Gasification of biomass and treatment sludge in a fixed bed gasifier


ÖNGEN A. , ÖZCAN H. K. , Ozbas E. E.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.41, no.19, pp.8146-8153, 2016 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 41 Issue: 19
  • Publication Date: 2016
  • Doi Number: 10.1016/j.ijhydene.2015.11.159
  • Title of Journal : INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Page Numbers: pp.8146-8153
  • Keywords: Pyrolysis, Gasification, Syngas, Waste-to-energy, STEAM GASIFICATION, FLUIDIZED-BED, SEWAGE-SLUDGE, DESIGN, WASTE, WATER

Abstract

This study aims to compare synthetic gas (syngas) production efficiencies of a specific forest residue (chamaecyparis lawsoniana) and treatment sludge from a textile industry. The experiments were carried out in a lab-scale fixed bed steel reactor with cyclone separator. Gasification process was assisted by pre-pyrolysis of the samples at 300 degrees C in an inert media via N-2 gas. Internal temperature of the reactor during gasification was 750 degrees C. Dried air was used as an oxidizing agent with the varying flow rates of 0.05, 0.1 and 0.2 L min(-1) in order to determine optimum flow rate. The highest syngas calorific values was calculated around 2500-2677 kcal m(-3) for chamaecyparis and 2500-2680 kcal m(-3) for the treatment sludge when the flow rate was 0.05 L min(-1). Solid residues and liquid products were weighed after each experiment. 55 wt% of chamaecyparis and 30 wt% of treatment sludge were converted in to medium calorific syngas. (C) 2015 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.