Sewage sludge valorisation by means of pyrolysis and gasification

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Authors

  • Isabel Fonts Aragon Institute of Engineering Research, University of Zaragoza
  • Maria Aznar Aragon Institute of Engineering Research, University of Zaragoza
  • Javier Abrego Aragon Institute of Engineering Research, University of Zaragoza
  • Gorka Garcia Aragon Institute of Engineering Research, University of Zaragoza
  • Luisa Lazaro Aragon Institute of Engineering Research, University of Zaragoza

DOI:

https://doi.org/10.15626/Eco-Tech.2007.086

Keywords:

Sewage sludge; Pyrolysis; Gasification; Waste valorisation, Laboratory scale plant

Abstract

In this work, the main results about the investigations into the pyrolysis and the gasification of
sewage sludge of the Thermo-chemical Processes Group are being presented, Pyrolysis has
been carried out in three different experimental systems: two kinds of fixed bed reactors and a
fluidized bed reactor, In these experiments, the influence of the operational conditions on
product distribution and on some characteristics of these products has been studied, Pyrolysis
of sewage sludge in fluidized bed has been studied in order to maximize liquid fuel product
yield and optimize its composition. In fixed bed pyrolysis experiments, the influence of
pyrolysis conditions on the production of a solid product (char) and its adsorbent properties
have been studied. Gasification of sewage sludge has been studied in fluidized bed with the
aim of finding the operational conditions that maximize the production of gas and minimize
the presence of tar in this gas.

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Published

2007-12-12