Article ID Journal Published Year Pages File Type
7070035 Bioresource Technology 2016 10 Pages PDF
Abstract
The catalytic pyrolysis of Cirsium arvense was performed with titania supported catalysts under the operating conditions of 500 °C, 40 °C/min heating rate, 100 mL/min N2 flow rate in a fixed bed reactor for biofuel production. The effect of catalysts on product yields was investigated. The amount of pyrolysis products (bio-char, bio-oil, gas) and the composition of the produced bio-oils were determined by proton nuclear magnetic resonance (1H NMR), Fourier transform infrared spectroscopy (FT-IR), gas chromatography/mass spectrometry (GC-MS) and elemental analysis (EA) techniques. Thistle bio-oils had lower O/C and H/C molar ratios compared to feedstock. The highest bio-char and bio-oil yields of 29.32 wt% and 36.71 wt% were obtained in the presence of Ce/TiO2 and Ni/TiO2 catalysts respectively. GC-MS identified 97 different compounds in the bio-oils obtained from thistle pyrolysis. 1H NMR analysis showed that the bio-oils contained ∼55-77% aliphatic and ∼6-19% aromatic structural units.
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Physical Sciences and Engineering Chemical Engineering Process Chemistry and Technology
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