title: A study on pyrolysis of Canada thistle (Cirsium arvense) with titania based catalysts for bio-fuel production.
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, 100mL/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 ((1)H 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 29.32wt% and 36.71wt% 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. (1)H NMR analysis showed that the bio-oils contained ∼55-77% aliphatic and ∼6-19% aromatic structural units.
authors.affiliation: Yüzüncü Yıl University, Faculty of Science, Department of Chemistry, Van, Turkey. Electronic address: tevfikaysu@yyu.edu.tr.
authors.forename: Tevfik
authors.initials: T
authors.lastname: Aysu
mesh_terms: D056804:Biofuels / Q000032:analysis; D002170:Canada; D002384:Catalysis; D031180:Cirsium / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D006358:Hot Temperature; D009682:Magnetic Resonance Spectroscopy; D009821:Oils / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D014025:Titanium / Q000737:chemistry
chemical_list: D056804:Biofuels; D009821:Oils; C009495:titanium dioxide; D014025:Titanium
keywords: Bio-oil; Catalyst; Cirsium arvense; Pyrolysis; Thistle; Titania