Title: Thermal treatment of fleshing residue for producing syngas

Authors: Atakan Ongen; Semiha Arayıcı

Addresses: Faculty of Engineering, Department of Environmental Engineering, Istanbul University, 34320, Istanbul, Turkey ' Faculty of Engineering, Department of Environmental Engineering, Istanbul University, 34320, Istanbul, Turkey

Abstract: In this paper, characteristics of syngas from the pyrolysis and gasification of tannery industry fleshing residues has been investigated. Pyrolysis and gasification behaviour were evaluated in terms of syngas composition and total energy production. Dried air and pure oxygen (99%) were used as gasification agents. Experiments were also erformed in oxygen-free media. H₂, CO and CH₄ levels in producer gas were analysed and calorific values were calculated. Besides, weight and volume reductions during each experiment were reported. Dried air flow varied between 0.05 and 0.5 L/min during experiments. Syngas composition with higher calorific value was achieved between 0.1-0.2 L/min. It was determined that calorific values decreased related to the decrease in volume percentages of H₂, CO and CH₄ over 0.2 L/min gas flow. According to the statistical analysis, gasification agent had an important role in gasification performance. Average calorific value, achieved by pure oxygen, was higher than the value achieved by dried air. The lowest efficiency was achieved in oxygen-free media.

Keywords: fleshing residue; gasification; thermochemical treatment; syngas production; tannery industry.

DOI: 10.1504/IJGW.2014.061006

International Journal of Global Warming, 2014 Vol.6 No.2/3, pp.149 - 159

Received: 09 Oct 2012
Accepted: 01 Feb 2013
Published online: 02 Jul 2014 *

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