Bio-oil production from Onopordum acanthium L. by slow pyrolysis


Gercel H. F.

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, vol.92, no.1, pp.233-238, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 92 Issue: 1
  • Publication Date: 2011
  • Doi Number: 10.1016/j.jaap.2011.06.002
  • Journal Name: JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.233-238
  • Keywords: Biomass, Onopordum acanthium L., Pyrolysis, Bio-oil, Energy, FIXED-BED PYROLYSIS, ENERGY-PRODUCTION, ACTIVATED CARBON, LIQUID PRODUCTS, BIOMASS, CONVERSION, REACTOR, YIELDS, HYDROPYROLYSIS, CATALYSTS
  • Anadolu University Affiliated: Yes

Abstract

In this study, the usability of the plant thistle, Onopordum acanthium L., belonging to the family Asteraceae (Compositae), in liquid fuel production has been investigated. The experiments were performed in a fixed-bed Heinze pyrolysis reactor to investigate the effects of heating rate, pyrolysis temperature and sepiolite percentage on the pyrolysis product yields and chemical compositions. Experiments were carried out in a static atmosphere with a heating rate of 7 degrees C/min and 40 degrees C/min, pyrolysis temperature of 350, 400, 500, 550 and 700 degrees C and particle size of 0.6 < D-p < 0.85 mm. Catalyst experiments were conducted in a static atmosphere with a heating rate of 40 degrees C/min, pyrolysis temperature of 550 degrees C and particle size of 0.6 < D-p < 0.85 mm. Bio-oil yield increased from 18.5% to 27.3% with the presence of 10% of sepiolite catalyst at pyrolysis temperature of 550 degrees C, with a heating rate of 40 degrees C/min, and particle size of 0.6 < D-p < 0.85 mm. It means that the yield of bio-oil was increased at around 48.0% after the catalyst added. Chromatographic and spectroscopic studies on the bio-oil showed that the oil obtained from O. acanthium L could be used as a renewable fuels and chemical feedstock. (C) 2011 Elsevier B.V. All rights reserved.