Catalytic performance of a Ni catalyst supported on CeO2, ZrO2 and CeO2–ZrO2 in the upgrading of cellulose fast pyrolysis vapors - 20/11/15
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Abstract |
This work was devoted to the investigation of the catalytic performance of a Ni catalyst supported on CeO2, ZrO2 and CeO2–ZrO2 in the upgrading of cellulose fast-pyrolysis vapors. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and temperature-programmed reduction (TPR) were used for the surface characterization of the prepared materials. The activity of the catalysts was evaluated by analytical pyrolysis gas chromatography/mass spectrometry (Py-GC/MS). It was demonstrated that the use of 20%Ni/15%CeO2–ZrO2 allowed one to obtain the highest olefin and paraffin contents, while owing to the application of 20%Ni/ZrO2 catalyst the largest amount of aromatics was produced and a considerable decrease in the amount of carboxylic acid fraction was noticed.
Le texte complet de cet article est disponible en PDF.Keywords : Heterogeneous catalysis, Supported catalysts, Nickel, Cerium, Zirconium, Sustainable chemistry
Plan
Vol 18 - N° 11
P. 1223-1228 - novembre 2015 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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