Hydrothermal carbonization and slow pyrolysis as two thermal techniques for the production of carbon rich, added-value materials using olive milling byproduct: Quid optimus?

A. A. Azzaz, M. Jcguirim, S. Jellali, C. Ghimbeu

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In the current research work, the generation of carbon rich materials from abundant low-cost lignocellulosic waste was assessed using two thermal conversion techniques, namely hydrothermal carbonization (HTC) and slow pyrolysis. Herein, the impact of temperature variation on the physio-chemical properties of hydrochars and biochars produced from the raw olive pomace (ROP) was investigated by multiple analysis techniques. Results suggest that hydrochars present the highest solid yields with interesting final content in functional groups. On the other hand, biochars issued from slow pyrolysis presented important carbon percentage and low volatile matter content. FTIR analysis suggested a significant alteration of the surface after pyrolysis process compared to HTC.

Original languageEnglish
Title of host publication11th International Renewable Energy Congress, IREC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728155722
Publication statusPublished - Oct 29 2020
Event11th International Renewable Energy Congress, IREC 2020 - Virtual, Hammamet, Tunisia
Duration: Oct 29 2020Oct 31 2020

Publication series

Name11th International Renewable Energy Congress, IREC 2020


Conference11th International Renewable Energy Congress, IREC 2020
CityVirtual, Hammamet


  • Characterization
  • Hydrothermal Carbonization
  • Pyrolysis
  • Raw Olive Pomace

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering

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