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Characterization of bio-oils and bio-char obtained from the pyrolysis of a mixture of Lolium perenne, Festuca ovina, Festuca rubra and Poa pratensis grasses

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Baysal, Mustafa and Yürüm, Yuda (2016) Characterization of bio-oils and bio-char obtained from the pyrolysis of a mixture of Lolium perenne, Festuca ovina, Festuca rubra and Poa pratensis grasses. Biofuels, 7 (2). pp. 181-189. ISSN 1759-7269 (Print) 1759-7277 (Online)

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Official URL: http://dx.doi.org/10.1080/17597269.2015.1123983

Abstract

In this work, the yield and chemical characterization of products obtained from the pyrolysis of a mixture of Lolium perenne, Festuca ovina, Festuca rubra and Poa pratensis grasses under an inert atmosphere at 600 degrees C with a heating rate of 50 degrees C/min was studied. Distribution of the products of pyrolysis grass sample was: moisture: 8 +/- 2%, total volatiles: 78 +/- 7%, char: 14 +/- 5%. Bio-oils were acidic and dark brown liquids and they were separated into oils, asphaltenes and asphaltols by solvent extraction procedures prior to gas chromatography-mass spectrometry (GC-MS) analyses. GC-MS results showed that the bio-oils contained complex mixtures of organic compounds, including acetic acid and a large variety of oxygenated and nitrogenated compounds such as phenols, pyridines, pyrazoles, imidazoles, amines, and ketones. SEM micrographs of the bio-chars indicated amorphous, porous and heterogeneous structure of the bio-char obtained from the grass sample. EDX analysis of the bio-char revealed that bio-char contained K, Ca, P and Mg elements.

Item Type:Article
Uncontrolled Keywords:Bio-mass; bio-oils; bio-chars; GC-MS analysis; SEM
Subjects:T Technology > TP Chemical technology > TP0155-156 Chemical engineering
T Technology > TP Chemical technology > TP0315-360 Fuel
ID Code:30010
Deposited By:Yuda Yürüm
Deposited On:10 Nov 2016 15:05
Last Modified:10 Nov 2016 15:05

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