Physicochemical properties of hydrothermally treated peat fuel obtained from Mempawah-West Kalimantan: Influence of hydrophilicity index on carbon aromaticity and combustibility

Anggoro Tri Mursito, T. Hirajima, L. N. Listiyowati

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Mempawah peat of West Kalimantan was selected as raw material for studying the physicochemical properties of peat fuel products and their characteristic in the hydrothermal upgrading process at a temperature range of 150°C to 380°C at an average heating rate of 6.6°C/min for 30 minutes. The 13C NMR spectra revealed changes in the effect of temperature on carbon aromaticity of raw peat and peat fuel products which were in 0.39 to 0.63 as the temperature increased. Other phenomenon occurring during the experiment was hydrophilicity index of peat fuel surface decreases of about 1.7 and 1.4 with increased treatment temperature. We also found that hydrothermal upgrading also affected the combustion properties of peat fuel products. Ignition temperature of raw peat and solid products were at 175°C and between 188°C to 285°C respectively. Temperature at the maximum combustion rate of raw peat and solid products was at 460°C, and between 477°C to 509°C were suggested to the increasing of reactivity of solid products respectively. Here, we discussed several phenomenon of the peat fuel product during hydrothermal process with a respect to the change in the physicochemical properties as determined by Fourier Transform Infrared Spectroscopy (FTIR), Thermogravimetric and Differential Thermal Analysis (TG-DTA) analyses, 13C NMR and also other supporting analytical equipment.

Original languageEnglish
Article number012069
JournalIOP Conference Series: Earth and Environmental Science
Volume118
Issue number1
DOIs
Publication statusPublished - Feb 22 2018
Event1st Global Colloquium on GeoSciences and Engineering, GCGE 2017 - Bandung, Indonesia
Duration: Oct 18 2017Oct 19 2017

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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