste Management and Disposal ,chemistry.chemical_classification ,Renewable Energy, Sustainability and the Environment ,Guaiacol ,Temperature ,General Medicine ,Silicon Dioxide ,Product distribution ,Oxygen ,Hydrocarbon ,chemistry ,Hydrogenation ,Zirconium ,Hydrodeoxygenation ,Porosity ,Biotechnology - Abstract
Inexpensive non-sulfided Ni-based catalysts were evaluated for hydrodeoxygenation (HDO) using guaiacol as model compound. SiO2-ZrO2 (SZ), a complex oxide synthesized by precipitation method with different ratio of Si/Zr, was impregnated with Ni(NO3)2·6H2O and calcined at 500°C. Conversion rates and product distribution for guaiacol HDO at 200-340°C were determined. Guaiacol conversion reached the maximum at 300°C in the presence of Ni/SZ-3. When HDO reaction was carried out with real lignin-derived phenolic compounds under the optimal conditions determined for guaiacol, the total yield of hydrocarbons was 62.81%. These hydrocarbons were comprised of cyclohexane, alkyl-substituted cyclohexane and alkyl-substituted benzene. They have high octane number, would be the most desirable components for fungible liquid transportation fuel.
- Published
- 2012