Determination of kinetic parameters for thermal decomposition of bamboo leaf to extract bio-silica

Kien Woh Kow, Rozita Yusoff, A. R.Abdul Aziz, E. C. Abdullah

Research output: Journal PublicationArticlepeer-review

5 Citations (Scopus)

Abstract

Bio-silica has many applications due to its high reactivity and pozzolanic properties. The extraction of silica from biomass such as bamboo leaf is usually accomplished by thermal decomposition. Currently, the thermal decomposition requires external heat energy input. In this work, the possibility to reuse the heat released during thermal decomposition to make the process self-sustained is explored. The kinetic parameters of the combustion were determined by fitting thermogravimetric analysis (TGA) data to the Flynn–Wall–Ozawa model, where the corresponding activation energy and frequency factor are 211.7 ± 3.8 kJ mol−1 and 4.5 × 1015 s−1, respectively. The lower heating value of bamboo leaf determined is 8.709 kJ g−1, which is comparable to common wood fuels. Hence, the heat released in the combustion of bamboo leaf can be reused to make the process self-sustainable.

Original languageEnglish
Pages (from-to)3249-3254
Number of pages6
JournalEnergy Sources, Part A: Recovery, Utilization and Environmental Effects
Volume38
Issue number21
DOIs
Publication statusPublished - 1 Nov 2016
Externally publishedYes

Keywords

  • Bamboo leaf
  • Bambusa heterostachya
  • Flynn–Wall–Ozawa model
  • bio-silica
  • silica aerogel
  • thermogravimetric analysis

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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