Biochar production from grape marc, kenaf stems and flax shives: Effect of temperature on textural and physicochemical properties

Amel Ibn Ferjani, Mejdi Jeguirim, Lionel Limousy, Salah Jellali, Hanene Akrout

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

1 Citation (Scopus)


In this study, three feedstocks were studied (Grape marc, Kenaf stems, flax shive) for biochar production. The pyrolysis operation was carried out at 400; 500 and 600°C and a constant heating gradient rate of 5 °C/min for a future potential use in agriculture. The experimental results showed that the biochar yields decreased with the increase of the applied pyrolysis temperature and were approximately constant above 500°C for all feedstock.The physico-chemical properties of grape marc and Kenaf indicated that they have the highest amount of potentially available minerals with an interesting value of surface area and microposity. These properties make these biochars suitable candidates for soil amendments as well as pollutants removal from aqueous and gaseous effluents.

Original languageEnglish
Title of host publication2019 10th International Renewable Energy Congress, IREC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728101392
Publication statusPublished - Mar 2019
Externally publishedYes
Event10th International Renewable Energy Congress, IREC 2019 - Sousse, Tunisia
Duration: Mar 26 2019Mar 28 2019

Publication series

Name2019 10th International Renewable Energy Congress, IREC 2019


Conference10th International Renewable Energy Congress, IREC 2019


  • Flax shives
  • Grape marc
  • Kenaf stem
  • nutrients availability
  • pyrolysis; biochar
  • textural properties

ASJC Scopus subject areas

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

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