Combustion reactivity estimation parameters of biomass compared with lignite based on thermogravimetric analysis

Buse Bilkic, Hanzade Haykiri-Acma, Serdar Yaman*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Combustion reactivity of biomass (Robinia Pseudoacacia) was compared with lignite’s reactivity using various parameters (group A) based on thermal analysis data including ignition temperature (Ti), burning rate (dw/dt), burnout temperature (Tb), heat-flow (H), weights/temperatures/times, etc., and some calculated parameters (Group B) such as conversions or indices of reactivity/combustion performance [mean combustion reactivity (Rm), time-based reactivity (Rt), reactivity normalized to initial sample weight (Rw), ignition index (Di), comprehensive combustion index (S), burnout performance index (Db), combustion index (Hf), and combustion stability indices (Dcs, Dw)]. Although the conversion yields as well as Rt or Rw pointed out that biomass was more reactive than lignite, some reactivity parameters such as the Ti, temperature/time at 5% conversion, the temperature of maximum heat flow implied that lignite’s reactivity was higher probably due to catalytic effects of minerals. Therefore, a comparison of reactivity considering only the Group A parameters especially for low temperatures can lead to misconception.

Original languageEnglish
Pages (from-to)370-383
Number of pages14
JournalEnergy Sources, Part A: Recovery, Utilization and Environmental Effects
Issue number1
Publication statusPublished - 2023

Bibliographical note

Publisher Copyright:
© 2023 Taylor & Francis Group, LLC.


The authors would like to thank Istanbul Technical University (ITU) for financial support within the Scientific Research Project (MYL-2018-41504).

FundersFunder number
Istanbul Teknik ÜniversitesiMYL-2018-41504


    • biomass
    • Combustionreactivity
    • lignite
    • thermogravimetry


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