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Pyrolysis and combustion behaviour of coal-MBM blends.

G Skodras1, P Grammelis, P Basinas

  • 1Chemical Process Engineering Laboratory, Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki, Greece. skodras@eng.auth.gr

Bioresource Technology
|January 31, 2006
PubMed
Summary

This study investigated meat and bone meal (MBM) and brown coal blends using thermogravimetric analysis. MBM enhanced pyrolysis rates and conversion, with interactions affecting fuel behavior during combustion.

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Area of Science:

  • Biomass energy conversion
  • Thermochemical processing
  • Fuel characterization

Background:

  • Meat and bone meal (MBM) is a potential biofuel.
  • Greek brown coal is a widely studied lignite.
  • Understanding fuel blends is crucial for optimizing energy production.

Purpose of the Study:

  • To investigate the thermogravimetric behavior of MBM and Greek brown coal blends.
  • To analyze pyrolysis and combustion characteristics of MBM-coal blends.
  • To identify interactions between MBM and brown coal during thermal decomposition.

Main Methods:

  • Thermogravimetric analysis (TGA) was used to study fuel behavior.
  • Pyrolysis and combustion conditions were simulated.
  • Demineralized MBM was used to assess mineral matter effects.

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Main Results:

  • MBM exhibited higher pyrolysis rates than brown coal due to volatile content.
  • Blending MBM with brown coal increased conversion rates.
  • Interactions between MBM and coal influenced pyrolysis, with mineral matter showing a catalytic effect on MBM.
  • Combustion alterations due to mineral matter were minimal, and MBM's reactivity decreased in blends.

Conclusions:

  • MBM shows promise as a co-fuel with brown coal, enhancing pyrolysis.
  • Interactions between fuel components significantly impact thermal decomposition behavior.
  • Mineral matter plays a role in MBM pyrolysis, affecting reaction rates and temperature.