Steam pyrolysis of an industrial waste for bio-oil production


ÖNAL E., Uzun B. B., PÜTÜN A. E.

FUEL PROCESSING TECHNOLOGY, vol.92, no.5, pp.879-885, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 92 Issue: 5
  • Publication Date: 2011
  • Doi Number: 10.1016/j.fuproc.2010.12.006
  • Journal Name: FUEL PROCESSING TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.879-885
  • Keywords: Steam pyrolysis, Bio-oil, TGA, Potato skin, FIXED-BED PYROLYSIS, CATALYTIC PYROLYSIS, TUBULAR REACTOR, WATER-VAPOR, BIOMASS, YIELDS, TEMPERATURE, KINETICS, CAKE
  • Anadolu University Affiliated: Yes

Abstract

Potato skin, a food industry waste, was pyrolysed under three different atmospheres namely static, nitrogen, and steam to produce bio-oil and its derivatives. The oil yield obtained at 550 degrees C was 24.77% in static atmosphere, whereas it reached to 27.11% in nitrogen atmosphere. Moreover, the use of steam caused a sharp increase of oil yields up to 41.09% with a steam velocity of 1.3 cm s(-1). TG-DTA analyses were applied on the raw material to investigate the thermal degradation. Liquid products obtained under the most suitable conditions were characterized by elemental analyses. FT-IR and H-1 NMR. In addition, column chromatography was employed to separate the bio-oil into its derivatives. Asphaltene fraction of bio-oil is decreased under steam atmosphere. Gas chromatography was also used to investigate the C distributions. The characterization has shown that the bio-oil obtained under steam atmosphere was more beneficial than those obtained under both static and inert atmospheres. Further comparison of H/C ratios of pyrolysis oils with conventional fuels indicates that the H/C ratios of the oils obtained in this study lie between those of light and heavy petroleum products. It can be concluded that potato skin could be evaluated as a promising biomass candidate of bio-oil production. (c) 2011 Elsevier B.V. All rights reserved.