Torrefaction of empty fruit bunch as fibrous biomass pre-treatment

Endah Laksmi Nugraha*, Ridho Hantoro

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


The utilization of empty bunches (EFB) as biomass still limited. EFB is used as additional fuel in palm oil mills where the combustion process is directly used. This process has deficiencies due to the characteristics of empty bunches which tend to have high water content. To achieve good combustion results, EFB required pre-treatment technique. In this study, experimental studies of EFB pre-treatment is proposed by torrefaction to improve EFB energy quality. Torrefaction of EFB is performed in several temperature variations with a range between 150-300 °C (150,200,250,300) and a certain duration(15,20,25,30,45 minutes). An investigation is done by using a calorimetric bomb, proximate analysis to find the moisture and ash content and ultimate analysis, which determined the chemical properties of the pre-treatment process. The physical properties of EFB, which fibrous and tough makes EFB size reduction difficult to reach homogenous state. Mass yield of torrefied EFB decreased with increasing temperature as well as with increasing times of torrefaction. Fundamentally, the study has highlighted the effects of torrefaction on solid fuel properties of EFB and its potential as a solid fuel for future thermal applications.

Original languageEnglish
Title of host publicationSeminar on Materials Science and Technology
EditorsLukman Noerochim
PublisherTrans Tech Publications Ltd
Number of pages5
ISBN (Print)9783035714340
Publication statusPublished - 2019
Event4th International Seminar on Science and Technology, ISST 2018 - Surabaya, Indonesia
Duration: 9 Aug 20189 Aug 2018

Publication series

NameMaterials Science Forum
Volume964 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752


Conference4th International Seminar on Science and Technology, ISST 2018


  • EFB
  • Fibrous biomass
  • Pre-treatment
  • Torrefaction


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